CAB-381-20 BP is high molecular weight cellulose acetate butyrate (CAB) polymer. It is designed to have a lower solution viscosity and is an ideal film former for high solids solvent-based coatings.
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CAB-381-20 BP is a mixed cellulose ester with moderate butyrate content. It is designed to have a lower solution viscosity than standard CAB-381-20 making it especially useful in coating applications that require a higher solids content. Coatings made with CAB-381-20BP have excellent UV resistance, ideal pigment orientation, high gloss, and are remarkably durable. CAB-381-20BP can also be used as an additive to decrease surface defects in a coating by improving the flow and leveling. It is also commonly used as replacement for nitrocellulose in wood coatings and nail polish due to the superior UV stability and safety.
Product Specifications
Viscosity ASTM-A, sec: 12 -20 Acetyl by GC, wt%: 14 - 17 Butyryl by GC, wt%: 33.0 -38.0 Free acidity, ppm: 300 Max Moisture, wt%: 3.0 Max Hydroxyl, wt%: 0.5 - 1.2
Primary Chemistry: Cellulose Acetate Butyrate
Features & Benefits
Improve flow and leveling Reduce cratering Reduce dry time Provide polishability Improve sprayability Pigment dispersion medium Metallic pigment control Redissolve resistance Sag resistance Enhanced color uniformity Decreased sand scratch telegraphing Intercoat adhesion Compliant with European standards
Applications
Automotive Coatings; Textile Coatings; Lacquers; Nail Polish; Wood Coatings
Eastman Solus™ performance additives are the newest cellulose esters designed for high-solids solvent-borne systems. Solus™ is specifically engineered to meet lower VOC target while improving performance in clear, pigmented and metallic automotive coatings.