This product is specially designed for the vacuum coating process, widely used in metal, ceramics and other substrates, as the base coat of vacuum metalizing. Its solvent is pure water as a solvent and is environmentally friendly. It has excellent adhesion and mechanical properties, high temperature resistance, boiling resistance, salt spray resistance, durable glossiness, fulling, good leveling, less pitting, good hand feeling, high hardness (not easy to scratch), not easy to matte, colorful , stable performance, wide adaptability and other advantages.