Specifications Application To maintain the IP rating between equipment & cable glands it may be necessary to fit an entry thread sealing washer at the gland entry interface. Material Nitrile Rubber & EPDM Operating Material PVC (Black) Silicon (Orange) Polyamide or Nylon (White) Red Fiber. Seals available for both external of & internal use. Get a Quote Related Products PVC Shrouds Brass Lock Nuts Brass Earth Tags Reducer & Stop Plug Hazardous Area IP-68