In order to solve the problems of brittle film of moisture-curing acrylic modified polysiloxane coating,poor adhesion between the matching layer and epoxy intermediate paint,and easy peeling and cracking of the paint film,the effects of hydrogenated bisphenol A epoxy resin on the blending modification of acrylic modified polysiloxane resin,temperature and humidity and coating interval time on the compatibility were discussed.The optimum dosage of hydrobisphenol A epoxy resin,coating time interval,temperature and humidity were determined.The results show that the film flexibility of wet cured acrylic modified polysiloxane finish can be improved effectively when the dosage of hydrobisphenol A epoxy resin is 1%~3%.The coating interval time is controlled within 8 hours,the ambient temperature is controlled between 5~40℃,and therelativehumidity iscontrolled between 30%~80%.Thecoatingsystemhas excellent matching performance and the best interlayer adhesion.