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

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