Sia 100 Grit Belt 3 x 21 in. 2925 sialoX Cloth Sanding Belt

Description

Sia 100 grit belt stock is a practical middle-grit abrasive for shops that need one belt to handle sanding down, deburring, rust removal, and surface blending before a finer finishing pass. The 3 in. x 21 in. format fits compact belt sanders used in fabrication, repair, and finishing stations, while the 2925 sialoX construction gives the belt a cloth-backed platform for repeated metal contact.

Sia describes 2925 sialoX as an all-round abrasive for metal grinding with high edge stability, high initial tear resistance, and long life. The 100 grit version sits in the useful range between coarse stock removal and fine scratch refinement, so it can clean a weld area, break an edge, or even out a metal face without leaving the deep scratch pattern of a 36 or 40 grit belt.

Sia 100 grit belt uses

• General sanding on mild steel and non-ferrous metal
• Deburring cut edges after machining or trimming
• Removing light rust and discoloration
• Preparing metal before primer, coating, or adhesive bonding
• Blending sanding marks before stepping to finer grits

Sia 100 grit belt construction

The 2925 sialoX series uses aluminum oxide abrasive grain, closed coating, resin-over-resin bonding, and X-wt cloth backing. That construction supports both dry and wet sanding applications listed by Sia and gives the belt enough strength for edge work and repeated passes on metal parts. For buyers comparing grits, 100 grit is often the reset point that removes visible marks without acting like a heavy grinding belt.

Technical specifications

Ordering notes

Choose this belt when the job needs a balanced cut and a cleaner surface than a coarse belt can leave. For a complete sanding progression, combine it with coarser 2925 belts for shaping and finer grits for finish work. Browse related abrasives or visit Sia Abrasives for manufacturer background. Need help choosing a grit sequence? Call (800) 220-1966 or email [email protected].