Report Crossover test of Balloxy HB Light on Cathozinc Shop Primer Type-2 (SP-09) Jotun AS

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1 Report Crossover test of Balloxy HB Light on Cathozinc Shop Primer Type-2 (SP-09) Jotun AS Report No./DNV Reg. No.: / 12CPRAD-12 Rev. No. 02,

3 Table of Contents 1 INTRODUCTION SCOPE OF WORK WORK CARRIED OUT PRIOR TO EXPOSURE Identification Surface preparation Application Application procedure Test panel Dry film thickness Pinhole detection EXPOSURE TESTS CARRIED OUT AFTER EXPOSURE RESULTS Product identification Results from examinations Adhesion tests Evaluation of test results CONCLUSION REFERENCES... 8 Appendix A Photo documentation Appendix B Weathering data Appendix C Infrared spectra Page ii of ii

4 1 INTRODUCTION The coating system, Balloxy HB Light applied on a Cathozinc Shop Primer Type-2 (SP-09) zinc shop primed steel panel, has been tested in accordance with the IMO Performance Standard for Protective Coatings /1/, section 1.7 of appendix 1 to annex 1, without wave movement (cross over test). 2 SCOPE OF WORK The following work and tests have been performed by Jotun AS at Jotun AS test laboratory in Sandefjord, Norway, under the supervision of a representative from DNV: Surface preparation of test panel Application processes as documented in Table 3 Two months outdoor weathering of the shop primed test panel. The following work and tests have been performed by DNV at the DNV Energy laboratory in Bergen, Norway: Identification of the coating system by means of determination of density and infrared (IR) spectra Total dry film thickness measurements and pinhole detection on the test panel before testing 180 days exposure in an exposure tank without wave movement Evaluation of testing performed after exposure, including visual check for rust and blisters, cathodic protection and adhesion measurements. 3 WORK CARRIED OUT PRIOR TO EXPOSURE 3.1 Identification The coating system was identified by infrared scanning (by means of a Nicole Protégé 460 FTIR Spectrometer) and by determination of density (according to ISO /2/ by means of an Erichsen Mod. 290/1 Pyknometer). The results from the identification are given in Table 5 and Appendix C. Page 1 of 8

5 3.2 Surface preparation Surface preparation was carried out according to the data given in Table 1. Table 1 Surface preparation data* Surface preparation method Blast cleaning, April 2009 Blasting standard Abrasive used Sa 2 ½ AlSil A3 Roughness [µm] Rmax : Water soluble salts 16 mg/m 2 (average of three measurements. Standard used: ISO 8502 The Bresle Method) Dust and abrasive inclusions No dust or abrasive inclusions was detected by visual examination * Surface preparation performed by Jotun AS. Data in Table 1 is provided by Jotun AS. 3.3 Application Application procedure Cathozinc Shop Primer Type-2 (SP-09) was applied on a test panel blast cleaned with AlSil A3. The shop primed test panel was weathered outdoors for two months. Weathering details are presented in Table 2 and Appendix B. Table 2 Secondary surface preparation and weathering details * Weathering site (outdoor) Jotun s production site in Sandefjord, Norway Start of weathering Stop of weathering Preparation of test panel after weathering * Data in Table 1 is provided by Jotun AS. Low pressure washing Two coats of Balloxy HB Light were applied on the shop primed and weathered test panel. Application data are given in Table 3. Page 2 of 8

6 Table 3 Application data Paint system Manufacturer Application data Shop primer 1 st coat 2 nd coat Cathozinc Shop Primer Type-2 (SP-09) Yung Chi Paint & Varnish MFG Co Balloxy HB Light, green Jotun AS Balloxy HB Light, grey Date Time 09:45 09:40 09:55 Batch No. Paste: A Base: EE A Base: EE A Liquid: F Hardener: FR Hardener: FR Thinner name (if used) N/A Jotun Thinner No.17 Jotun Thinner No.17 Batch No. thinner (if used) N/A N/A N/A Equipment used (pressure ratio) Wiwa (60:1) Wiwa (60:1) Wiwa (60:1) Air pressure at nozzle [bar] Size nozzle [inches] Fan width [º] Paste : Liquid = Base: Hardener = Base:Hardener= Mix. ratio by weight 100 : : : 14 Volume solid [%] Wet film thickness [µm] Dry film thickness [µm] Confer Table 4 Thinner [%] Air temperature [ºC] Humidity [% RH] Steel temperature [ºC] Dew point [ºC] Present at shop primer application: Reidar J. Pettersen, Terje Aamodt, Cecilie Clasen and Odd Arntzen Jotun AS. Vidar Kvamme Det Norske Veritas. Present at coating application: Reidar J. Pettersen, Odd Arntzen, Cecilie Clasen and Terje Aamodt Jotun AS. Vidar Kvamme Det Norske Veritas. Page 3 of 8

7 3.3.2 Test panel The panel was coded as shown in Figure 1. EP JCO34 Anode Holiday Figure 1 Test panel 3.4 Dry film thickness The dry film thickness (DFT) measurements were carried out by using a calibrated PosiTector A template, as shown in Figure 2, was used for the measurements. The results from the measurements are given in Table Figure 2 DFT measurement locations Page 4 of 8

8 Table 4 Results from the DFT measurements, values given in µm (20 µm subtracted for shop primer) Measuring point Total Max 400 Min 288 Average 357 StDev Pinhole detection Pinhole detection was performed on the coated test panel before exposure. The detection was carried out by means of an Elcometer 269 Pinhole detector at 90 volts. The result from the pinhole detection is shown in Table 8. 4 EXPOSURE The exposure was carried out according to the IMO Performance Standard for Protective Coatings /1/. The exposure was started and terminated TESTS CARRIED OUT AFTER EXPOSURE Visual inspection for rust and blisters, adhesion measurements and evaluation of cathodic disbondment were carried out according to specifications and standards referred to in the IMO Performance Standard for Protective Coatings /1/. The results are shown in Table 6 and 7. Page 5 of 8

9 6 RESULTS 6.1 Product identification The results from the product identification are given in Table 5. Table 5 Results of analyses (Product identification) Product Batch no. IR identification Cathozinc Shop Primer Type-2 (SP-09) Comp. A (Paste) Cathozinc Shop Primer Type-2 (SP-09) Comp. B (Liquid) Density [g/cm 3 ] A Confer Appendix C 1.93 F Confer Appendix C 0.87 Balloxy HB Light, Comp. A (Base) EE A Confer Appendix C 1.50 Balloxy HB Light, Comp. B (Hardener, 1 st coat), green Balloxy HB Light, Comp. B (Hardener, 2 nd coat), grey FR FR Confer Appendix C 1.01 Confer Appendix C Results from examinations The results from the examination of the coated test panel are schematically given in Table 6 and Table 7. Pictures of the panel after exposure are enclosed in Appendix A. Page 6 of 8

10 Table 6 Results of testing Cathodic disbondment Blisters / rust Zinc anode [mm] 1) weight loss [g] Current demand [ma/m 2 ] 2) ) Assess loss of adhesion at the artificial holiday by using a sharp knife to make two cuts through the coating to the substrates, intersection at the holiday. With the point of the knife, attempt to lift and peel back the coating from around the holiday. Record whether the adhesion of the coating to the substrate has been reduced and the approximate distance, in millimetres, that the coating can be peeled. (From ISO 15711:2003 /3/) Additionally IACS interpretation of IMO PSPC: Repeat the cutting and lifting all around the artificial holiday to find the maximum loss of adhesion. Disbonding from artificial holiday can be either loss of adhesion to the steel substrate or between the shop primer and the epoxy coating and shall be less than 8 mm for epoxy based systems to be acceptable (compatibility test). Cohesive adhesion failure in the shop primer is not to be included as part of the loss of adhesion. (From IACS Model Report for IMO Resolution MSC.215(82) Annex 1 Test Procedures for Coating Qualification, Section Crossover Test, No102 (June 2008) /4/) 2) Exposure time: 120 days (Total time 180 days. Each cycle consists of 2 weeks seawater immersion and 1 week exposure in relative high humidity air). Utilisation factor: 0.8 Consumption rate for Zn-anodes: 11.3 kg/a year Adhesion tests Adhesion tests were carried out on the test panel by using a DeFlesko PosiTest AT adhesion tester. Dollies with 20 mm diameter were used. The coating surface and dollies were grinded carefully with FEPA P#320 SiC paper and rinsed with technical alcohol. The dollies were attached to the coating using 3M DP410 epoxy based glue. The curing of the glue was carried out according to manufacturer s recommendations. A hole saw was used to cut carefully through the coating down to bare steel before pulling of the dollies. Values from the test are presented in Table 7. Table 7 Results of the Pull-off adhesion Test Test no. Adhesion strength [MPa] Fracture [%] B/C, 70C B/C, 15C, 5-/Y B/C, 95C, 2D B/C, 54C, 1D B/C, 94C, 1C/D B/C, 10C, 3D, 2-/Y Average 7.4 Total adhesive: 43, Total cohesive: 57 A/B: Fracture between the steel surface and the shop primer B: Fracture in the shop primer B/C: Fracture between the shop primer and the first coat C: Fracture in the first coat C/D: Fracture between the first and second coat D: Fracture in the second coat -/Y: Fracture between the second coat and the glue Page 7 of 8

11 6.3 Evaluation of test results Evaluation of the test results are given in Table 8. Table 8 Results from evaluation of the coated test samples Test parameter Acceptance criteria for epoxy based systems on shop primed and 2 months weathered substrate Test results Passed / failed Pinholes No pinholes 0 Passed Blisters and rust No blisters or rust 0 Passed Adhesion values average [MPa] 1) >3.5 adhesive failure 3.0 cohesive failure 7.4 Passed Cathodic disbondment [mm] 2) < Passed Current demand [ma/m 2 ] 2) < Passed 1) 2) Confer Table 7 for details Confer Table 6 for details 7 CONCLUSION The results from the testing show that Balloxy HB Light from Jotun AS applied on Cathozinc Shop Primer Type-2 (SP-09) from Yung Chi Paint & Varnish MFG Co., Ltd has passed all the test requirements given in the IMO Performance Standard for Protective Coatings /1/. 8 REFERENCES /1/ MSC 215 (82): 2006 Performance Standard for Protective Coatings for dedicated sea water ballast tanks in all types of ships and double-side skin spaces of bulk carriers /2/ ISO : 1997 Determination of density Part 1: Pyknometer method /3/ ISO 15711: 2003 Paints and varnishes Determination of resistance to cathodic disbonding of coatings exposed to sea water /4/ IACS Model Report for IMO Resolution MSC.215(82) Annex 1 Test Procedures for Coating Qualification, Section Crossover Test, No102 (June 2008) - o0o - Page 8 of 8

12 APPENDIX A PHOTO DOCUMENTATION Page A1 of A3

13 Figure A1: The cathodic disbondment after exposure Crossover panel JCO34 Figure A2: Adhesion test no. 1 on the crossover panel JCO34 after exposure Figure A3: Adhesion test no. 2 on the crossover panel JCO34 after exposure Page A2 of A3

14 Figure A4: Adhesion test no. 3 on the crossover panel JCO34 after exposure Figure A5: Adhesion test no. 4 on the crossover panel JCO34 after exposure Figure A6: Adhesion test no. 5 on the crossover panel JCO34 after exposure Figure A7: Adhesion test no. 6 on the crossover panel JCO34 after exposure - o0o - Page A3 of A3

15 APPENDIX B WEATHERING DATA Page B1 of B2

Figure B1: The weathering conditions during the exposure, May 2009 Figure B2: The weathering conditions during the exposure, June 2009 All data in Figures B1-B2 is provided by Meteorologisk institutt.

16 Figure B1: The weathering conditions during the exposure, May 2009 Figure B2: The weathering conditions during the exposure, June 2009 All data in Figures B1-B2 is provided by Meteorologisk institutt. The weather station Sandefjord that is collecting the data of precipitation, does not record temperature. The weather station Melsom collecting the temperature data is located approximately 13 km from Sandefjord. - o0o - Page B2 of B2

17 APPENDIX C INFRARED SPECTRA Page C1 of C3

18 Figure C1: Infrared spectra of Cathozinc Shop Primer Type-2 (SP-09), binder component of paste (batch no.: A ) Figure C2: Infrared spectra of Cathozinc Shop Primer Type-2 (SP-09), liquid (batch no.: F ) Figure C3: Infrared spectra of Balloxy HB Light, binder component of base (batch no.: EE A) Page C2 of C3

19 Figure C5: Infrared spectra of Balloxy HB Light, hardener (green) of the first coat (batch no.: FR ) Figure C6: Infrared spectra of Balloxy HB Light, hardener (grey) of the second coat (batch no.: FR ) - o0o - Page C3 of C3

20 DNV Energy DNV Energy is a leading professional service provider in safeguarding and improving business performance, assisting energy companies along the entire value chain from concept selection through exploration, production, transportation, refining and distribution. Our broad expertise covers Asset Risk & Operations Management, Enterprise Risk Management; IT Risk Management; Offshore Classification; Safety, Health and Environmental Risk Management; Technology Qualification; and Verification. DNV Energy Regional Offices: Americas and West Africa Det Norske Veritas Ltda Rua Sete de Setembro 111/12 Floor Rio de Janeiro Brazil Phone: Nordic and Eurasia Det Norske Veritas AS Veritasveien 1 N-1322 Hovik Norway Phone: Asia and Middle East Det Norske Veritas Sdn Bhd 24th Floor, Menara Weld Jalan Raja Chulan Kuala Lumpur Phone: Offshore Class and Inspection Det Norske Veritas AS Veritasveien 1 N-1322 Hovik Norway Phone: Europe and North Africa Det Norske Veritas Ltd Palace House 3 Cathedral Street London SE1 9DE United Kingdom Phone: Cleaner Energy & Utilities Det Norske Veritas AS Veritasveien 1 N-1322 Hovik Norway Phone: o0o - Final Page

Report Crossover test of Jotacote Universal 80 on Cathozinc Shop Primer Type-2 (SP-09) Jotun AS

Report Crossover test of Jotacote Universal 80 on Cathozinc Shop Primer Type-2 (SP-09) Jotun AS Report No./DNV Reg. No.: 2010-5153 / 12CPRAD-10 Rev. No. 01, 2010-05-07 Table of Contents 1 INTRODUCTION...