Eastman Introduces Two New Adhesion Promoters for Automotive Paint-on-Plastic Market
Eastman Chemical Company is pleased to announce the latest additions to its portfolio of unique products for paint adhesion to olefin plastics: Eastman CP 730-1 chlorinated adhesion promoter and Eastman AP 550-1 non-chlorinated adhesion promoter. Both products target the increasing performance demands of the automotive paint-on-plastic market.
Each of these new products is designed to be the active component in adhesion promoter primers used to insure adhesion of color coats and topcoats to polypropylene and thermoplastic olefin (TPO) plastics.
Eastman CP 730-1 provides excellent adhesion properties for all typical basecoat chemistries. Adhesion promoters built around CP 730-1 exhibit excellent gasoline resistance and humidity resistance. "The newer, high modulus TPOs being used today require a higher performance adhesion promoter," says Jon Lawniczak, technical market specialist for automotive coatings. "CP 730-1 gives paint formulators the adhesion performance they need to keep their coatings on the part through vigorous performance and environmental testing conditions."
CP 730-1 also has outstanding gasoline and gasohol resistance under melamine cured systems. "CP 730-1 performs really well in the difficult gasohol test", says Lawniczak. "Our customers are very pleased with the results they are getting with CP 730-1."
Eastman CP 730-1 adhesion promoter is available at 20% weight solids in aromatic 100 or in xylene.
Eastman AP 550-1 adhesion promoter is Eastman's second-generation non-chlorinated product, with improved adhesion performance over its predecessor, Eastman AP 440-1 adhesion promoter. "The non-chlor systems are known to show great performance under 2-part urethane (2K) coatings but often their application is limited to 2Ks", says Lawniczak. "AP 550-1 takes the non-chlor performance several steps further and expands performance to applications under melamine-cured systems." Due to its lack of chlorine and to its chemical structure, Eastman AP 550-1 adhesion promoter exhibits excellent gasoline resistance. "We believe many formulators will be able to get a boost in gasoline resistance performance by adding AP 550-1 to their current adpro system," Lawniczak added. Eastman AP 550-1 adhesion promoter is available at 25% weight solids in aromatic 100 or in xylene.
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