Introducing the POWERTEC 8-Inch PSA Aluminum Oxide Adhesive Sanding Disc Collection. This multi-functional sanding disc kit offers a practical and inexpensive solution to many of your sanding, polishing and finishing needs. Our Sanding Discs produce consistent, high-quality cuts with a uniform finish. Each 8" sanding disc is made with premium grade aluminum oxide grains known for their superior grinding strength and durability. These PSA discs have a sticky back adhesive that allows for quick and easy installation or removal from your sanding pad. Comes with coarse, medium and fine sanding discs designed to meet many of your general workshop needs. This wood sanding tool provides impressive results when working with wood, plastic, fiberglass, painted surfaces and non-ferrous metals (aluminum, lead, zinc, lead). Anti-Clogging Coating: Prevents abrasive particles from clogging abrasive surfaces - optimizing your workflow and overall sanding performance. Resin Over Resin Bond: Both moisture and heat resistant, this bonding agent is also very strong with greater grain retention which provides longer durability. C-Weight Backing: This impressive paper backing is lightweight, yet ensures the strong and flexible adhesion needed to withstand the wear and tear commonly associated with abrasive disc sanding.