The grit of sandpaper is identified by a number, the lower the number the rougher the sand paper, 36 grit is very rough and should be used on surfaces that have multiple layers of paint, 50 grit is the most common grit used on exteriors with minimal surface preparation.
Choose The Right Grade of Sandpaper
- High-Grit Sandpaper. The higher-grade represents the finer abrasive. It helps to get smooth wood surface finishes. It is…
- Low-Grit Sandpaper. Likewise, the high grade, the lower grade describes coarser abrasives. As mentioned above, this is…
- 100-Grit Sandpaper. The 100 grits are considered as medium grit. As I mentioned, you can…
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Frequently Asked Questions
What kind of sandpaper to use on unfinished wood?
100 to 150 Grit Sandpaper: Medium grit sandpaper makes a good starting point for most projects, from sanding unfinished wood to removing old varnish. 180 to 220 Grit Sandpaper: Finer grit sandpaper is great for removing the scratches left by coarser grits on unfinished wood and for lightly sanding between coats of paint.
What are the different grades of sand paper?
The sandpaper grades explained that there are several standards set for the coated abrasives but the common ones that are in use are sandpaper grades by the Federation of European Producers of Abrasives (FEPA) and sandpaper grades chart prepared by Coated Abrasives Manufacturer’s Institute (CAMI). Different grades of sandpaper have different uses.
What's the best grade to use for sanding wood?
180-220 sandpaper grades are unsuitable for sanding wood that is meant to be polished. These are used for preprocessing and equalizing solid wood or wood veneer after they are wetted. 180 to 400 sandpaper grades for paint are used for finishing work, sub-layer and putty.
What kind of sandpaper to use to remove scratches?
180 to 220 Grit Sandpaper: Finer grit sandpaper is great for removing the scratches left by coarser grits on unfinished wood and for lightly sanding between coats of paint.