| Item | PA631 |
| Backing | Polyester Y-wt (P24~P60), X-wt (P80~P400) |
| Bonding | Resin over Resin |
| Grain Type | Premium aluminum oxide (tough) |
| Coating | Size coating with an active filler |
| Grit Range | P24 ~ P400 |
| Workpiece | Carbon steel, cobalt and nickel alloys, stainless steel, |
| aluminum and zinc die casting, tool making industry | |
| Application | Wet & dry grinding, heavy stock removal, |
| deburring forgings and castings | |
| Advantages | high stretch resistant and very stable backing material, |
| high grain-adhesion, cool cutting, high cutting performance, | |
| ski making industry |