Tough Woven Fabric Standard Abrasives™ Surface Conditioning Discs provide a more compact structure of non-woven fibers than Buff & Blend products. Our RC disc has a woven fabric (scrim) embedded in the nylon structure to provide additional strength and durability. This helps extend the life of the disc and allows for extended use on ferrous materials where final finishing is important. This material is great for general use, delivering a solid mix of durability, flexibility, and cut rate. Mixed Materials Our Standard Abrasives™ Surface Conditioning RC Discs are made of a tough, but flexible nylon mesh that fits any contoured surface. This mesh is also laced with aluminum oxide abrasive. Aluminum oxide discs are a good match for operators who desire an all-purpose versatility and economy. The mineral cuts fast while blending and deburring and should be used for applications on ferrous metals and composites. Aluminum oxide discs feature a premium grain with higher fracture strength, meaning the mineral will fragment and renew more readily. They are available in grades ranging from Very Fine to Coarse. Strong Backing for Better Performance For the best results, it is recommended that a Standard Abrasives™ brand holder pad is used. Tests have shown that surface conditioning discs, when used in conjunction with the Standard Abrasives holder pad, have a greater durability and performance rate. These pads also assure that pressure is applied evenly all the way to the edge of the disc.