... Fiberglass fire blanket Description: Welding blankets are made of fiberglass loomstate, caramelized fiberglass, coated fiberglass cloth, ... from sparks, spatter, slags generated by welding or metal cutting applications, have been widely used in many ... 32OZ to 50OZ)- heavy sparks, spatter, slag, possibility of molten metal Difference between coated welding blankets and uncoated welding blankets: ...