CP 343-1-50% is a solution of chlorinated polyolefin and xylene that is used in solvent based primers to promote adhesion of coatings, inks, and adhesives.
CP 343-1 is dissolved in Xylene at 50% to provide this solution grade adhesion promoter. It is most often diluted and used on polypropylene, TPO, and metal as a primer. CP 343-1-50% increases the surface energy of polyolefin plastics and allows for inks, coatings, paints, and adhesives to adhere better. This grade is useful in wet climates as it provides good wet adhesion and maximum humidity resistance. CP 343-1-50% is used in a variety of applications including automotive coatings, architectural paints, printing inks for flexible packaging, adhesives, and sealants.
Specific gravity @25°C: 0.935
Flash point, tag closed cup: 28°C (83°F)
Fire point: 52°C (125°F)
Color, Gardner: 8
Autoignition temperature (Test method - D 2155): 460°C (860°F)
Specific gravity, solid CPO @25°C: 0.99-1.03
Chlorine: 18-23 wt
Primary Chemistry: Chlorinated Polyolefin
Excellent primer in PP, TPO, Non-olefin plastics and metal substrates
Excellent humidity resistance
Modification of CP343-1 with ethylene vinyl acetate increases the softening point and cohesive strength of primer film.
Failure of primers in humid and wet climates.
Difficulty solvating and diluting priming resins.
Primers; Architectural Coatings; Automotive Coatings; Flexible Packaging; Printing Inks; Adhesives & Sealants
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