Review on Neiko 10909A Fiberglass Welding Grommets by James Hardy

As other reviewers have noted. When I weld my metal parts, the protective layer is about two inches lower. I weld the edges so sparks and molten metal fall off the edge of my work onto the ceiling. Hot metal spatter will discolor and LIGHTLY melt the surface of the blanket. So the blanket should last forever. I mainly use it to cover my woodwork bench when welding jigs over it. It's perfect for this purpose, it keeps my wood workbench from burning through.