【FLAME RETARDANT MATERIALS】The welding curtain is made of 100% fiberglass, 650gsm, thickness 20mils (0.5mm).with up to 1,000F(537°C) working temperature for maximum thermal protection in any light to heavy duty general welding applications . 【CREATE SAFE AREA】Use this flame retardant welding curtain to help protect machinery, equipment, flammable materials, furniture and other objects surrounding the space. This welding curtain is suitable for the use by welders, oxycut and cutters. 【VISIBILITY WINDOW】When the height of the welding curtain is greater than 2.4m, we will splicing a red transparent window, which is convenient for you to manage the work area. (When the height is less than 2.4m, it is a complete curtain without opening the window) 【REINFORCED AND EASY HANGING】Welding curtain top is equipped with heavy-duty brass grommets for secure and easy hanging.with a spacing of 30cm to support weight. Much more thicker than the common fire blanket. 【VARIOUS APPLICATIONS】Protect your furniture, flooring, wood railings, and yourself from sparks, embers, molten metal, and heat that comes from welders, grills, smokers, and more. It's a safety shed for camping, smokers, grills and bonfires.