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CP 343-1-25% Xylene
CP 343-1-25% is a solution based chlorinated polyolefin that is used as an adhesion promoting resin in primer formulations for untreated polypropylene.
CP 343-1-25% is a 25% solids solution of chlorinated polypropylene in xylene. It is most often used as the adhesion promoting resin in primer formulation for thermoplastic polyolefins and metals. When applied to untreated polyolefins, CP 343-1-25% functions as a tie layer and allows for improved adhesion of inks, coatings, adhesives, and sealants to the low surface energy plastic. Primers formulated with CP 343-1-25% exhibit excellent humidity resistance and are ideal for use in particularly wet environments.
Specifications
Specific gravity @25°C: 0.898 Flash point, tag closed cup: 27°C (81°F) Fire point: 30°C (86°F) Color, Gardner: 7 Autoignition temperature (Test method - D 2155): 485°C (905°F) Specific gravity, solid CPO @25°C: 0.99-1.03 Chlorine: 18-23 wt
Primary Chemistry: Chlorinated Polyolefin
Features & Benefits
Excellent primer in PP, TPO, Non-olefin plastics and metal substrates Excellent humidity resistance Available in 25%, 40% and 50% by weight solids in xylene Modification of CP343-1 with ethylene vinyl acetate increases the softening point and cohesive strength of primer film.
Problems Solved
Difficulty solvating primer resins in solvent Coatings, inks, and adhesives won't stick to plastic Adhesion failure caused by extreme humidity
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