Your description leaves much to be desired.
You might look at sheet molding compound, a more or less generic term for Glass fibers impregnated with some type of (mostly) B-staged thermoset resin.
Sheet moulding compound - Wikipedia, the free encyclopedia
"You say I started out with practically nothing, but that isn't correct. We all start with all there is. It's how we use it that makes things possible." -- Henry Ford