... of 100%silicone 2.Available in design and color 3.Precisely silicone washer mold design 4.OEM/ODM silicone cap features: ... Attention:Custom-made is welcomed! 1. Materials advice: silicone and rubber (EPDM, also NBR, SBR, CR, NR, ... request , Environmental Friendly, to give you optimum material performance in your particular application.2. Application: automotive, machinery, bathroom facilities ...