236U | Diameter 5″ | Grit P80 | 100 Discs Per Roll Adhesive backing allows for quick application and easy removal. Convenient disc rolls eliminate the need to remove disc liners from individual discs. Strong, C-weight paper backing provides extra durability when compared to lighter weight paper backings. Aluminum oxide mineral is durable, cuts fast, and performs well on many surfaces. Load-resistant coating helps prevent premature loading of the disc surface to maximize cut and extend the life of the abrasive grains.