... . Oil proof 3. Heat resistant. 4. Weather proof. Silicone Rubber Gasket: MaterialsSI, NBR, SI, HNBR, ACM, SBR, FPM, CR, BR, ... , green, red, yellow, etc.CertificationsAll manufacturing processes are complied with ISO9001:2008Materials approvedMaterials meet RoHS directive, NSF, KTW, WRAS, etc.QC ... and quick shipment.MOQNegotiable, and small order quantity is welcomed. Rubber seal gasket