The glass fiber may be randomly arranged, flattened into a sheet (called a chopped strand mat), or woven into a fabric. The plastic matrix may be a thermosetting plastic â most often epoxy, polyester resin â or vinylester, or a thermoplastic.he glass fiber may be randomly arranged, flattened into a sheet (called a chopped strand mat), or woven into a fabric. The plastic matrix may be a thermosetting plastic â most often epoxy, polyester resin â or vinylester, or a thermoplastic.
Signs and symptoms of black hairy tongue include: Black discoloration of the tongue, although the color may be brown, tan, green, yellow or white. A hairy or furry appearance of the tongue. Altered taste or metallic taste in your mouth. Bad breath (halitosis)
Hairy leukoplakia is a type of leukoplakia that affects people with a weakened immune system (the bodyâs natural defence against infection and illness), particularly those who have HIV. It almost always occurs on the side (or both sides) of the tongue and doesn't cause pain or any change in your sensation of taste.