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CAB-171-15
CAB-171-15 is a high molecular weight mixed cellulose ester with low butyrate content. It is typically used as a film forming resin in a solvent-based coatings.
CAB-171-15 offers the lowest butyrate content of all Eastman™ Cellulose Acetate Butyrates (CABs). Films made from CAB-171-15 are harder and tougher than films made with other mixed esters due to the low butyrate content and high molecular weight. Also, the low butyrate content of CAB-171-15 makes it less soluble and therefore it's films are more resistant to chemical attack. Coatings formulated with CAB-171-15 offer exceptional durability, chemical resistance, UV resistance, and will typically outperform coatings based on nitrocellulose. Additionally, the use of CAB-171-15 in coating applications improves flow and leveling allowing for coatings that have fewer surface defects and higher gloss.
Specifications
Viscosity ASTM-A, sec: 14 - 24 Acetyl by GC, wt%: 28 - 31 Butyryl by GC, wt%: 16.5 - 19 Free acidity, ppm: 300 Max Moisture, wt%: 3.0 Max Hydroxyl, wt%: 0.8 - 1.4
Primary Chemistry: Cellulose Acetate Butyrate
Features & Benefits
Film toughness Heat resistance Improves flow and leveling Reduces cratering Reduces dry time Provides polishability Improves sprayability Pigment dispersion medium Metallic pigment control Redissolve resistance Sag resistance Enhanced color uniformity Decreased sand scratch telegraphing Intercoat adhesion
Problems Solved
Failure of nitrocellulose coatings when exposed to heat and UV Damage to coatings caused by abrasion Surface defects and poor leveling of solvent based coatings and lacquers
Applications
Solvent-Based Coatings; Automotive Coatings; Wood Coatings; Paper Coatings
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.
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