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eBay£11.45Visit shop SIA Abrasives Sanding Discs 6"" 150mm P40 Grit Pack of 50 Orbital Hook Loop
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The Sia Abrasives 7944 SiaOne Sanding Discs are professional-grade abrasives designed for woodworkers, metalworkers, and automotive professionals who require aggressive material removal. These 150mm P40 grit discs excel at stripping old finishes and leveling rough surfaces quickly, though their coarse grit makes them unsuitable for fine finishing or polishing tasks.
| Model Part Number | 7425.4595.0040 |
|---|---|
| Brand | Sia Abrasives |
Yes, the 7944 SiaOne discs are effective for heavy-duty metal sanding, such as removing rust or smoothing out weld beads.
These discs are compatible with any standard 150mm random orbital sander that utilizes a hook-and-loop (Velcro) attachment system.
The discs are manufactured to accommodate standard hole patterns found on most 150mm orbital sanders to allow for effective dust extraction.
P40 is very coarse and intended for rough stock removal. It should only be used in the initial stages of a project and followed by finer grits to avoid deep scratch marks.
You will notice a significant decrease in the cutting rate and may see visible wear or loss of abrasive grit on the disc surface.
Ensure the backing pad is clean and dry. If the hook-and-loop interface is worn on your sander, consider using a pad protector or replacing the backing pad.
Check that the holes in the sanding disc are perfectly aligned with the extraction holes on your sander's backing pad.
Verify that P40 is the correct grit for your needs; move to a higher grit (e.g., P80 or P120) if the surface requires a smoother finish.
To set up these discs, ensure your random orbital sander's backing pad is clean and free of debris. Align the disc carefully with the vacuum extraction holes on your sander's backing plate to ensure efficient dust collection during operation. These discs are compatible with any 150mm orbital sander equipped with a hook-and-loop attachment system. For care, store the discs in a cool, dry place to prevent humidity from affecting the adhesive backing. If the disc becomes clogged with heavy debris, you may lightly clear it with a dedicated abrasive cleaning stick, though P40 discs are often best replaced once the grain has dulled from sustained use.
