Description
Sia 220 grit belt stock gives metalworking and fabrication teams a fine 3 in. x 21 in. abrasive for controlled finishing after heavier grinding steps. The 2925 sialoX line is built with aluminum oxide grain on X-wt cloth, giving the belt the backing strength needed for edge work, deburring, rust removal, weld prep cleanup, and final sanding on steel and non-ferrous metals.
At 220 grit, this belt is best suited for refining scratches, blending tool marks, and preparing a surface for the next finishing step rather than aggressive stock removal. It is a useful shelf item for shops that keep several 2925 sialoX grits on hand and need a finer belt for the last passes on mild steel, aluminum, brass, or other general fabrication materials.
Sia 220 grit belt applications
- Final sanding after coarse shaping or weld dressing
- Blending fine scratches on unalloyed and low-alloy steel
- Light deburring on brackets, panels, and machined parts
- Surface treatment on non-ferrous metals before coating or assembly
- Dry or wet sanding where a cloth-backed belt is preferred
Sia 220 grit belt construction
Sia lists 2925 sialoX as a general-fabrication abrasive with aluminum oxide grain, closed coating, resin-over-resin bond, and X-wt cloth backing. That combination gives a stable belt for edge contact and repeated passes while still producing the cleaner finish expected from a fine grit. The strong cloth backing also helps the belt hold together under normal shop pressure better than a lighter paper abrasive would.
Technical specifications
| Property | Value |
|---|---|
| Brand | Sia Abrasives |
| Series | 2925 sialoX |
| SKU | SIA6942.8808.0220 |
| Size | 3 in. x 21 in. |
| Grit | 220 |
| Grain | Aluminum oxide |
| Backing | X-wt cloth |
| Bond | Resin over resin |
Ordering notes
Use this fine grit belt when the part already has its shape and needs a cleaner surface. For coarser cut or faster scratch removal, pair it with lower grits from the same 2925 sialoX family. Browse related abrasives or visit Sia Abrasives for manufacturer background. For help matching grit sequence to metal type, call (800) 220-1966 or email [email protected].







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