Research and Application of Silicone Tie-coatings for the Release Antifouling Paints

A two-component silicone tie coating has been developed by the curing reaction between different viscosities of hydroxyl silicone oil and silane coupling agents. Adhesive strength X-EDS and resistance to freshwater immersion were used to investigate the interfacial reaction of the tie coatings with anticorrosive primer and release antifouling. The results show that the silicone tie coating can form chemical bond with anticorrosive primer and also the best adhesion property to release antifouling coating could be achieved when the viscosity of hydroxyl silicone oil is 7 500 Cp and the curing agent is compounded of 5% KH550 and 3% CG310.