Glass Fiber Insulation
Fiberglass Tube / Non-woven Fabric
Service temperature
Medium-highUp to 300°C
Main applications
The core of high-temperature cable protection and electrical insulation
fiberglass sleeving and non-woven fabric
Key Features
⚡
Dielectric performance
Glass-fiber based — retains electrical insulation at temperature, purpose-made for cable and wire sheathing
🔥
High-temperature resistance
200–300°C continuous — ideal for protecting motor, transformer and heater wiring
🛡️
Mechanical protection
Braided sleeve construction protects cable from abrasion, impact and UV
📏
A wide range of bore sizes
Inside diameters from 2 mm to over 50 mm — matched to cable gauge and wiring specification
🧵
Non-woven fabric supplied alongside
Glass-fiber non-woven — doubles as insulation facing, filter media and acoustic material
Specifications
| Material | Braided / non-woven E-glass fiberglass |
| Inside diameter sizes | 2 mm to over 50 mm (custom available) |
| Service temperature | Up to 300°C (higher when coated) |
| Surface treatment | Untreated, or silicone / varnish coated |
| Supply form | Sleeve (roll or cut lengths), non-woven (roll or sheet) |
| Main applications | Cable insulation sheathing, insulation facing non-woven |
Applications
Electrical & electronics
- •Coil wire sleeving in motors and transformers
- •Protecting heater and thermocouple wiring
Industrial wiring
- •Sheathing internal wiring in hot equipment
- •Organising wiring inside control panels
Insulation finishing
- •Non-woven facing over insulation
- •Surface finishing of pipe insulation
Other industries
- •Glass-fiber non-woven filter media
- •Acoustic absorption media
Notes
- ※Silicone coating improves flexibility and raises the service temperature to 250°C.
- ※Special bore sizes and thicknesses can be made to order subject to a minimum quantity.

