10 inch Cloth Backed Zirconia PSA Discs are manufactured using heavy duty y-weight cloth that is covered in premium zirconia grains. These 10" Zirc PSA sanding discs are resin bonded. The resin bond is a strong bonding agent which also contains a grinding aid. The resin bond keeps the zirconia grains on the cloth backing and the grinding aid prevents loading and provides an element of heat resistance to extends the useful life of the disc. The zirconia-alumina abrasive provide a faster cut and longer life than aluminum oxide varieties. Zirconia can outlast aluminum oxide 3-4 times, making them a better option for medium to heavy stock removal especially on metal applications. Additionally, the Y-weight cloth backing is much stronger than a paper alternative and will resist tearing or edge-wear. These 10 inch zirconia cloth backed PSA sanding disk can be used on a wide variety of materials including wood, plastics, all ferrous and non ferrous alloys, but excels on jobs grinding metal. These 10 inch adhesive sanding discs are extremely versatile and can be used for sanding, grinding, deburring, blending, finishing, and polishing applications. Each PSA or pressure-sensitive adhesive disc features a high strength "peel to reveal" adhesive backing. When the paper covering the adhesive is removed the disc should be pressed onto a backing pad or steel disc pad that is attached to a disc sander, random orbital sander, platen disc sander or stationary disc sander. The adhesive used on these PSA Discs are super strong and will not come loose during use. MADE IN USA.
I mounted this disk on a 10" aluminum plate and mounted it on my table saw. I then use it to put a rough grind on my planes blades and chisels (I make sure to thoroughly vacuum all sawdust from the saw's base beforehand). These disks grind metal very quickly and I am convinced the large grit allows for increased airflow over the blade and keeps things cooler. Obviously I am cooling the blades often as I grind. When I am finished I used a finer 60 grit 9" disk I bought from Empire as well that I put on my stationary sander. That gets me to a point where I can give the blades a final honing with my Japanese waterstones. But this initial sanding is a real boon to removing deep nicks from a blade. Seems like a great product and they are right when they say its designed to remove metal fast.Douglas Brooks Boatbuilding
Jul 31st 2019