... toughness, weather-resistance, friction-resistance Product InstructionProduct NamePU-spraying ink for Silicone Rubber Products Description 1,Outstanding strength and toughness, weather ... treatment or discharge treatment.4,,curing conditions: 160 ± 5 °C × 40 minutes. Remarks1, we can adjust concentration, texture and ... use, re-seal and do not expose it for a long time. PU ink for silicone key-press