Eastman CAB-531-1 is a medium - viscosity modified resin in the cellulose acetate butyrate series, specially customized for high - performance coating systems such as wood, plastic and metal. With high butyryl content, it has excellent compatibility with various modified resins, can accelerate solvent release to shorten drying time, promote aluminum powder orientation to enhance metallic flash effect
Medium Viscosity & Wide Adaptability - Medium viscosity suitable for multiple application scenarios, easily soluble in various solvents, reducing system viscosity and improving construction convenience
Efficient Drying Acceleration & Orientation - Accelerate solvent volatilization to shorten touch - dry time, promote aluminum powder orientation and enhance metallic paint decorative effect
Broad Compatibility & Synergy - Miscible with acrylic, amino and other resins, can be used with CAB-551-0.2 to optimize comprehensive coating performance
Flexibility & Long - lasting Weather Resistance - Endow the paint film with good flexibility, yellowing resistance and cold crack resistance, ensuring long - term stable appearance of coatings for outdoor use
High - grade Wood Coatings - Improve leveling and drying performance, enhance yellowing resistance and crack resistance, and increase coating wear resistance and color stability
Metal Protective Coatings - Accelerate solvent release to shorten touch - dry time, promote aluminum powder orientation, and improve coating gloss and gloss retention
Plastic Decorative Coatings - Enhance flexibility and cold crack resistance, suitable for coating plastic casings of electronics, home appliances, etc., and improve coating texture
Automotive Refinish Coatings - Shorten drying time, improve cold crack resistance, enhance coating polishing performance, and adapt to automotive refinish processes
| Chemical Name | Cellulose Acetate Butyrate (CAB) |
| Appearance | White free-flowing powder |
| Viscosity | 1.90 sec / 7.20 poise |
| Acetyl Content | 3.0% |
| Butyryl Content | 50.0% |
| Hydroxyl Content | 1.7% |
| Melting Range | 135-150°C |
| Glass Transition Temperature (Tg) | 115°C |
| Tukon Hardness (Knoop) | 15 |
| Weight/Volume Ratio | 9.75 lb/gal (1.17 kg/L) |
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