Fiberglass backing plate, which is one of the strongest support for series of grinding disc, including flap disc, felt disc, non-woven wheel etc. As an important role in flap disc, its main function is “Back”. It is like the one, who is always back to you. Backing is made by fiberglass cloth, with resin , it is always on the way to be better and better to support the product it needs to, we are on the way to be better and better to support you.