Providing connection between IFFA's ink and materials, primer (base coat) plays an important role in the process of water transfer printing. Because materials for decoration always vary: metal, plastic, wood etc., the base coat needs to be selected correspondently. Besides, base coat also affects the visual effect of IFFA hydro-graphic film. IFFA provides base coat for customers' convenience.

After applying IFFA designs on the materials, a layer of clear coat (top coat) protecting ink and base coat is required. Glossy clear coat and matte clear coat are widely used. Sometimes flat clear is a balance between glossy clear and matte clear. Besides, for the outdoor products, we strongly suggest that customers apply IFFA's K6 ink (weather resistant ink) and PVDF clear coat.