Product Overview

CAB-381-20 BP is a cellulose ester resins with medium butyryl content and high viscosity. It provides greater toughness, better mechanical properties and high cold crack resistance due to improved dimensional stability. CAB-381 products are compatible with many resins and soluble in low-cost solvent systems. 

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

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

Related Products

Eastman Cellulose Esters

Eastman™ cellulose esters are available in various types, viscosities, butyryl and acetyl ratios, and hydroxyl contents. Made from a green, sustainable and renewable resource, their high Tg, Newtonian flow characteristics, and hydroxyl functionality assure a rapid drying time, excellent hardness, reduced blocking, and improved flow and leveling capabilities.