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)
Tongue cancer usually develops in the squamous cells, the thin, flat cells that cover the surface of the tongue. Common tongue cancer symptoms. Symptoms of tongue cancer are very similar to symptoms of other types of oral cancer. It can often be mistaken for a cold that wonât go away, or a persistent sore in the mouth. Other tongue cancer symptoms and signs may include: Persistent tongue and/or jaw pain.