... also different materials of rubber flat wahsers, viton washers, silicone washers, EPDM washers, NBR washers, PU washers, NR washers ... ~80 Shore Ablack, white, red, any colorSilicone property for referenceAdvantage: high temperature resistance (maximum 300°C) and ... Operating Temperature: -60°C~+200°CApplication: mainly used for high and low temperature resistant products(hose, seals), high ...