Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Eastman CAB-531-1 Cellulose Acetate Butyrate

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

Features Of Eastman CAB-531-1 Cellulose Acetate Butyrate

  1. Medium Viscosity & Wide Adaptability - Medium viscosity suitable for multiple application scenarios, easily soluble in various solvents, reducing system viscosity and improving construction convenience

  2. Efficient Drying Acceleration & Orientation - Accelerate solvent volatilization to shorten touch - dry time, promote aluminum powder orientation and enhance metallic paint decorative effect

  3. Broad Compatibility & Synergy - Miscible with acrylic, amino and other resins, can be used with CAB-551-0.2 to optimize comprehensive coating performance

  4. 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

Typical Applications Of Eastman CAB-531-1 Cellulose Acetate Butyrate

  1. High - grade Wood Coatings - Improve leveling and drying performance, enhance yellowing resistance and crack resistance, and increase coating wear resistance and color stability

  2. Metal Protective Coatings - Accelerate solvent release to shorten touch - dry time, promote aluminum powder orientation, and improve coating gloss and gloss retention

  3. Plastic Decorative Coatings - Enhance flexibility and cold crack resistance, suitable for coating plastic casings of electronics, home appliances, etc., and improve coating texture

  4. Automotive Refinish Coatings - Shorten drying time, improve cold crack resistance, enhance coating polishing performance, and adapt to automotive refinish processes

Specifications Of Eastman CAB-531-1 Cellulose Acetate Butyrate

Chemical NameCellulose Acetate Butyrate (CAB)
AppearanceWhite free-flowing powder
Viscosity1.90 sec / 7.20 poise
Acetyl Content3.0%
Butyryl Content50.0%
Hydroxyl Content1.7%
Melting Range135-150°C
Glass Transition Temperature (Tg)115°C
Tukon Hardness (Knoop)15
Weight/Volume Ratio9.75 lb/gal (1.17 kg/L)


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