Sia 2925 SialoX 3 x 21 Inch Sanding Belt, 320 Grit

Description

The Sia sanding belt in this row is a 3 x 21 inch 2925 sialoX straight cloth belt in 320 grit, packed 10 per box for fine sanding and surface finishing. The aluminum oxide abrasive and X-weight cloth backing are built for consistent cutting, high edge stability, and long life on portable belt sanders used in shop finishing work.

Where this Sia sanding belt is used

Use the 320 grit belt after heavier stock removal is complete and the part needs final sanding, blending, or surface refinement. The 2925 sialoX product family is used on steels, non-ferrous metals, wood, and general fabrication materials in both dry and wet sanding applications. The narrow 3 inch width and 21 inch length fit common handheld belt sanders used for edge work, weld cleanup, and small-panel finishing.

How this Sia sanding belt performs

Aluminum oxide gives a balanced cut that holds up across metal and woodworking tasks without the cost of a more specialized ceramic or zirconia belt. The cloth backing resists tearing better than paper when the belt tracks around tight wheels or catches an edge. For best results, let the abrasive do the work. Too much pressure builds heat, loads the belt, and shortens life before the 320 grit scratch pattern has fully developed.

Sia sanding belt specifications

Choose coarser grits for weld prep or rust removal, then step up to this 320 grit belt for finishing passes. Keep a clean belt path on the sander and replace belts that show glazing, frayed edges, or heat burn. For related belts, discs, and pads, browse abrasives. For the manufacturer abrasive line, visit Sia Abrasives.

Need Help?

Need help choosing sanding belt grit sequence for metal or wood finishing? Call (800) 220-1966 or email [email protected].