CAB-551-0.01 is a low–molecular weight, cellulose acetate butyrate polymer. It is used as a film former and resin modifier in solvent and UV-curable coatings.
CAB-551-0.01 has the highest butyrate content and lowest molecular weight of the Eastman CAB grades. The low molecular weight of CAB-551-0.01 allows for formulating high-solids coatings while maintaining a workable viscosity.Â
The high butyrate content of CAB-551-0.01 lends to excellent flexibility and compatibility with a very wide range of solvents, resins, and monomers. It is soluble in common acrylic monomers and styrene and can therefore be used in reactive coatings and inks with 100% solids. When used in UV-curable inks and coatings, CAB-551-0.01 improves leveling, gloss, and hardness. It can also help reduce the amount of shrinkage due to cross-linking and curing.
CAB-551-0.01 can be used by pultruders to enable higher pultrusion speed and prevent internal and external cracking. When formulated into coatings, CAB-551-0.01 improves UV stability, flow, leveling, pigment orientation, and durability.Â
CAB-551-0.01 can also be blended with CAB-381 at a ratio of 1:8 and be used as a film-forming polymer system in protective coatings for nail polish. When used in nail polish formulations, CAB-551-0.01 acts as a film former and provides sag resistance, easy application, UV resistance, gloss, and fast drying speeds. In addition, CAB-551-0.01 can be used as an additive in UV- and LED-curable nail polish to make gel coat removal easier.Â
Viscosity ASTM-A (sec): 0.01
Acetyl by GC (wt%): 4 Max
Butyryl by GC (wt%): 50–54
Free acidity (Max ppm): 300Â
Moisture (Max wt%): 3.0
Hydroxyl (wt%): 1.6–2.4
Improves flow and leveling
Reduces cratering
Reduces dry time
Provides polishability
Improves sprayability
Decreases blocking
Serves as a pigment dispersion medium
Optimizes metallic pigment orientation
Resists redissolution
Provides sag resistance
Enhances color uniformity
Decreases sand scratch telegraphing
Promotes intercoat adhesion
Improves pultrusion speed
Prevents pultrusion cracking
Poor leveling and high surface defects in coatings, inks, and adhesives
Inadequate abrasion resistance of coatings and inks
Low gloss and distinctness of image on coated surfaces
Yellowing of nitrocellulose-based coatings under UV exposure
Slow drying time of solvents from coatings, inks, and adhesives
Incompatibility with monomers used in UV-curable systems
Shrinkage of UV-cured coatings and inks that leads to adhesion failure
Difficulty removing UV-curable nail polish
Solvent-based coatingsÂ
100% solids coatingsÂ
UV-curable inks and coatings
Automotive 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 CAB enhances efficiencies and reduces waste through fewer rejects and reduced need for re-coating while substantially improving finished outcomes.
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 can be formulated into inks as the main film former, co-resin, or additive to improve appearance, performance, and productivity.
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