Fiberglass sleeving, good flexibility, heat resistant, excellent tensile strength, used in home ... ,auto SRG Silicone Fiber glass sleevingMain material: Fiber glass yarn, coated with silicone resinProduct features:Rated voltage: 300VRated temperature: -60¬+200Insulator ... +0.60 -0.000.48 +/- 0.03 mm Heat resistant fiberglass sleeving