BST-FGS-ESC Silicone Extruded fiberglass sleeve is a combination of silicone and rubber extruded onto a braided fiberglass sleeving. It is used as insulation of leads and connections in electrical and electronic components (transformers, coils, relays, solenoids etc.) 
It is resists most acids and alkalis and is unaffected by most bleaches and solvents. It is highly flexible and conformable. 
It provides excellent protection for industrial wires, cables, hoses (hydraulics), tube and pipes and also provides thermal insulation and personnel protection.