>FRP or fiber reinforced plastic is what most people call fiberglass.
>
>I don't think the lids are made in this manner. If you saw a burned plastic
>lid with a pile of glass, it is probably the insulation material under the
>lid.
>
>BenT

FRP? This could be carbon, steel or hemp. Never heard of this
acronym. Normally it is called GRP. The others COULD be called CRP
and HRP... or fibercarbon and fiberhemp? And of course there's
kevlar... what about spaghetti?