Instead of sandpaper, which is used for stripping paint or smoothing filler during auto body work, scuffing pads are designed for scuff sanding — a less aggressive job where instead of sanding down to the bare material, you simply add a "scuff" to the primed or coated surface. This process essentially leaves the surface slightly textured. Scuff sanding is often necessary because most modern base and clear coat paint systems rely on a chemical bond for strength and durability. These systems may not be able to establish this chemical bond with your existing surface. Using scuffing pads, you create a "mechanical" bond — a scuff — which essentially gives the base coat or clear coat paint system a series of edges to adhere to. The result is a smooth, long-lasting, and professional grade finish for your vehicle.