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

Eastman CAB CAB-381-20BP-100% Cellulose Acetate Butyrate

Eastman CAB-381-20BP-100% is a high-purity cellulose acetate butyrate resin from Eastman’s CAB series, offering excellent clarity, toughness, and solvent resistance. Widely used in coatings, inks, adhesives, and specialty films, it provides superior flow, gloss, and UV stability versus standard CAB grades.
  • eastman cab cab 381 20bp 100 cellulose acetate butyrate_f36e3975
  • eastman cab cab 381 20bp 100 cellulose acetate butyrate_f36e3975

Features Of Eastman CAB CAB-381-20BP-100% Cellulose Acetate Butyrate

  1. Excellent solubility in a broad range of common organic solvents, including esters, ketones, and aromatic hydrocarbons.

  2. Superior film-forming capability with high clarity, gloss, and toughness for demanding coating applications.

  3. Outstanding resistance to moisture, UV radiation, and plasticizer migration compared to standard cellulose acetate.

  4. Good compatibility with nitrocellulose, acrylics, polyurethanes, and many plasticizers for versatile formulation design.

  5. Low solution viscosity at high solids content, enabling efficient application and reduced solvent usage.

Typical Applications Of Eastman CAB CAB-381-20BP-100% Cellulose Acetate Butyrate

  1. Automotive clearcoats and basecoat additives for enhanced mar resistance and flow control.

  2. Industrial maintenance coatings requiring durability, chemical resistance, and rapid drying.

  3. Wood furniture finishes where clarity, hardness, and sandability are critical performance criteria.

  4. Flexible packaging inks and overprint varnishes demanding excellent substrate adhesion and gloss retention.

  5. Adhesive modifiers for pressure-sensitive and laminating adhesives to improve tack and shear strength.

Specifications Of Eastman CAB CAB-381-20BP-100% Cellulose Acetate Butyrate

Chemical TypeCellulose acetate butyrate (CAB)
Product FormFree-flowing white to off-white granular solid
AppearanceWhite to light tan granules
Butyryl Content (wt%)20–22%
Acetyl Content (wt%)~38%
Hydroxyl Content (wt%)~2.5%
Typical Intrinsic Viscosity (dL/g, 0.5% in acetone)1.0–1.2
Moisture Content (max)1.0%


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