Welding Blanket Protective Material Fiberglass Protective Material Coating Uncoated Maximum Temperature 1 000 Degrees F Overall Length 6 ft Overall Width 6 ft Protective Material Color Tan Protective Material Weight 18 oz/sq yd Protective Material Thickness 0.04 in Grommet Location Two on Each Corner Standards FM Approved NFPA701 Duty Rating Light Grommet Spacing 24 in Fastener Type Grommets Grommet Hole Diameter 4/5 in Grommet Material Brass