
Fire retardant polymer/glass fibre cloth laminate used to make PCBs.
Found on
http://www.encyclo.co.uk/local/20827

A material used as a Substrate for a PCB, made of fibreglass & epoxy. Cheap, and reliable except where exposed to moisture, this is the most commonly used material for double sided and multi-layer boards.
Found on
http://www.vutrax.co.uk/glossary.htm
[Electronics Production] Commonly used base material for PCBs, composite material of woven fiberglass and an epoxy resin binder, FR says it is flame retardant
Found on
https://piek.international/terminology/
No exact match found.