Description
1950 siaspeed disc is a 5 inch no-hole hook and loop abrasive for fine sanding on coatings, lacquer, primer, solid surface, and painted parts. This 1000 grit version sits in the finishing range of the Sia 1950 family, where film-backed fine grits help produce a consistent scratch before polish or final inspection.
1950 siaspeed disc Benefits
- 1000 grit cut supports final sanding steps before polish, blend, or finish coat.
- Film backing in the 800 to 1500 grit range helps hold a uniform finish pattern.
- Resin over resin bond keeps abrasive grain anchored through repeated passes.
- Stearate treatment helps reduce loading when sanding coatings and filled surfaces.
- No-hole 5 inch format fits common orbital sanding workflows where dust extraction holes are not required.
Use this disc when the surface has already been shaped and the job moves into scratch refinement. It is especially useful in countertop fabrication, cabinet finishing, paint prep, automotive repair, and sign work where a controlled final sanding pattern matters.
1950 siaspeed disc Applications
- Fine sanding lacquer, primer, clear coat, and painted surfaces.
- Refining solid surface countertops before matte, satin, gloss, or high-gloss finishing.
- Preparing composite and polyester surfaces for polish or blending.
- Removing small dust inclusions and orange peel effects before final correction.
- Finishing wood and cabinet parts after earlier grits have leveled the surface.
Surface Preparation And Use
Work through the grit sequence instead of jumping straight to 1000 grit. Remove dust between steps so loose abrasive and sanding debris do not create random scratches. Keep the pad flat, use moderate pressure, and let the abrasive do the cutting.
On high-value solid surface, lacquer, or painted parts, test the finishing path on scrap or a hidden area first. Replace the disc when it loads, curls, or stops cutting cleanly. A worn disc can generate heat and leave haze that takes extra polishing time to remove.
Technical Details And Documentation
Sia lists the 1950 family as coated abrasives with grit range 40 through 1500, film backing for 800 through 1500, resin over resin bonding, stearate from 80 grit, and high finishing performance. Review current information from sia Abrasives before standardizing a sanding process.
Dispensing And Ordering Help
For related sanding discs, interface pads, and finishing supplies, browse Chemical Concepts abrasives. For help choosing a grit path for solid surface, wood, coatings, or composite work, call (800) 220-1966 or email [email protected].







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