B32 Silicone Glass Laminate

B32 Silicone Glass Laminate

B32 silicone glass laminate displays excellent high temperature stability, electrical strength and insulation resistance. One of our most popular glass laminates, B32 is commonly used in electrical insulation applications where resistances to elevated temperatures and burning (V-0 rating) are required. Other properties include low dielectric loss, low toxicity, low smoke emissions and LUL approval. This material is supplied as a direct alternative to genuine TUFNOL® 10G50.

We have a number of in-house facilities that allow for the manufacture of bespoke B32 components. Our conversion facilities include CNC routing, CNC milling, turning and drilling. To see further information along with examples of our work, please visit our machining service page.

B32 is manufactured to BS EN 60893 Standard: 3-4-PFGC201.


High temperature electrical components, thermal splash barriers, welding jigs, track resistance, microwave windows.

Key Features

  • Temperature: Up to +200°C continuous (+240°C intermittent).
  • High electrical insulation.
  • Low toxicity and water absorption.
  • Moderate mechanical strength.
  • Good chemical resistance.
  • Low smoke emission and resistant to burning.


  • BS EN 60893 Standard: 3-6-SIGC201 & 202.
  • BS 3953 Standard: SI4 & SI5 (since superseded by BS EN 60893).
  • Closest Nema Standard equivalent: Nema G7.
  • Closest MIL Specification: MIL-I-24768/17.
  • LUL (London Underground Limited) Approved (SE970).
  • Resistant to burning (V-0 rated).


Body Colour: White.
Cover Colour: White.
Sheet Finish: Satin/Matt.
Sheet Size (mm): 1220 x 1220.
Sheet Thickness (mm): 0.4 up to 100.
Technical Specification: