![]() It’s used for final sanding and polishing of thick finishes.įree Printable Sandpaper Grit Cheat Sheet It’s perfect for the final sanding of finishes and the final sanding of wood. ![]() Super fine grit sandpaper is 400-600 grit. At this grit, you star the polishing of wood. 320-360 Gritģ20-360 grit sandpaper is extra fine. 240 GritĢ40 grit sandpaper is very fine and makes and excellent choice for sanding finishes between coats. It’s used for sanding of bare wood and some sanding between coats. 150-220 Gritġ50-220 grit sandpaper is very fine. It’s not suitable for removing varnish or paint from wood though. 100-120 Gritįine grit sandpaper of the 100-120 grit variety is best for sanding bare wood in preparation for finishing. Medium or 60-80 grit sandpaper is good for sanding bare wood in preparation for finishing and for the gentle removal of varnish. It is also good for the rapid removal of material. 40-50 GritĤ0-50 grit sandpaper is fairly coarse. ![]() It works well for very fast removal of material, hardwood flooring initial sanding. 24-26 GritĢ4-26 grit sandpaper is extra coarse. ![]() You could use 120 as a medium, do all the things sandpaper, 80 grit if you want to really rough up a finish or do a little shaping and 220 grit for final sanding between coats of paint or poly.īut if you want a little more flexibility, here is a fuller picture of the sandpaper grits and their uses. In fact, you can likely get away with having only those three grits of sandpaper on hand for typical do-it-yourself projects. Sandpaper Grits and Their Uses The most commonly used sandpaper grits are 80, 120 and 220. There ya go! Now you have a handy reference when you tackle those DIY projects!.Free Printable Sandpaper Grit Cheat Sheet.You could use 120 as a medium, do all the things sandpaper, 80 grit if you want to really rough up a finish or do a little shaping and 220 grit for final sanding between coats of paint or poly. The most commonly used sandpaper grits are 80, 120 and 220.Each time you advance to a higher grit sandpaper, you remove the scratches from the previous layer. Many jobs require you to “go through the grits.” This means you start the project using lower-grade grit and use finer pieces of sandpaper as you progress. For finishing surfaces smoothly, use a super fine sandpaper with 360- to 600-grit. For heavy sanding and stripping, you need coarse sandpaper measuring 40- to 60-grit for smoothing surfaces and removing small imperfections, choose 80- to 120-grit sandpaper. You need to choose the grit size of sandpaper depending on the particular job you are trying to accomplish. Open-coated sandpaper has gaps between the grits, allowing sawdust to gather so it doesn’t interfere with the sanding, whereas closed-coated sandpaper doesn’t have those open spaces. The density of the grit is important, too. The larger the grit size, the more edges there are and the smoother the sandpaper. In addition, sandpaper is measured by its grit size, or number of sharp particles per square inch of sandpaper. Industrial-grade sandpaper uses higher quality materials than commercial grade but is only available in specific stores. Different grades of sandpaper represent the difference in quality of the abrasives, the backing material and the bonding agents. The abrasive edges are glued onto backing material such as Kraft paper with a bonding agent. Sandpaper contains numerous sharp edges that cut away at wood or metal.
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