Tough And Elastic Silicone Rubber For Superior Sealing. Temperature Resistant From 50 C To 300 C For Short Periods. Chemically Resistant To Petrol; Diesel. Paraffin; Water; Oil; Anti Freeze (Not Use On Parts Continuously Immersed In Petrol). Non Corrosive. No Negative Impact On Electrical Components (E.G. Vehicle Sensors).