Technical Data Sheet
Eastman™ Cellulose Acetate Butyrate (CAB-551-0.2)
Cellulose Acetate Butyrate
Ace machinery & equipment
Automotive parts & accessories
Automotive protective coatings
Can coating internal
Can coatings external coating
Commerical printing inks
Exterior architectural coatings
Flexographic printing inks
General industrial coatings
Gravure printing inks
Inkjet printing inks
Non-medical housings & hardware for elec
Pack & carton coatings
Packaging coatings non food contact
Packaging inks non food contact
Paints & coatings
Personal care ingredients
Photographic imaging film
Small appliances non-food contact
Water treatment industrial
Eastman Cellulose Acetate Butyrate (CAB-551-0.2) is a cellulose ester with high butyryl content and relatively low molecular weight. It is compatible with numerous cross-linking resins and has a lower solution viscosity. In coatings, Eastman CAB-551-0.2 gives clear films, reduces surface tack and mottling, minimizes cratering, improves flow and thermal reflow, and provides inter coat adhesion and good UV stability. It is useful for durable cross-linked formulations. Its good compatibility with a wide range of curing resin systems and its solubility in a wide variety of solvents and solvent combinations make it useful as an additive in numerous coating compositions. Eastman cellulose esters are based on up to sixty percent cellulose, one of the most abundant natural renewable resources.
Typical Value, Units
52 wt %
2 wt %
as Acetic Acid
0.02 wt %
Glass Transition Temperature (T
1.16 kg/L (9.67 lb/gal)
787-984 kv/cm (2-2.5 kv/mil)
Viscosity determined by ASTM Method D 1343. Results converted to poises (ASTM Method D 1343) using the solution density for Formula A as stated in ASTM Method D 817 (20% Cellulose ester, 72% acetone, 8% ethyl alcohol).
Determination of color and haze made on a solution of CAB-551-0.2 dissolved in a Rule 66 exempt blend of lacquer solvents, using Pt-Co color standards and a monodisperse polystyrene latex suspension haze standard.
Polystyrene equivalent number average molecular weight determined by gel permeation chromatography.
Properties reported here are typical of average lots. Eastman makes no representation that the material in any particular shipment will conform exactly to the values given.
Eastman and its marketing affiliates shall not be responsible for the use of this information, or of any product, method, or apparatus mentioned, and you must make your own determination of its suitability and completeness for your own use, for the protection of the environment, and for the health and safety of your employees and purchasers of your products. No warranty is made of the merchantability of fitness of any product, and nothing herein waives any of the Seller's conditions of sale.