What grit sandpaper to use on wood filler?

Release Date:2023-04-18 14:17
When working on a woodworking project, you may need to use wood filler to fill in gaps, cracks, or holes in the wood surface. Once the filler dries, you will need to sand it down to create a smooth and even surface. The grit of sandpaper you use for this job will depend on the type of wood filler you are using and the level of sanding required.

Generally, the best grit sandpaper to use on the wood filler is between 120 to 220 grit. A higher-grit sandpaper will create a smoother finish, but it may not remove the excess filler as quickly. On the other hand, a lower grit sandpaper may remove the filler more quickly but leave a rougher finish. It's important to strike a balance between removing the excess filler and creating a smooth finish.

When sanding wood filler, it's essential to use a sanding block or a sanding sponge to ensure an even surface. Start with coarse-grit sandpaper, such as 80 or 100 grit, to remove any excess filler. Then, move on to higher-grit sandpaper, such as 120 or 220 grit, to create a smooth finish. It's important to use a light touch and work slowly to avoid sanding away too much filler or creating uneven spots.

 
 
In addition to the grit of sandpaper, it's also essential to consider the type of sandpaper you're using. Silicon carbide sandpaper is ideal for sanding wood filler because it's sharp and durable, making it more effective and long-lasting than other types of sandpaper. It's also important to use sandpaper with a backing that is compatible with your sanding block or sander. Some sandpapers have a sticky backing, while others use hook and loop fasteners.

In conclusion, when sanding wood filler, use sandpaper grit between 120 to 220 grit for the best results. Use a sanding block or sanding sponge to create an even surface, and work slowly and lightly to avoid over-sanding or creating uneven spots. Additionally, use silicon carbide sandpaper for its durability and effectiveness, and choose sandpaper with a backing that's compatible with your sanding block or sander.
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