SPECIFICATION MANUAL Omega Paints & Chemical Industries 2007

Transcription

1 SPECIFICATION MANUAL Omega Paints & Chemical Industries 2007

2 INDEX A. MASTER SPECIFICATION 1. GENERAL TERMS 2. PRODUCTS 3. EXECUTION 4. PROFESSIONAL ADVICE STRUCTURAL TIMBER & WOOD 5. PROFESSIONAL ADVICE CONCRETE, PLASTER, MASONRY, BUILDING BOARDS 6. PROFESSIONAL ADVICE METAL SURFACES B. DECORATIVE SYSTEMS EXTERIOR 1. CONCRETE, PLASTER, STUUCCO, FIBRE CEMENT SIDING 2. MASONRY, BLOCK, BRICK 3. WOOD: ROUGH HHEWN, SMOOTH, HARDBOARD SIDING 4. METAL: FERROUS, IRON, STEEL 5. METAL: NON-FERROUS, GALVANISED, ALUMINIUM C. DECORATIVE SYSTEMS - INTERIOR 1. CONCRETE, PLASTER, MASONRY 2. DRYWALL PARTITIONS, GYPSUM CEILINGS 3. WOOD (NOT FURNITURE) 4. METAL: FERROUS, IRON, STEEL 5. METAL: NON-FERROUS, GALVANISED, ALUMINIUM D. WOOD SYSTEMS 1. INTERIOR FURNITURE & CABINETRY 2. INTERIOR DOORS, DOOR FRAMES, SKIRTING 3. EXTERIOR DOORS, DOOR FRAMES

3 INDEX E. PROTECTIVE COATING SYSTEMS 1. EPOXY COATING SYSTEM FOR ATMOSPHERIC SERVICE (WITH EPOXY PRIMER) 2. EPOXY COATING SYSTEM FOR ATMOSPHERIC SERVICE (WITH ZINC-RICH EPOXY PRIMER) 3. EPOXY / POLYURETHANE COATING SYSTEM FOR ATMOSPHERIC SERVICE (WITH EPOXY PRIMER) 4. EPOXY / POLYURETHANE COATING SYSTEM FOR ATMOSPHERIC SERVICE (WITH ZINC-RICH EPOXY PRIMER) 5. EPOXY COATING SYSTEM FOR GENERAL & POTABLE IMMERSION SERVICE (120 C / SELF-PRIMING) 6. COAL TAR EPOXY COATING SYSTEM FOR IMMERSION SERVICE 7. ALKYD ENAMEL COATING SYSTEM 8. CHLORINATED RUBBER COATING SYSTEM 9. HEAT RESISTANT COATING SYSTEM F. SPECIALIST APPLICATIONS 1. CONCRETE FLOOR EPOXY FLOOR PAINT 2. CONCRETE FLOOR EPOXY SELF-LEVELLING SCREED 3. CONCRETE FLOOR GENERAL FLOOR PAINT 4. TENNIS COURTS WATER BASED COATING 5. TENNIS COURTS SOLVENT BASED COATING 6. STONE TEXTURED COATING 7. THERMAL INSULATION 8. ROOF TILES 9. ANTI-CARBONATION COATING 10. CLEAR NATURAL STONE COATING G. GLOSSARY OF PAINT TERMS H. SURFACE PREPARATION STANDARDS I. DRYWALL FINISH SPECIFICATION

4 MASTER SPECIFICATION PART 1 GENERAL 1.01 SUMMARY A. Work includes complete preparation and finishing of all surfaces as indicated in the plans and specifications, except surfaces specifically excluded. B. Surfaces not to be painted unless otherwise specified: 1. Aluminium, copper, brass, stainless steel, nickel or chrome. 2. Finished hardware. 3. Acoustical ceilings. 4. Flooring. 5. Electrical fixtures and fittings. 6. Exterior concrete pavement. 7. Toilet compartments and accessories. 8. All items with complete factory finish, except mechanical and electrical items as specified herein. 9. Code required labels, equipment identification and performance rating plates. 10. Items in mechanical rooms. 11. Other surfaces as indicated on the drawings QUALITY ASSURANCE A. Work, equipment and materials must conform to all applicable local laws and regulations, including compliance with all air quality regulations applicable to the project location. Material safety data sheets for all materials in use and/or stored at the project site must be on the site at all times. B. Prepare sample wall areas as directed by the Architect. These areas will represent the standard of work for the project when approved DELIVERY, STORAGE AND HANDLING A. All materials shall be of the quality specified and shall be delivered to the project site in clean, original, unopened, labelled containers bearing the name, type of paint and, where necessary, the instructions for mixing and/or reducing. B. Store materials as designated. Storage area shall be kept neat and clean at all times. All damage to storage area and surrounding areas shall be cleaned and repaired to new condition. C. Rags, waste and combustible trash shall be stored in approved metal containers and removed daily from site. Take all necessary precautions to prevent fire. Copyright Omega Paints and Chemical Industries **All information contained herein is given in good faith and is based upon the experience and observations of Omega Paints. No warranty or guarantee is expressed or implied herein contact your Omega Paints Representative for more information concerning product warranties. A1

5 MASTER SPECIFICATION 1.04 PROJECT SITE CONDITIONS A. Measure moisture content of surfaces using an electronic moisture meter. Do not apply materials unless moisture contents are below the following maximums: 1. Plaster - 8 percent 2. Gypsum Board - 12 percent 3. Masonry, Concrete and Concrete Block - 12 percent 4. Wood - 14 percent B. Ensure surface temperatures fall within recommendations of the material manufacturer. C. Do not apply materials during fog, rain, mist or when inclement weather is expected within the drying time specified by Omega Paints. Also be aware of drying times during high-humidity conditions SEQUENCING AND SCHEDULING A. Back priming of all wood items to be set against concrete, masonry or plaster shall be performed, scheduled and coordinated to avoid delays in installation. B. Priming of walls scheduled to receive wall-covering shall be performed and scheduled to facilitate the drying time prior to wall-covering installation MAINTENANCE Provide Owner with unopened, clearly labelled containers of each type and colour of finish material installed for maintenance use and future reference. Quantities provided shall be a minimum of 1 litre of quantities actually applied. Copyright Omega Paints and Chemical Industries **All information contained herein is given in good faith and is based upon the experience and observations of Omega Paints. No warranty or guarantee is expressed or implied herein contact your Omega Paints Representative for more information concerning product warranties. A1

6 MASTER SPECIFICATION PART 2 PRODUCTS 2.01 OMEGA PAINTS Materials necessary to complete the painting and finishing schedule as specified herein are taken from the stock list of the Decorative & Industrial Coatings of Omega Paints & Chemical Industries, and are standards for kind, quality and function MATERIALS A. All materials shall conform with specified standards of quality and shall be of fresh stock, unused, free of defects and imperfections. Where two or more identical or compatible materials are required, they shall be of the same manufacturer, i.e. from Omega Paints. B. Materials shall be ready -mixed except field catalyzed coatings. Field tinting of materials will not be permitted. C. Materials shall have good flow, brushing characteristics and be free from streaks or sags when dry. D. Paint accessory materials such as putty, spackle and thinners shall be of the highest quality and fully compatible with the specified materials. PART 3 EXECUTION 3.01 EXAMINATION A. Thoroughly examine surfaces scheduled to be painted prior to commencement of work. Report in writing to the Architect any condition that may potentially affect proper application and appearance. Do not commence until such defects have been corrected. B. Where directed by the Architect, correct defects in surfaces which may adversely affect work of this section PROTECTION A. Protect unpainted surfaces, lawns, shrubbery and adjacent surfaces against paint and damage. Repair damage resulting from inadequate protection. B. Furnish sufficient drop cloths, shields, and protective equipment to prevent overspray or splatter from damaging surfaces not being painted. Copyright Omega Paints and Chemical Industries **All information contained herein is given in good faith and is based upon the experience and observations of Omega Paints. No warranty or guarantee is expressed or implied herein contact your Omega Paints Representative for more information concerning product warranties. A2 A3

7 MASTER SPECIFICATION C. Remove electrical plates, surface hardware and related fittings prior to commencement of work. Carefully store, clean and replace these items on completion of work in each area. D. Protect all surfaces, equipment and fixtures from damage resulting from use of fixed, movable and hanging scaffolding, planking and staging. Repair damage resulting from inadequate protection PREPARATION A. Concrete surfaces shall be dry, clean and free from efflorescence, encrustations and other foreign matter. Any glazed surface shall be slightly roughened or etched. Curing compounds, bond breakers, release agents and other coatings shall be removed with a light sandblast or high pressure power wash. B. Remove dirt, loose mortar, scale, powder and other foreign matter from concrete block surfaces which are to be painted or treated with a clear sealer. C. Remove mildew from affected surfaces with a solution of Tri-Sodium Phosphate and bleach. Rinse with clean water and allow to dry completely. D. Remove all oils and contamination from galvanized and aluminium surfaces scheduled to be painted by washing with a compliant solvent wash. E. Remove grease, rust, scale, dirt and dust from ferrous metal surfaces. Primer coat shall be applied not less than 30 minutes, nor more than 3 hours after preparation of surface. F. Sand and scrape shop primed metal to remove loose primer and rust. Touch -up bare, abraded and damaged areas with metal primer. Feather edges to make touch-up patches inconspicuous. G. Remove dust, grit and foreign matter f rom wood surfaces. Sand surfaces and dust clean. Spot prime knots, pitch streaks and sappy sections with a stain blocking primer where surfaces are to be painted. Fill nail holes, cracks and other defects after priming and spot prime repairs after patching material has fully cured. H. Plaster surfaces shall be dry and free from efflorescence, encrustations and foreign matter. Fill cracks, holes and imperfections, smoothing repairs to match adjacent texture. Allow repairs to fully cure before priming. I. Gypsum drywall shall be dusted clean and free from encrustations and other foreign matter. J. Existing surfaces to be recoated shall be thoroughly cleaned and de-glossed by sanding or other means prior to priming and painting. Patched and bare areas shall be spot primed with the same primer as specified for new work. K. Preparation of other surfaces shall be performed following specific recommendations of the coating manufacturer. Copyright Omega Paints and Chemical Industries **All information contained herein is given in good faith and is based upon the experience and observations of Omega Paints. No warranty or guarantee is expressed or implied herein contact your Omega Paints Representative for more information concerning product warranties. A3

8 MASTER SPECIFICATION 3.04 APPLICATION A. All work shall be executed in strict accordance with manufacturer s print directions for materials used. Use application equipment and techniques best suited for substrate and type of material being applied. B. All materials shall be applied smoothly without runs, sags, skips, holidays or other defects. C. Enamels and varnishes shall be lightly sanded between coats, dusted and wiped clean before recoating. D. Back prime all wood to be set against concrete, masonry or plaster. E. Allow each coat to dry completely before applying succeeding coat. F. Each coat of paint is to be slightly darker than preceding coat unless otherwise approved by the Architect. G. Number of coats specified are minimum that shall be applied. Additional coats shall be applied when undercoats, stains, cloudy or mottled conditions or other defects appear in the finish, until the paint film is of a uniform finish, colour and appearance INSPECTION All work shall be subject to approval by the Architect. Work not in compliance with specifications shall be properl y and promptly corrected PROTECTION A. Provide Wet Paint signs, barricades and other items required to protect newly finished surfaces. Remove temporary protective wrappings provided by others for protection of their work after completion of painting operations. B. At the completion of work of other trades, touch-up and repair all damaged and defaced surfaces. Copyright Omega Paints and Chemical Industries **All information contained herein is given in good faith and is based upon the experience and observations of Omega Paints. No warranty or guarantee is expressed or implied herein contact your Omega Paints Representative for more information concerning product warranties. A3

9 MASTER SPECIFICATION PART 4 PROFESSIONAL ADVICE STRUCTURAL TIMBER & WOOD 4.01 MOISTURE CONTENT Because of its cellular structure, wood is capable of holding large amounts of water. Correctly seasoned wood contains no excess moisture and should not be exposed to any contact with moisture or water before it is effectively protected by priming. Preferably the moisture content of wood, when painted, should be near to the level at which it will stabilise in service (usually per cent for interior woodwork and per cent for exterior woodwork). If woodwork is painted whilst the moisture content is high, the paintwork is likely to blister or flake and there is a likelihood of "wet rot" or fungal growth problems arising. This also applies to any previously painted woodwork where bare wood areas are exposed, due to failed paint coatings PRESERVATIVE TREATMENTS It is now common practice to factory apply treatments which prevent rotting or insect damage. Unless suppliers advise otherwise, it can be generally assumed that most of these treatments can be over-painted, providing moisture content is below 18 per cent and any residual solvent has evaporated UNPAINTED SOFTWOOD Ensure the wood is dry and free from oil, grease or other contaminants and dust off thoroughly. Apply a knotting solution to all knots and resinous areas, coating sufficiently beyond the defect to ensure efficient sealing. Liberally apply a suitable primer and brush well into the surface. Ensure the final coat is smooth and even PREVIOUSLY PAINTED SOFTWOOD Remove all defective paintwork, either by using a heat gun or paint remover. Ensure all traces of paint remover are thoroughly cleaned off. Rub down with fine waterproof abrasive paper and rinse thoroughly. Apply knotting solution and prime bare areas as for unpainted softwood UNPAINTED HARDWOOD Ensure that wood is dry and free from oil, grease and any other contamination. If any delay occurs between preparation and priming, it is a sensible precaution to wipe over the surface with White Spirit, due to the oily nature of some hardwoods. Dispose of cloths contaminated with White Spirit safely. Liberally apply a suitable primer. Ensure the final coat is smooth and even. Copyright Omega Paints and Chemical Industries **All information contained herein is given in good faith and is based upon the experience and observations of Omega Paints. No warranty or guarantee is expressed or implied herein contact your Omega Paints Representative for more information concerning product warranties. A4

10 MASTER SPECIFICATION 4.06 PREVIOUSLY PAINTED HARDWOOD Spot prime all open joints or other defects of the remaining paintwork. When dry, stop with a suitable hard stopper to prevent water penetration. Wash all remaining painted surfaces with water and detergent to remove any contamination. Rub down with fine waterproof abrasive paper and rinse thoroughly WOOD TREATED WITH CREOSOTE Painting over creosote is not recommended unless the creosote is well weathered. Prepare the surface ensuring it is dry and free from grease etc. As discolouration or bleeding is likely to occur, normal paint systems cannot be used. The surface should be sealed. Please contact the Omega Paints Tech nical Advisory Centre. PART 5 PROFESSIONAL ADVICE PLASTER, MASONRY & BUILDING BOARDS 5.01 MOISTURE CONTENT Walls of new buildings generally contain an amount of water and checks must be made to determine the degree of moisture present. If possible decoration should be delayed until excess moisture has sufficiently reduced. All surfaces, new or old, should also be checked for any indications of organic growths, eg. algae or fungi and where necessary sterilising methods must be used prior to painting PLASTER Remove any surface contamination and make good any cracks with an appropriate filler. Remove efflorescence by dry brushing as it appears and until it ceases. In order that effective drying takes place, ensure good ventilation. Normally priming should be carried out using a permeable emulsion paint. Liberal application of the primer is recommended to compensate for varying degrees of absorbency in the plaster UNPAINTED CONCRETE, BRICKWORK, CEMENT RENDERING, MASONRY Thoroughly brush down with a stiff brush to remove any dust or surface contamination. Avoid the inhalation of dust by wearing a suitable face mask. Repair defects and cracks with the appropriate materials. On porous or friable surfaces apply one coat of BONDING LIQUID or if the surface is very sound, apply finishing coats of the required coating directly over a specified primer. If finishing with a solvent-borne system, first prime with Alkali Resistant Primer. Copyright Omega Paints and Chemical Industries **All information contained herein is given in good faith and is based upon the experience and observations of Omega Paints. No warranty or guarantee is expressed or implied herein contact your Omega Paints Representative for more information concerning product warranties. A5

11 MASTER SPECIFICATION 5.04 PREVIOUSLY PAINTED CONCRETE, BRICKWORK, CEMENT RENDERING, MASONRY Repair all cracks and defects with a suitable filler. Wash down the remaining areas to remove dirt etc. Rub down previously gloss painted surfaces with waterproof abrasive paper to provide a "key" for subsequent coats, rinse with clean water and allow to dry. Prime any bare areas as suggested for the particular substrate CEMENTITIOUS BOARDS Observe the requirements of the current regulations and best practice codes before carrying out any work. Owing to the alkaline nature of cement, priming with Alkali Resistant Primer may be necessary. Priming may not be necessary if water-borne products are to be used. Where condensation is likely to occur in cavities or roof spaces, it is advisable to prime the backs of boards or sheets PLASTERBOARD & OTHER PAPER-FACED BOARD Plasterboard is extensively used in dry lining systems and jointing compounds, paint treatments etc should be as per manufacturer recommendations. Paper faced compressed straw slabs and wood based boards etc. do not normally present painting problems FIBRE BOARDS Hardboard does not provide any problems in painting. The surface does not need to be rubbed down but should be clean and free from grease. Prime as for untreated fibre insulating boards. Fibre insulating boards may be delivered to site pre-treated with flame retardant chemicals. If treated, prime with Alkali Resistant Primer. Where a solvent-borne finishing system is required, prime with Alkali Resistant Primer or Omega s Unikyd Primer Undercoat. In areas of condensation it may be necessary to paint the back of fibre insulating boards to minimise the risk of warping. Untreated boards can be painted with water-borne paints such as Omega s Unimatt Emulsion without the use of a primer. PART 6 PROFESSIONAL ADVICE METAL SURFACES 6.01 NEW GALVANISED IRON AND STEEL New galvanised surfaces are usually very smooth, making firm adhesion of paint difficult. If they are allowed to weather for some weeks this effectively etches the surface providing a more suitable substrate for painting. As it is sometimes necessary to apply primer direct to unweathered galvanised surfaces, care should be taken to remove all traces of oil and grease etc. Degreasing/etching with Omega s Mordant Solution to etch the galvanised substrate prior to the application of the primer is a necessity. Although not essential, it is recommended that the substrate be rinsed and allowed to dry after the application of the Mordant solution. Completely remove any oil or grease, etc. Apply a liberal coat of Omega s Mordant Solution allowing the solution to darken the metal. Wash off any surplus solution, allow to dry, then prime with a suitable primer from the Omega Paints range. Copyright Omega Paints and Chemical Industries **All information contained herein is given in good faith and is based upon the experience and observations of Omega Paints. No warranty or guarantee is expressed or implied herein contact your Omega Paints Representative for more information concerning product warranties. A6

12 MASTER SPECIFICATION 6.02 WEATHERED GALVANISED IRON AND STEEL Clean the surface to remove all traces of oil, grease and any other contamination. Remove any rust back to bare metal and treat with Mordant Solution as required. When dry, prime immediately with a suitable primer from the Omega Paints range NEW/UNPAINTED IRON AND STEEL Iron and steel require very thorough surface preparation and protection with a suitable and effective paint system. Poor preparation results in ineffective paint protection. The most effective preparatory methods for cleaning iron and steel are shot blasting, grit blasting, flame cleaning, impact needles and some forms of chemical cleaning. Hand cleaning methods are generally less effective and any scraping or wire brushing must be as thorough as possible. It is imperative that there should be no delay before priming clean iron and steel as exposure to the air can cause surface deterioration in a very short time. Priming within one hour of preparation is advised. Remove all oil, grease, by solvent cleaning methods. Remove any rust or millscale by the most effective means to produce a surface suitable for painting. Ensure the surface is dry and apply a coat of suitable primer, brushing well into the grooves and applying liberally to angles and edges PREVIOUSLY PAINTED IRON AND STEEL If the whole surface is in a poor condition, remove existing paint with a proprietary paint remover and prepare as for unpainted iron and steel. Generally sound paintwork should be checked for any loose or flaking material, which should be removed down to bright metal. Prime all bare metal immediately and allow to dry. Thoroughly degrease remaining areas prior to the application of any further coating PRE-PRIMED IRON AND STEEL Ensure that the primer has been correctly and effectively applied to the surface. Rectify any surface defects by cleaning and spot priming. If the surface has not been properly primed, or millscale and rust are present, remove by the most effective means and treat the surface as for unpainted iron and steel NON-FERROUS METALS: COPPER, BRASS & SIMILAR ALLOYS / ALUMINIUM & ALUMINIUM ALLOYS Copper and brass metal s are difficult to paint as no effective key is provided for paint adhesion. They are best left unpainted. If painting is essential, lightly abrade the surface with waterproof abrasive paper and clean down with White Spirit. Dispose of cloths contaminated with White Spirit safely. Prime with a suitable primer from the Omega Paints range. Aluminium has a smooth even surface, containing a white oxide layer; it is therefore necessary to prepare the surface to provide a sufficient key. Aluminium should always be kept from contact with any caustic solutions or substances. Prepare bare metal by lightly abrading with waterproof abrasive paper using White Spirit as a lubricant. Copyright Omega Paints and Chemical Industries **All information contained herein is given in good faith and is based upon the experience and observations of Omega Paints. No warranty or guarantee is expressed or implied herein contact your Omega Paints Representative for more information concerning product warranties. A6

13 EXTERIOR DECORATIVE SYSTEMS TABLE OF CONTENTS CONCRETE, PLASTER, STUCCO, FIBRE CEMENT SIDING MASONRY, BLOCK, BRICK WOOD: ROUGH SAWN, SMOOTH, HARDBOARD SIDING METAL: FERROUS, IRON, STEEL METAL: NON-FERROUS, GALVANISED, ALUMINIUM B

14 # FINISH GENERIC TYPE SPECIFICATION SCHEDULE A MATT ACRYLIC COPOLYMER 1 ST COAT: 2010 UNIMATT PRIMER 2 ND COAT: 4055 UNICRYL WEATHERPROOF SMOOTH 3 RD COAT: 4055 UNICRYL WEATHERPROOF SMOOTH B C SEMI GLOSS SEMI GLOSS POLYURETHANE 1 ST COAT: 7020 UNITHANE UNDERCOAT 2 ND COAT: 7025 UNITHANE 3 RD COAT: 7025 UNITHANE VINYL ACRYLIC 1 ST COAT: 2010 UNIMATT PRIMER 2 ND COAT: 4005 UNISILK EMULSION 3 RD COAT: 4005 UNISILK EMULSION D GLOSS ACRYLIC COPOLYMER 1 ST COAT: 2010 UNIMATT PRIMER 2 ND COAT: 4000 UNIGLOSS EMULSION 3 RD COAT: 4000 UNIGLOSS EMULSION E GLOSS POLYURETHANE 1 ST COAT: 7020 UNITHANE UNDERCOAT 2 ND COAT: 7002 UNITHANE ENAMEL 3 RD COAT: 7002 UNITHANE NAMEL F * G * H * I * EXTERIOR SYSTEMS CONCRETE, PLASTER, STUCCO, FIBRE CEMENT SIDING MATT SMOOTH TEXTURE MATT SMOOTH TEXTURE MATT MEDIUM TEXTURE MATT HEAVY TEXTURE MICA TEXTURE ACRYLIC COPOLYMER FINE TEXTURE ACRYLIC COPOLYMER ACRYLIC COPOLYMER WITH MICA ACRYLIC COPOLYMER WITH MARBLE AND MICA 1 ST COAT: 2010 UNIMATT PRIMER 2 ND COAT: 4010 UNITEX WEATHERPROOF 3 RD COAT: 4010 UNITEX WEATHERPROOF 1 ST COAT: 2012 UNIMATT PRIMER 2 ND COAT: 4012 UNITEX FINE 3 RD COAT: 4012 UNITEX FINE 1 ST COAT: 2010 UNIMATT PRIMER 2 ND COAT: 5015???? 3 RD COAT: 5015???? 1 ST COAT: 2010 UNIMATT PRIMER 2 ND COAT: 5020 HEAVY TEXTURE 3 RD COAT: 5020 HEAVY TEXTURE J MATT ACRYLIC COPOLYMER 1 ST COAT: 2610 UNICRYL SEALER 2 ND COAT: 4630 UNICRYL TEXTURE 3 RD COAT: 4630 UNICRYL TEXTURE 1. Substrate must be fully cured. Remove all releasing agents. Moisture and ph test should be conducted to determine readiness prior to coating. 2. *All Omega s texture coats are elastomeric i.e. heavy mil, highly flexible coatings designed to bridge minor surface cracks and provide a uniform, clean appearance; and are available in smooth, medium and coarse textures. For more details contact your Omega Representative. 3. Option: Where necessary and according to the condition of the substrate, a skim-coat of 6001 Omega Unifil Putty may be applied after the primer coat in the above specification schedules. Note that it is recommended to apply a further coat of the necessary primer after the skim-coat and before top-coating in these instances. 4. Option: * Specification numbers F to J above can be over-coated with any of the finishing coats in A to E above for a different appearance and functionality. 5. NB: In all instances please refer to the Master Specification for Preparation and Application Method. 6. NB: Please refer to the Data Sheets of each product above for more details. B1 Omega s Green product (Low Volatile Organic Compound emissions) Water-based products are printed in Green Solvent-based products are printed in Red

15 # FINISH GENERIC TYPE SPECIFICATION SCHEDULE A MATT ACRYLIC COPOLYMER 1 ST COAT: 2010 UNIMATT PRIMER 2 ND COAT: 4055 UNICRYL WEATHERPROOF SMOOTH 3 RD COAT: 4055 UNICRYL WEATHERPROOF SMOOTH B C SEMI GLOSS SEMI GLOSS POLYURETHANE 1 ST COAT: 7020 UNITHANE UNDERCOAT 2 ND COAT: 7025 UNITHANE 3 RD COAT: 7025 UNITHANE VINYL ACRYLIC 1 ST COAT: 2010 UNIMATT PRIMER 2 ND COAT: 4005 UNISILK EMULSION 3 RD COAT: 4005 UNISILK EMULSION D GLOSS ACRYLIC COPOLYMER 1 ST COAT: 2010 UNIMATT PRIMER 2 ND COAT: 4000 UNIGLOSS EMULSION 3 RD COAT: 4000 UNIGLOSS EMULSION E GLOSS POLYURETHANE 1 ST COAT: 7020 UNITHANE UNDERCOAT 2 ND COAT: 7002 UNITHANE ENAMEL 3 RD COAT: 7002 UNITHANE NAMEL F * G * H * I * EXTERIOR SYSTEMS MASONRY, BLOCK, BRICK MATT SMOOTH TEXTURE MATT SMOOTH TEXTURE MATT MEDIUM TEXTURE MATT HEAVY TEXTURE MICA TEXTURE ACRYLIC COPOLYMER FINE TEXTURE ACRYLIC COPOLYMER ACRYLIC COPOLYMER WITH MICA ACRYLIC COPOLYMER WITH MARBLE AND MICA 1 ST COAT: 2010 UNIMATT PRIMER 2 ND COAT: 4010 UNITEX WEATHERPROOF 3 RD COAT: 4010 UNITEX WEATHERPROOF 1 ST COAT: 2012 UNIMATT PRIMER 2 ND COAT: 4012 UNITEX FINE 3 RD COAT: 4012 UNITEX FINE 1 ST COAT: 2010 UNIMATT PRIMER 2 ND COAT: 5015???? 3 RD COAT: 5015???? 1 ST COAT: 2010 UNIMATT PRIMER 2 ND COAT: 5020 HEAVY TEXTURE 3 RD COAT: 5020 HEAVY TEXTURE J MATT ACRYLIC COPOLYMER 1 ST COAT: 2610 UNICRYL SEALER 2 ND COAT: 4630 UNICRYL TEXTURE 3 RD COAT: 4630 UNICRYL TEXTURE 1. It is recommended that in order to achieve a surface free of pin-holes, a skim-coat of 6001 Omega Unifil Putty must be applied after the primer coat in the above specification schedules. Note that it is recommended to apply a further coat of the necessary primer after the skim-coat and before top-coating in these instances. 2. *All Omega s texture coats are elastomeric i.e. heavy mil, highly flexible coatings designed to bridge minor surface cracks and provide a uniform, clean appearance; and are available in smooth, medium and coarse textures. For more details contact your Omega Representative. 3. Option: * Specification numbers F to I above can be over-coated with any of the finishing coats in A to E above for a different appearance and functionality. 4. NB: In all instances please refer to the Master Specification for Preparation and Application Method. 5. NB: Please refer to the Data Sheets of each product above for more details. B2 Omega s Green product (Low Volatile Organic Compound emissions) Water-based products are printed in Green Solvent-based products are printed in Red

16 # FINISH GENERIC TYPE SPECIFICATION SCHEDULE A GLOSS SINGLE PACK URETHANE 1 ST COAT: 7500 UNITHANE VARNISH GLOSS CLEAR ALKYD 2 ND COAT: 7500 UNITHANE VARNISH GLOSS 3 RD COAT: - B C D E F G EXTERIOR SYSTEMS WOOD: ROUGH SAWN, SMOOTH, HARDBOARD SIDING SEMI GLOSS CLEAR GLOSS CLEAR MATT CLEAR GLOSS PIGMENTED SEMI GLOSS PIGMENTED MATT PIGMENTED SINGLE PACK URETHANE ALKYD TWIN PACK POLYURETHANE ENAMEL TWIN PACK POLYURETHANE ENAMEL TWIN PACK POLYURETHANE ENAMEL TWIN PACK POLYURETHANE ENAMEL TWIN PACK POLYURETHANE ENAMEL 1 ST COAT: 7501 UNITHANE VARNISH SEMIGLOSS 2 ND COAT: 7501 UNITHANE VARNISH SEMIGLOSS 3 RD COAT: - 1 ST COAT: 7030 UNITHANE SANDING SEALER 2 ND COAT: UNITHANE ENAMEL CLEAR GLOSS 3 RD COAT: UNITHANE ENAMEL CLEAR GLOSS 1 ST COAT: 7030 UNITHANE SANDING SEALER 2 ND COAT: UNITHANE WOOD MATT 3 RD COAT: UNITHANE WOOD MATT 1 ST COAT: 7020 UNITHANE UNDERCOAT 2 ND COAT: 7002-xxxx UNITHANE ENAMEL GLOSS 3 RD COAT: 7002-xxxx UNITHANE ENAMEL GLOSS 1 ST COAT: 7020 UNITHANE UNDERCOAT 2 ND COAT: 7005-xxxx UNITHANE ENAMEL SEMIGLOSS 3 RD COAT: 7005-xxxx UNITHANE ENAMEL SEMIGLOSS 1 ST COAT: 7020 UNITHANE UNDERCOAT 2 ND COAT: 7025 UNITHANE 3 RD COAT: 7025 UNITHANE 1. Additional coats of primer may be required to ensure tannic stain blocking. 2. Spot-prime knots and sap streaks with un-thinned sealer/primer by brush first and allow to dry; sand and prime/seal as normal. 3. Moisture content in wood should be less than 14% prior to painting. Check with your timber supplier to ensure properly seasoned timber is used. Because of its cellular structure, wood is capable of holding large amounts of water. Correctly seasoned wood contains no excess moisture and should not be exposed to any contact with moisture or water before it is effectively protected by priming. Preferably the moisture content of wood, when painted, should be near to the level at which it will stabilise in service. If woodwork is painted whilst the moisture content is high, the paintwork is likely to blister or flake and there is a likelihood of "wet rot" or fungal growth problems arising. This also applies to any previously painted woodwork where bare wood areas are exposed, due to failed paint coatings. 4. It is now common practice to factory-apply PRESERVATIVE treatments which prevent rotting or insect damage. Unless suppliers advise otherwise, it can be generally assumed that most of these treatments can be over-painted, providing moisture content is below 18 per cent and any residual solvent has evaporated. 5. NB: In all instances please refer to the Master Specification for Preparation and Application Method. 6. NB: Please refer to the Data Sheets of each product above for more details. B3

17 EXTERIOR SYSTEMS METAL: FERROUS, IRON, STEEL # FINISH GENERIC TYPE SPECIFICATION SCHEDULE A GLOSS TWIN PACK 1 ST COAT: 2212 or 2222 UNIPOX ZINC PHOSPHATE or ZINC RICH PRIMER POLYURETHANE 2 ND COAT: 7002 UNITHANE ENAMEL 3 RD COAT: 7002 UNITHANE ENAMEL B GLOSS SINGLE PACK SYNTHETIC ENAMEL 1 ST COAT: 2114 or 2115 UNIKYD ZINC PHOSPHATE or RED OXIDE PRIMER 2 ND COAT: 4140 AUTO ENAMEL 3 RD COAT: 4140 AUTO ENAMEL C GLOSS ALKYD ENAMEL 1 ST COAT: 2114 or 2115 UNIKYD ZINC PHOSPHATE or RED OXIDE PRIMER 2 ND COAT: 4110 UNIKYD GLOSS 3 RD COAT: 4110 UNIKYD GLOSS 1. Additional coats of primer may be required on un-primed or shop-primed surfaces. Check for compatibility to shop primer prior to full finish coats. 2. Proper surface preparation is essential. 3. Test sample of complete painting system should be applied and checked for adhesion prior to commencement of the project. 4. NB: In all instances please refer to the Master Specification for Preparation and Application Method. 5. NB: Please refer to the Data Sheets of each product above for more details. B4

18 EXTERIOR SYSTEMS METAL: NON-FERROUS, GALVANISED, ALUMINIUM # FINISH GENERIC TYPE SPECIFICATION SCHEDULE A GLOSS TWIN PACK 1 ST COAT: 2212 or 2222 UNIPOX ZINC PHOSPHATE or ZINC RICH PRIMER POLYURETHANE 2 ND COAT: 7002 UNITHANE ENAMEL 3 RD COAT: 7002 UNITHANE ENAMEL B GLOSS SINGLE PACK SYNTHETIC ENAMEL 1 ST COAT: 2114 or 2115 UNIKYD ZINC PHOSPHATE or RED OXIDE PRIMER 2 ND COAT: 4140 AUTO ENAMEL 3 RD COAT: 4140 AUTO ENAMEL C GLOSS ALKYD ENAMEL 1 ST COAT: 2114 or 2115 UNIKYD ZINC PHOSPHATE or RED OXIDE PRIMER 2 ND COAT: 4110 UNIKYD GLOSS 3 RD COAT: 4110 UNIKYD GLOSS 1. All the above systems are suitable for non-ferrous metals, but note that only system A above is suitable for aluminium Mordant Solution must be applied to etch the galvanised substrate prior to the application of the primer. Although not essential, it is recommended that the substrate be rinsed and allowed to dry after the application of the Mordant solution. 3. Additional coats of primer may be required on un-primed or shop-primed surfaces. Check for compatibility to shop primer prior to full finish coats. 4. Proper surface preparation is essential. 5. Test sample of complete painting system should be applied and checked for adhesion prior to commencement of the project. 6. NB: In all instances please refer to the Master Specification for Preparation and Application Method. 7. NB: Please refer to the Data Sheets of each product above for more details. B5

19 INTERIOR DECORATIVE SYSTEMS TABLE OF CONTENTS CONCRETE, PLASTER, MASONRY DRYWALL PARTITIONS, GYPSUM CEILINGS WOOD METAL: FERROUS, IRON, STEEL METAL: NON-FERROUS, GALVANISED, ALUMINIUM C

20 # FINISH GENERIC TYPE SPECIFICATION SCHEDULE A MATT HIGH QUALITY ACRYLIC 1 ST COAT: 2010 UNIMATT PRIMER EMULSION 2 ND COAT: 4050 UNICRYL EMULSION 3 RD COAT: 4050 UNICRYL EMULSION B INTERIOR SYSTEMS CONCRETE, PLASTER, MASONRY SEMI MATT SUPERIOR VINYL ACRYLIC EMULSION C SILK SUPERIOR VINYL ACRYLIC EMULSION D GLOSS SUPERIOR VINYL ACRYLIC EMULSION 1 ST COAT: 2010 UNIMATT PRIMER 2 ND COAT: 4004 UNISATIN EMULSION 3 RD COAT: 4004 UNISATIN EMULSION 1 ST COAT: 2010 UNIMATT PRIMER 2 ND COAT: 4005 UNISILK EMULSION 3 RD COAT: 4005 UNISILK EMULSION 1 ST COAT: 2010 UNIMATT PRIMER 2 ND COAT: 4000 UNIGLOSS EMULSION 3 RD COAT: 4000 UNIGLOSS EMULSION 1. Substrate must be fully cured. Remove all releasing agents. Moisture and ph test should be conducted to determine readiness prior to coating. 2. Option: Where necessary and according to the condition of the substrate, a skim-coat of 6001 Omega Unifil Putty may be applied after the primer coat in the above specification schedules. Note that it is recommended to apply a further coat of the necessary primer after the skim-coat and before top-coating in these instances. 3. NB: In all instances please refer to the Master Specification for Preparation and Application Method. 4. NB: Please refer to the Data Sheets of each product above for more details. Omega s Green product (Low Volatile Organic Compound emissions) Water-based products are printed in Green C1 Solvent-based products are printed in Red

21 # FINISH GENERIC TYPE SPECIFICATION SCHEDULE A MATT HIGH QUALITY ACRYLIC 1 ST COAT: 2118/2119 UNIKYD ALKALI RESISTANT PRIMER EMULSION 2 ND COAT: 4050 UNICRYL EMULSION 3 RD COAT: 4050 UNICRYL EMULSION B INTERIOR SYSTEMS DRYWALL PARTITIONS, GYPSUM, CEILINGS SEMI MATT SUPERIOR VINYL ACRYLIC EMULSION C SILK SUPERIOR VINYL ACRYLIC EMULSION D GLOSS SUPERIOR VINYL ACRYLIC EMULSION 1 ST COAT: 2118/2119 UNIKYD ALKALI RESISTANT PRIMER 2 ND COAT: 4004 UNISATIN EMULSION 3 RD COAT: 4004 UNISATIN EMULSION 1 ST COAT: 2118/2119 UNIKYD ALKALI RESISTANT PRIMER 2 ND COAT: 4005 UNISILK EMULSION 3 RD COAT: 4005 UNISILK EMULSION 1 ST COAT: 2118/2119 UNIKYD ALKALI RESISTANT PRIMER 2 ND COAT: 4000 UNIGLOSS EMULSION 3 RD COAT: 4000 UNIGLOSS EMULSION 1. NB: In all instances please refer to the Master Specification for Preparation and Application Method. 2. NB: Please refer to the Data Sheets of each product above for more details. 3. NB: Please refer to the Drywall Finish Specification for comprehensive preparation and finishing guidelines. Omega s Green product (Low Volatile Organic Compound emissions) Water-based products are printed in Green C2 Solvent-based products are printed in Red

22 # FINISH GENERIC TYPE SPECIFICATION SCHEDULE A GLOSS SINGLE PACK URETHANE 1 ST COAT: 7500 UNITHANE VARNISH GLOSS CLEAR ALKYD VARNISH 2 ND COAT: 7500 UNITHANE VARNISH GLOSS 3 RD COAT: - B C D E SEMI GLOSS CLEAR GLOSS CLEAR GLOSS PIGMENTED MATT PIGMENTED SINGLE PACK URETHANE ALKYD VARNISH TWIN PACK POLYURETHANE ENAMEL TWIN PACK POLYURETHANE ENAMEL TWIN PACK POLYURETHANE ENAMEL 1 ST COAT: 7505 UNIKYD POLYURETHANE SEMIGLOSS VARNISH 2 ND COAT: 7505 UNIKYD POLYURETHANE SEMIGLOSS VARNISH 3 RD COAT: - 1 ST COAT: 7510 UNITHANE SANDING SEALER 2 ND COAT: 7520 UNITHANE CLEAR GLOSS 3 RD COAT: 7520 UNITHANE CLEAR GLOSS 1 ST COAT: 7540 UNITHANE PRIMER 2 ND COAT: 7550 UNITHANE ENAMEL GLOSS 3 RD COAT: 7550 UNITHANE ENAMEL GLOSS 1 ST COAT: 7020 UNITHANE UNDERCOAT 2 ND COAT: 7560 UNITHANE ENAMEL MATT 3 RD COAT: 7560 UNITHANE ENAMEL MATT F GLOSS SUPERIOR ALKYD ENAMEL 1 ST COAT: 2110 UNIKYD UNDERCOAT 2 ND COAT: 4110/4112 UNIKYD GLOSS 3 RD COAT: 4110/4112 UNIKYD GLOSS G EGGSHELL SUPERIOR ALKYD ENAMEL 1 ST COAT: 2110 UNIKYD UNDERCOAT 2 ND COAT: 4100/4102 UNIKYD EGGSHELL 3 RD COAT: 4100/4102 UNIKYD EGGSHELL H SILK SUPERIOR VINYL ACRYLIC EMULSION I GLOSS SUPERIOR VINYL ACRYLIC EMULSION INTERIOR SYSTEMS WOOD: SMOOTH (NOT FURNITURE*) 1 ST COAT: 2150/2152 UNIKYD WOOD PRIMER 2 ND COAT: 4005 UNISILK EMULSION 3 RD COAT: 4005 UNISILK EMULSION 1 ST COAT: 2150/2152 UNIKYD WOOD PRIMER 2 ND COAT: 4000 UNIGLOSS EMULSION 3 RD COAT: 4000 UNIGLOSS EMULSION 1. Interior wooden surfaces can be stained with 7300 OMEGA UNISTAIN prior to top-coating with 7500/7505 OMEGA UNITHANE VARNISH. 2. Additional coats of primer may be required to e nsure tannic stain blocking. 3. Spot-prime knots and sap streaks with un-thinned sealer/primer by brush first and allow to dry; sand and prime/seal as normal. 4. Moisture content in wood should be less than 14% prior to painting. Check with your timber supplier to ensure properly seasoned timber is used. Because of its cellular structure, wood is capable of holding large amounts of water. Correctly seasoned wood contains no excess moisture and should not be exposed to any contact with moisture or water before it is effectively protected by priming. Preferably the moisture content of wood, when painted, should be near to the level at which it will stabilise in service. If woodwork is painted whilst the moisture content is high, the paintwork is likely to blister or flake and there is a likelihood of "wet rot" or fungal growth problems arising. This also applies to any previously painted woodwork where bare wood areas are exposed, due to failed paint coatings. 5. It is now common practice to factory-apply PRESERVATIVE treatments which prevent rotting or insect damage. Unless suppliers advise otherwise, it can be generally assumed that most of these treatments can be over-painted, providing moisture content is below 18 per cent and any residual solvent has evaporated. 6. NB: In all instances please refer to the Master Specification for Preparation and Application Method. 7. NB: Please refer to the Data Sheets of each product above for more details. 8. *For the finishing of Furniture please refer relevant section. Omega s Green product (Low Volatile Organic Compound emissions) Water-based products are printed in Green C3 Solvent-based products are printed in Red

23 INTERIOR SYSTEMS METAL: FERROUS, IRON, STEEL # FINISH GENERIC TYPE SPECIFICATION SCHEDULE A GLOSS TWIN PACK 1 ST COAT: 2212 or 2222 UNIPOX ZINC PHOSPHATE or ZINC RICH PRIMER POLYURETHANE 2 ND COAT: 7002 UNITHANE ENAMEL 3 RD COAT: 7002 UNITHANE ENAMEL B GLOSS SINGLE PACK SYNTHETIC ENAMEL 1 ST COAT: 2114 or 2115 UNIKYD ZINC PHOSPHATE or RED OXIDE PRIMER 2 ND COAT: 4140 AUTO ENAMEL 3 RD COAT: 4140 AUTO ENAMEL C GLOSS ALKYD ENAMEL 1 ST COAT: 2114 or 2115 UNIKYD ZINC PHOSPHATE or RED OXIDE PRIMER 2 ND COAT: 4110 UNIKYD GLOSS 3 RD COAT: 4110 UNIKYD GLOSS 1. Additional coats of primer may be required on un-primed or shop-primed surfaces. Check for compatibility to shop primer prior to full finish coats. 2. Proper surface preparation is essential. 3. Test sample of complete painting system should be applied and checked for adhesion prior to commencement of the project. 4. NB: In all instances please refer to the Master Specification for Preparation and Application Method. 5. NB: Please refer to the Data Sheets of each product above for more details. C4

24 INTERIOR SYSTEMS METAL: NON-FERROUS, GALVANISED, ALUMINIUM # FINISH GENERIC TYPE SPECIFICATION SCHEDULE A GLOSS TWIN PACK 1 ST COAT: 2212 or 2222 UNIPOX ZINC PHOSPHATE or ZINC RICH PRIMER POLYURETHANE 2 ND COAT: 7002 UNITHANE ENAMEL 3 RD COAT: 7002 UNITHANE ENAMEL B GLOSS SINGLE PACK SYNTHETIC ENAMEL 1 ST COAT: 2114 or 2115 UNIKYD ZINC PHOSPHATE or RED OXIDE PRIMER 2 ND COAT: 4140 AUTO ENAMEL 3 RD COAT: 4140 AUTO ENAMEL C GLOSS ALKYD ENAMEL 1 ST COAT: 2114 or 2115 UNIKYD ZINC PHOSPHATE or RED OXIDE PRIMER 2 ND COAT: 4110 UNIKYD GLOSS 3 RD COAT: 4110 UNIKYD GLOSS 1. All the above systems are suitable for non-ferrous metals, but note that only system A above is suitable for aluminium Mordant Solution must be applied to etch the galvanised substrate prior to the application of the primer. Although not essential, it is recommended that the substrate be rinsed and allowed to dry after the application of the Mordant solution. 3. Additional coats of primer may be required on un-primed or shop-primed surfaces. Check for compatibility to shop primer prior to full finish coats. 4. Proper surface preparation is essential. 5. Test sample of complete painting system should be applied and checked for adhesion prior to commencement of the project. 6. NB: In all instances please refer to the Master Specification for Preparation and Application Method. 7. NB: Please refer to th e Data Sheets of each product above for more details. C5

25 WOOD SYSTEMS TABLE OF CONTENTS INTERIOR FURNITURE AND CABINETRY ACID-CATALYZED LACQUER NITROCELLULOSE LACQUER POLYURETHANE LACQUER INTERIOR DOORS, DOOR FRAMES, SKIRTING ACID-CATALYZED LACQUER NITROCELLULOSE LACQUER POLYURETHANE LACQUER EXTERIOR DOORS, DOOR FRAMES POLYURETHANE VARNISH POLYURETHANE ENAMEL D

26 # FINISH GENERIC TYPE SPECIFICATION SCHEDULE A CLEAR TWIN-PACK ACID- 1 ST COAT: TBA UNICURE SANDING SEALER GLOSS CATALYZED REACTION 2 ND COAT: UNICURE LACQUER GLOSS LACQUER 3 RD COAT: UNICURE LACQUER GLOSS B SEMI GLOSS CLEAR TWIN-PACK ACID- CATALYZED REACTION LACQUER C FLAT CLEAR TWIN-PACK ACID- CATALYZED REACTION LACQUER D E WOOD SYSTEMS INTERIOR FURNITURE & CABINETRY A.C. PIGMENTED GLOSS PIGMENTED MATT TWIN-PACK ACID- CATALYZED REACTION LACQUER TWIN-PACK ACID- CATALYZED REACTION LACQUER 1 ST COAT: TBA UNICURE SANDING SEALER 2 ND COAT: UNICURE LACQUER SEMI GLOSS 3 RD COAT: UNICURE LACQUER SEMI GLOSS 1 ST COAT: TBA UNICURE SANDING SEALER 2 ND COAT: UNICURE LACQUER FLAT 3 RD COAT: UNICURE LACQUER FLAT 1 ST COAT: TBA UNICURE SANDING SEALER 2 ND COAT: 4180 UNICURE LACQUER 3 RD COAT: 4180 UNICURE LACQUER 1 ST COAT: TBA UNICURE SANDING SEALER 2 ND COAT: 4185 UNICURE LACQUER MATT 3 RD COAT: 4185 UNICURE LACQUER MATT 1. Glue: Always use a quality PVA Wood Glue that dries to clear this will avoid unsightly glue lines on the wood after the application of the clearcoat. Use Omega 6500 PVA Wood Glue. 2. Stain: Omega s clear NC lacquers can be used over the Omega range of penetrating stains which are directly applied to the timber. Use Omega 7300 Unistain, in the colour of choice. 3. Filling: Use Omega 6300 NC Filler with a putty-knife or spatula to fill holes and other imperfections in the surface prior to sanding. 4. Sanding: Recommended simplified procedure is as follows: Final sanding prior to application of sealer/primer coat use 150 grit (softwood) to 180 grit (hardwood). Sanding after application of sealer/primer coat use 220 grit (softwood) to 240 grit (hardwood). Final sanding prior to application of final topcoat use 240 grit (softwood) to 260 grit (hardwood). More experienced polishers can achieve superior finishes using finer grits of 300 to 360 grit prior to final topcoat application. 5. NB: In all instances please refer to the Master Specification for Preparation and Application Method. 6. NB: Please refer to the Data Sheets of each product above for more details. 7. What is Acid-Catalyzed Lacquer? The development of catalyzed lacquers was driven by market demand from the production furniture and cabinet industries. They wanted a product with the same look and ease of application afforded by nitrocellulose lacquer, but one that would also offer much better water, chemical, and abrasion resistance. The coatings industry put their chemists to work and responded by creating catalyzed lacquers, which are hybrid reactive finishes that cure chemically, not solely through the evaporation of solvents. Catalyzed lacquers contain some nitrocellulose resins, but the addition of urea resins makes these products much more durable. The chemical cure is initiated when an acid catalyst is added to the mixture. Always use the acid and amount recommended and follow the mixing directions to achieve optimum results. There are many types of acids that can be used to catalyze alkyd and amino resins, and Omega has specified the best one for the particular alkyd and amino resin. Also, the amount of acid used is vital as the proper amount will produce a durable finish over a prolonged life, while too little or too much acid will decrease the durability and life of the coating D1

27 # FINISH GENERIC TYPE SPECIFICATION SCHEDULE A CLEAR SINGLE PACK 1 ST COAT: 7305/7307 UNICEL SANDING SEALER / HI-SOLIDS GLOSS NITROCELLULOSE LACQUER 2 ND COAT: 7310 UNICEL CLEAR GLOSS 3 RD COAT: 7310 UNICEL CLEAR GLOSS B CLEAR FLAT SINGLE PACK NITROCELLULOSE LACQUER C D WOOD SYSTEMS INTERIOR FURNITURE & CABINETRY N.C. PIGMENTED GLOSS PIGMENTED MATT SINGLE PACK NITROCELLULOSE LACQUER SINGLE PACK NITROCELLULOSE LACQUER 1 ST COAT: 7305/7307 UNICEL SANDING SEALER / HI-SOLIDS 2 ND COAT: 7320 UNICEL CLEAR FLAT 3 RD COAT: 7320 UNICEL CLEAR FLAT 1 ST COAT: 2310 UNICEL NC PRIMER WHITE 2 ND COAT: 4300 UNICEL FINISH GLOSS 3 RD COAT: 4300 UNICEL FINISH GLOSS 1 ST COAT: 2310 UNICEL NC PRIMER WHITE 2 ND COAT: 4310 UNICEL FINISH MATT 3 RD COAT: 4310 UNICEL FINISH MATT 1. Glue: Always use a quality PVA Wood Glue that dries to clear this will avoid unsightly glue lines on the wood after the application of the clearcoat. Use Omega 6500 PVA Wood Glue. 2. Stain: Omega s clear NC lacquers can be used over the Omega range of penetrating stains which are directly applied to the timber. Use Omega 7300 Unistain, in the colour of choi ce. 3. Filling: Use Omega 6300 NC Filler with a putty-knife or spatula to fill holes and other imperfections in the surface prior to sanding. 4. Sanding: Recommended simplified procedure is as follows: Final sanding prior to application of sealer/primer coat use 150 grit (softwood) to 180 grit (hardwood). Sanding after application of sealer/primer coat use 220 grit (softwood) to 240 grit (hardwood). Final sanding prior to application of final topcoat use 240 grit (softwood) to 260 grit (hardwood). More experienced polishers can achieve superior finishes using finer grits of 300 to 360 grit prior to final topcoat application. 5. NB: In all instances please refer to the Master Specification for Preparation and Application Method. 6. NB: Please refer to the Data Sheets of each product above for more details. 7. What is Nitrocellulose Lacquer? Nitrocellulose lacquer is made by mixing fast-drying solvents with wood and cotton pulp containing cellulose that has been broken down by nitric and sulphuric acid. Edmund Flaherty, a chemist working for the DuPont Chemical Company, is credited for inventing nitrocellulose lacquer in It was quickly picked up by Henry Ford for his mass-produced automobiles because finished cars could come off the assembly line faster. Not long afterward, nitrocellulose lacquer replaced shellac and oil-based varnishes and became the preferred finish and the industry standard for furniture and cabinet manufacturers. The benefits for large and small production shops are considerable: nitrocellulose lacquer is relatively inexpensive and dries quickly. The cured resins provide a reasonably good protective layer of film over the wood. After the hard film cures, it rubs out well; and its slightly amber colour enhances both light and dark woods with a warm, attractive patina. Also, because it is an evaporative finish, each new coat of lacquer blends into all the previous coats, making it easy to repair. The disadvantages to using nitrocellulose lacquer are also notable. The film yellows as it ages, and it can eventually shrink to the point of causing cracks (often called crazing) to form in the surface. Although some versions are made and sold as brushing lacquers, you can obtain much better results by spraying it on; but the overspray is highly flammable. (The same ingredients that go into nitrocellulose lacquers are also used in the manufacture of some explosives.) Because it dries so quickly, when applied under conditions of high humidity, the lacquer film can trap condensed moisture and cause the finish film to appear cloudy -- a problem referred to as blushing. You can overcome that finishing obstacle by adding a slowerdrying thinner, called a retarder, which allows the moisture to escape before it gets trapped in the film. D1.a