Available as solid, tinted, or combination solid/tinted, Welding-Area Protective Curtains, which are made of materials that block harmful UV rays as well as being fire retardant, provide a safety barrier between the metalworking area and the rest of the shop. They to protect others from flying sparks and arc flashes as well as blocking welding-generated heat as high as 2,000 degrees F. Generally, they remain in a given area, although some are designed for portability.