These PSA or sticky-back discs are made from the same from the same zirconia alumina product we use to make our zirconia sanding belts.
- PZ633 Zirconia Alumina
- Cloth backed polyester
- Resin over resin
- Grits 24, 36, 40, 50, 60, and 80 grits are polyester Y-weight
- Grits 100 and 120 are X-weight polyester