... , 4KV, 7KV Colour: red line, green Silicone fiberglass sleeving. Acrylic fiberglass sleeving. PVC fiberglass sleeving is fiberglass sleeving coated with PVC resin, with very good flexibility and ... : natural ,white, red, black, yellow, etc.Silicone fiberglass sleeving. Acrylic fiberglass sleeving. PVC fiberglass sleeving is fiberglass sleeving coated with PVC resin, with very good flexibility and ...