... appliances Good protective ISO2008 ROSH rubber waterproof grommet 1.material:made in high grade silicone rubber material,environmental safe material,non-toxic ... 550F, depending on material ItemDescriptionMaterialNR, NBR, SBR, EPDM, IIR, CR, SILICONE, VITONHardness 20~90 Shore APacking Inner-Plastic Bag; Outer -Standard ...