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CAB-551-0.2
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.
Specifications
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
Primary Chemistry: Cellulose Acetate Butyrate
Features & Benefits
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
Problems Solved
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
Applications
Automotive coatings Coil coatings Wood coatings Printing inks Adhesives Plastic coatings UV-curable coatings UV-curable inks Reactive coatings Nail care
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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Thank you
Thank you for your inquiry and interest in ChemPoint. We will respond to you shortly.
ChemPoint will not under any circumstances release personal user information to individuals or companies. All information collection is solely used to support ChemPoint customers service communications. Read our Privacy Notice.
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