Description
The Sia 1950 sanding discs run the siaspeed 1950 abrasive across the full 40 to 1500 grit range, so one product line covers heavy stock removal through fine finishing. The discs come in a box with a choice of diameter, hole pattern, and backing to match your sander and dust extraction setup.
Where the Sia 1950 sanding discs Are Used
These discs work on body filler, primer filler, lacquer, and paint during surface treatment and refinishing. Bodyshops use the coarse grits to cut down filler and the fine grits to key topcoats before painting. Woodworkers reach for the same line to sand solid wood and level varnish. The siasoft layer in the finer grades cushions the abrasive so it follows contours without leaving deep scratch marks.
How the Sia 1950 sanding discs Hold Up
The 1950 grain is a high performance aluminum oxide chosen for a long working life and a uniform scratch pattern. A consistent coating means each disc cuts at a predictable rate from first contact to the end of its life, which keeps finish quality even across a job. The hole patterns align with common random orbital pads to pull dust through the disc and off the surface. Switching between grades is quick because the backing and hole layout stay consistent across the line, so a single sander setup carries a part from rough cut all the way to final finish without changing pads.
Specifications
| Abrasive line | siaspeed 1950 |
| Grit range | 40 to 1500 |
| Grain | Aluminum oxide |
| Backing | Paper, hook and loop or PSA by selection |
| Format | Discs, sold per box |
| Origin | Switzerland |
Choose the diameter, hole count, and grit that match your pad and your stage of work, then browse our abrasives for pads, blocks, and adjacent grades. For background on grain types and coated abrasive construction, see Sia Abrasives.
Need Help?
Need help matching grit and backing to your sander and substrate? Call (800) 220-1966 or email [email protected].







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