![]() It is also important to know about progressing through the grits when sanding.Įach grit level removes the scratches left by the previous grit, and prepares the surface for a smoother finish. They are often used for sanding between coats of paint or clear coat, or for finishing a surface to a high shine. ![]() These are very fine grits, and are good for achieving a smooth, polished finish. It is often used for sanding wood between coats of paint or stain, or for preparing a surface for a clear coat. This is a fine grit, and is good for smoothing out surfaces and preparing them for a final finish. It is often used for sanding wood in preparation for staining or painting. This is a medium grit, and is good for smoothing out rough surfaces and removing scratches left by the coarse grit. It is often used for sanding rough surfaces, such as unfinished wood or a surface with heavy paint or rust. This is a very coarse grit, and is good for removing a lot of material quickly. However, for certain projects such as when using epoxy, you may want to use even higher grits for an ultra-smooth finish. For most woodworking projects, we recommend using a progression of grits from 80 grit for rough sanding and ending at 220 grit for finishing prep. In general, lower grits (40 to 100) are used for rough sanding, while higher grit numbers (120 to 220) are used to prep for finishing. Here is a closeup of various Serious Grit discs to show the difference in particle sizes: We can also determine that 60 grit abrasive particles are roughly twice the size of 120 grit particles. So the larger the particle, the lower the grit number since fewer of those particles can fit in a 1"x1" square. The numbers are derived from the number of abrasive particles that fit in a 1"x1" square. For example, 60 grit sandpaper will be more coarse than 120 grit sandpaper. The higher the number, the finer the grit. Sandpaper comes in different grit levels, which are indicated by a number. What do the different grits mean in sandpaper? There's more to it than just the grit number. ![]() While sandpaper may seem simple on the surface (paper with sand on it?) it's actually quite complex with a multitude of variables that impact how it works. Most people don't put much thought into the sandpaper they buy.īut if you ended up here, you're not like most people!
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