BASF Architectural Coatings Developing and Formulating for Next Generation Durability Deven Shah, Technical Account Manager FORMULATION BRAND SUSTAINABILITY SERVICES INTEGRITY INNOVATION
Acronal EDGE 4247 X Exterior Binder - Paint and Primer in one Performance
Outline of the Presentation Introduction Factors controlling exterior coatings performance New binder development and performance Summary 3
Key Factors - Durability for Exterior Paints Surfactant Leaching Resistance Dirt-pickup Resistance Grain Cracking Efflorescence Resistance Tannin Stains Blocking Adhesion on multiple substrates 4
Leaching and Grain Cracking on Exterior Paints Surfactant leaching on a wall Good quality paint Inferior quality paint Good quality paint No Cracks Cracks in Cedar wood No Cracks Water soluble materials Film formation Encapsulation of water soluble materials Early water resistance Crosslinking Film Hardness and elasticity Coalescence and Film Formation 5
Tannin Blocking, Efflorescence Resistance Film formation kinetics Hydrophilic-hydrophobic balance Water soluble materials Encapsulation within the coatings matrix Polyphenols Wooden Substrates Adhesion Migration of salt to the surface of Concrete, Stucco, Masonry 6
New Generation Binder Acronal EDGE 4247 X Hydrophobic-hydrophilic balance of the binder monomer combination and particle stabilization package Particle morphology Good film formation at low VOC No compromise in film hardness Water soluble materials in the binder Kinetics of film formation Binder design concepts 7
Acronal EDGE 4247 X latex overview <25 g/l VOC with VOC solvents Zero VOC with zero VOC coalescing agents All acrylic self crosslinking binder MFFT 7-8ºC 53-55% weight solids APEO free 8
Flat White One Coat on Southern Yellow Pine 15 Months Exposure Time Acronal EDGE 4247 Commercial 50 VOC Flat Competitive Latex A Competitive Latex B 9
Efflorescence Resistance Acronal EDGE 4247 X Competitive Latex A Commercial 50 VOC Flat Plaster of Paris tiles 2% Sodium sulfate solution Acronal EDGE 4247 X demonstrates superior efflorescence resistance 10
Tannin Blocking 4.5 Tannin Blocking 4 3.5 3 2.5 2 1.5 1 0.5 0 Acronal EDGE 4247 Acronal PLUS 4230 Rhoplex AC 464 Commercial 50 VOC Acronal 4247 Exterior Latex A Exterior Latex B Commercial Paint Flat ΔE ΔYellowness Two coats on cedar substrate, no zinc oxide used Similar results with redwood Acronal EDGE 4247 X has good tannin blocking 11
Early Rain Resistance Shower head test 10 mil wet coating 25 minutes dry time Showered for 10 minutes Acronal 4247- Flat 25 g/l VOC Commercial Flat Paint 50 g/l VOC film failure 12
Adhesion and Scrubs Flat Paint Properties BASF Acronal EDGE 4247 Leading Commercial paint VOC (g/l) <25 g/l <50 g/l Pendulum hardness (oscillations) 11 10 Scrub resistance cycles 2200 300 Adhesion 24 Hours Green alkyd 2000 cycle (% loss) No Loss No Loss Galvanized steel (0-5, 5 perfect) 4 0 Aluminum(0-5, 5 perfect) 3 4 Chalky substrate(0-5, 5 perfect) 5 4 13
Summary New Binder Acronal EDGE 4247 0-25 g/l VOC capable Primer Performance Adhesion Good tannin blocking and efflorescence resistance Good dirt pick-up resistance, leaching resistance, and scrub resistance Exposure weathering study in progress 14
Acronal EDGE 4750 Formulating Waterborne Paints with Superior Stain Resistance
Overview Market Move Towards Improved Stain Resistance Importance of Latex and Paint Components Acronal EDGE 4750 Key Attributes and Properties Performance and Benchmarking 16
Staining of Consumer Paints Consumer paints are exposed to a variety materials that cause temporary or permanent staining Stains can be broadly classified into two groups : Hydrophilic - Wet Paint Surface and Diffuse into the Film Hydrophobic - Cause swelling of the paint film and migration of stain materials (e.g. pigments in lipstick) Challenges to the formulator Achieving optimum stain resistance and removal across various staining materials Achieving an optimum balance of all key paint properties 17
Formulation Components Impact on Stain Resistance Stain Resistance and Removal is impacted by Essentially All Paint Components Latex Binder -Typically has the most impact Extender Package Formulation Additives Thickener, Surfactants and Dispersants Change in Formula n components Selection of Formulation components key to unlocking stain resistance potential of given latex binder INTERN 18
Acronal EDGE 4750 Optimized Latex Binder for Best In-Class Stain Resistance Key Features Optimized Particle Morphology and Composition o o Enhanced resistance and removal of Both Hydrophilic/Hydrophobic Stains Reduction of stain migration into the paint film Excellent balance of overall key paint properties < 50 VOC g/l Physical Properties (Not Specifications) Solids: 50%(w/w) MFFT: ca. 15 o C Particle size ca. 120nm APEO-Free INTERN 19
Acronal EDGE 4750 Formulation and Performance 20
Acronal EDGE 4750 Interior Flat Paint and Primer - Stain Resistance Acronal EDGE 4750 Leading Commercial Paint & Primer Flat 21
Acronal EDGE 4750 Interior Semi-Gloss Paint and Primer- Stain Resistance Acronal EDGE 4750 Leading Commercial Paint & Primer Semi-Gloss 22
Acronal EDGE 4750 Performance Interior Flat Paint and Primer Stain Blocking Dry Alkyd Adhesion 10 8 6 4 2 0 Wet Alkyd Adhesion Acronal EDGE 4750 Competitive Latex A Commercial Paint & Primer Flat A Competitive Latex B Stain Resistance Scrub Resistance Commercial Paint & Primer Flat B Acronal EDGE 4750 Competitive Latex A Commercial Paint & Primer Flat A Competitive Latex B Commercial Paint & Primer Flat B Dry Alkyd Adhesion 10 8 10 10 10 Wet Alkyd Adhesion 10 0 8 8 10 Scrub Resistance 10 7 7 5 5 Stain Resistance 10 6 9 6 3 Stain Blocking 7 3 3 4 4 23
Acronal EDGE 4750 Performance Interior Semi-Gloss Paint and Primer Room Temp Block Resistance Stain Resistance 10 8 6 4 2 0 Scrub Resistance Acronal EDGE 4750 Commercial Paint & Primer Semi-Gloss A Commercial Paint & Primer Semi-Gloss B Competitive Latex A Hot Block Resistance Adhesion Competitive Latex B Acronal EDGE 4750 Commercial Paint & Primer Semi-Gloss A Commercial Paint & Primer Semi-Gloss B Competitive Latex A Competitive Latex B Stain Resistance 10 8 6 6 4 Scrub Resistance 10 6 4 6 3 Adhesion 10 9 8 6 10 Hot Block Resistance 6 0 10 0 7 Room Temp Block Resistance 8 5 10 6 8 24
Joncryl 2990 X Technology for Concrete Floor Coatings Joncryl 2990X Description Features Self-crosslinking, wet-look acrylic emulsion for cementitious substrates Applicable in Clear and Pigmented paint formulations Hardness and Chemical resistance early resistance to water blushing Good adhesion to concrete Good dirt resistance Resistance to hot-tire pickup Visit us at tonight s reception or tomorrow s trade show to learn more! VOC (g/l) 50 25
Questions? Thank you! Deven Shah Technical Account Manager deven.shah@basf.com 26