
Bakelite & Fibreglass Insulating Tubes –
Rigid Electrical Tubing Cut to Size
Custom-manufactured sleeves for high-voltage, thermal, and structural applications
Our range of Bakelite® and fibreglass insulating tubes provides durable, high-performance insulation for electrical and mechanical applications. These rigid tubes are manufactured to size and are well-suited to demanding industrial environments where strength, dimensional stability, and thermal resistance are critical.
Available Options:
G11 Glass Tube – High mechanical strength and excellent thermal stability. Suitable for high-voltage insulation and moisture-prone environments. Related to our FR4/G11 epoxy laminate sheets.
Fabric Bakelite Tube – Reinforced with fabric layers for added strength and durability. Ideal for applications requiring high impact resistance and mechanical support. See also our F3 phenolic cotton laminate.
Paper Bakelite Tube – Cost-effective insulation made with paper-reinforced phenolic resin. Best for low to moderate electrical and thermal applications. Matches our P1 phenolic paper laminate.
Key Features:
- Electrical insulation for motors, transformers, and switchgear
- Excellent dimensional stability and machinability
- Custom sizes available
- Suitable for both electrical and structural support roles
Common Applications:
- Transformer bushings
- Terminal boards and electrical insulators
- Mechanical sleeves and spacers
- Custom CNC machined insulation parts