For heavy duty welding - sparks, spatter, and light slag. Carbonized fiber is the softest and toughest welding protection ever. Steiner's best-selling welding blanket. Not grommeted and FM approved. Not recommended for stress relief. Since they were first established in 1975, Steiner Industries has emerged as one of the premier manufacturers and suppliers of welding safety products, gloves, protective clothing, and curtain-style industrial partitions. Steiner Industries is built around a commitment to quality products, manufacturing excellence, and superior service. Their products are carefully designed to provide the utmost level of safety and increased productivity in the workplace.