Used with water-based floor finish stripping solutions to remove old soiled floor finishes and sealers; Also can be used to clean heavily soiled surface floors such as concrete when used with appropriate cleaning chemcials; Pad is made of nylon and polyester fibers in an open textured non-woven construction; Abrasive particles are dispersed throughout and bonded to the non-woven construction with a durable adhesive; Industry standard - consistent proven performance with a long pad life.