- 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.

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...