Improvement of the chemical adhesion of EPDM rubber to Sheet Moulding Compound (SMC) by the addition of phenolic resin as adhesion promoter

The objective of this study is to improve the adhesion between SMC and EPDM Rubber without the application of a solvent-based adhesive. The influence of the addition of different percentages of phenolic resin, as an adhesion promoter, in the SMC, has been studied. The SMC was prepared in a conventional continuous SMC machine. The EPDM rubber was over-injected on the SMC part, and then vulcanized. The chemical bonding between both materials was...