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CAB-381-20
CAB-381-20 is a high molecular weight cellulose acetate butyrate (CAB) polymer. It is used as a film former and additive in solvent-based coatings.
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Documents
- Manufacturer: Eastman
- Product Line: Eastman Cellulose Esters
- Product: Cellulose Acetate Butyrate
- Industries: Adhesives | Coatings | Inks | Personal Care
- Authorized Countries: Canada | United States
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Authorized Countries
Canada
United States
Overview
CAB-381-20 is a mixed cellulose ester with moderate butyryl content and high viscosity. It is commonly used as a film former or as an additive in solvent-borne coatings to improve leveling, gloss, UV resistance, and durability. CAB-381-20 is soluble in a wide range of common organic solvents and is compatible with most common resins and plasticizers. CAB-381-20 is the ideal film former for applications that require enhanced appearance and reliable performance like automotive coatings, wood coatings, and lacquers. CAB-381-20 is also commonly used in nail polish as it provides superior stability when compared to other film formers like nitrocellulose. When CAB-381-20 is used as a film former in nail polish formulations it allows for faster drying and fewer applications that similar formulations with nitrocellulose. In addition, a cost savings can be realized by using CAB-381-20 in nail polish as the same durability seen with a lower molecular weight polymer can be achieved at a lower addition rate.
Specifications
Viscosity ASTM-A, sec: 17 - 28
Acetyl by GC, wt%: 12 - 15
Butyryl by GC, wt%: 35 - 39
Free acidity, ppm: 300 Max
Moisture, wt%: 3.0 Max
Hydroxyl, wt%: 1.4 - 2.2
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
Problems Solved
Intercoat adhesion failure of multi-coat systems
Poor pigment dispersion that leads to low color strength
Damage to coatings caused by abrasion
Coating defects like orange peel and pin holes
Applications
Automotive Coatings; Textile Coatings; Lacquers; Nail Polish; Wood Coatings
Related Applications
Adhesives
Coatings
- Aerosol Coatings
- Aerospace Coatings
- Appliances & Machinery Coatings
- Architectural Coatings
- Automotive OEM Coatings
- Automotive Refinish
- Basecoats
- Ceramic Coatings
- Coil Coatings
- Consumer Paints
- Electronics Coatings
- Floor Coatings
- Furniture Coatings
- Industrial Coatings
- Lacquers
- Marine Coatings
- Metal Coatings
- Nail Polish
- Overprint Varnishes
- Pipe Coatings
- Plastic Coatings
- Primers
- Release Coatings
- Special Purpose Coatings
- Stone and Tile Coatings
- Terra Cotta Coatings
- Textile & Leather Coatings
- Topcoats
- Traffic Paint
- Wood Coatings
- Automotive Inks
- Commercial & Publication
- Corrugated Boxes
- Digital Inks
- Flexible Films
- Glass & Ceramics
- Graphic Arts Coatings
- Narrow Web
- Packaging
- Plastics
- Printed Electronics
- Tag & Label
- Textiles
Related Chemistries
Related Functions
Adhesives
Coatings
Inks
Personal Care
Related Technologies
Eastman Cellulose Esters Articles
Eastman Automotive
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.
Eastman Cellulose Esters - Metal coatings
Eastman CAB enhances efficiencies and reduces waste through fewer rejects and reduced need for re-coating while substantially improving finished outcomes.
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