CAB-551-0.2 is a cellulose acetate butyrate (CAB) resin with excellent compatibility. It is primarily a flow and leveling aid used in solvent-based and UV-curable coatings and inks.
CAB-551-0.2 is a cellulose acetate butyrate polymer with very high butyrate content and relatively low molecular weight. It can be used as a film former and additive in coating and ink applications to improve metallic pigment orientation, gloss, wetting, leveling, and durability. The high butyrate content of CAB-551-0.2 provides improved flexibility in coatings and makes it widely soluble in a range of organic solvents and monomers. CAB-551-0.2 is also compatible with a wide variety of resins and pigments. Coatings and inks formulated with CAB-551-0.2 have increased resistance to yellowing from UV exposure and faster solvent release.
CAB-551-0.2 is soluble in common acrylic monomers and compatible with many UV-curable resins used in reactive and UV-curable formulations. When formulated into UV-curable coatings, CAB-551-0.2 helps prevent shrinkage of the coating due to cross-linking that occurs during rapid curing.
CAB-551-0.2 can be used by pultruders to enable higher pultrusion speed and prevent internal and external cracking. When CAB-551-0.2 is used in nail polish and protective nail coatings as a film former, it provides excellent sag resistance, gloss, color retention, and fast drying speeds.
Viscosity ASTM-A (sec): 0.16–0.25
Acetyl by GC (wt%): 4 Max
Butyryl by GC (wt%): 49.0
Free acidity (ppm): 300 Max
Moisture (max wt%): 3.0
Hydroxyl (wt%): 1.4–2.4
Improves flow and leveling on a variety of surfaces
Reduces cratering
Reduces dry time
Increases antiblocking properties
Provides polishability
Improves sprayability
Serves as a pigment dispersion medium
Controls orientation of metallic pigments
Resists redissolution
Provides sag resistance
Enhances color uniformity
Decreases sand scratch telegraphing
Provides intercoat adhesion
Improves pultrusion speed
Prevents pultrusion cracking
Excellent solubility in alcohol
Increases gloss and preserves distinctness of image
High surface defects caused by poor leveling and flow properties
Low abrasion resistance
Discoloration from UV exposure
Poor gloss and distinctness of image
Solvent drying times that are too slow
Cracking of pultruded plastic parts
Surface defects of UV-curable formulations caused by poor leveling and shrinkage upon cure
Yellowing of nail polish caused by exposure to UV and heat
Automotive coatings
Coil coatings
Wood coatings
Printing inks
Adhesives
Plastic coatings
UV-curable coatings
UV-curable inks
Reactive coatings
Nail care
Cellulose Esters enhance appearance, performance and protection capabilities of wood coatings and finishes. They are used as co-resin or additive to provide benefits to 2K PU/acrylics, acid-cured and UV-cured formulations.
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 CAB enhances efficiencies and reduces waste through fewer rejects and reduced need for re-coating while substantially improving finished outcomes.
Eastman cellulose esters can be formulated into inks as the main film former, co-resin, or additive to improve appearance, performance, and productivity.
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