- All blankets have grommets on 18" centers except when noted - all blankets sewn with 1000ºf melt temperature fiberglass thread (except 599-leather, which uses Kevlar) - borders are hemmed for extra durability (except 599-leather) - actual finished size.

16 oz., Thermofelt. Light duty welding, light sparks, and spatter. Non-flammable, non-melting, non-shrinking, scratch free. Smoking and loss of tensile strength will occur when subject to molten metal. Not designed for stress relief. 1800°F working temperature. 3' x 3'. WARNING: This product can exp...

25 oz. black, vermiculite impregnated fiberglass. Heavy duty sparks, spatter, slag, 1200°F melt temperature flat surfaces, 1700°F vertical plane. .06" thick. Sizes 3'x 3'. WARNING: This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defe...