Polyester Glass

POLYESTER GLASS is specifically, cured unsaturated polyester resin in a non-woven glass mat, containing aluminium trihydrate, less than 2% organic peroxides and metallic stearates.

Available in sheet format this material is exclusively a low voltage electrical insulator although it has been used as a low cost non-metallic substitute for jigs and fixtures.

This material is classified under NEMA specifications as Type GPO-1, 2 or 3.

Polyester glass can be characterised by the following properties:

• Low cost
• Low temperature properties
• Low electrical insulation value
• Good punching grade

Fields of application: slip ring bodies, busbar supports, low temperature electrical insulators and terminal boards.