Effect of Wax, Plasticizer, and High Humidity on Adhesion of Polyurethane Bonded Chloroprene to Primed Steel 750139

Evaluation was made of the effects of plasticizer, wax, and high humidity on the peel strength of vulcanized chloroprene rubber bonded to primed steel with a polyurethane adhesive. Antiozone wax in rubber has a pronounced effect in reducing adhesion of the rubber to the adhesive. Dioctyl sebacate plasticizer in the rubber reduces bond strengths moderately. High humidity has a substantial deleterious effect upon the polyurethane adhesive and primer system used in this study.


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