... strength and toughness, weather-resistance, friction-resistance Product InstructionProduct NamePU-spraying ink for Silicone Rubber Products ... excellent heat-resistance and anti-yellowing.3,This product has good corrosion- resistance and has passed the ... the surface coating of silicone products. Usuage1,This product is a single component. There is no need ... long time. PU ink for silicone key-press