As a general rule, if you started with 80-grit paper, skip to 120 grit paper, or if 100 then to 150. Since both 80 grit and 100 grit paper leave minor scratches, the next step is to sand with a finer grit paper and replace these scratches with less noticeable ones. Keep in mind that the goal when sanding is to take away material from the surface to remove imperfections and/or shape edges, so you’ll want to start with a sandpaper grit that is just coarse enough to remove these imperfections without gouging into the material further typically this is an 80 grit for planed or shaped wood and a 100 grit if the wood does not contain blemishes. Light stock removal and surface levellingįinal surface smoothing and initial between coats Heavy removal, stripping, dimensioning and shaping For finishing surfaces smoothly, use extra fine sandpaper with 360 to 400grit. 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. Whether you choose to use a power sander or sand by hand, you will want to make sure to begin your project by using the finest grit of sandpaper to start that allows you to get the job done effectively. Sandpaper sheets for versatile hand sanding Sanding discs for smoothing flat surfaces Some random-orbit sanders accept peel-and-stick PSA (pressure sensitive adhesive) abrasive discs, while others use hook-and-loop (a.k.a.: Hook & Sand) discs.įor every sanding project, there’s a complementary abrasive:įlexible sanding sponges for sanding contoured surfaces The random orbital sander is the more common of these finishing sanders because they can extract dust if using a vacuum pattern and they can give a balance of light stock removal and finishing with one tool. Quarter sheet sanders, half sheet sanders, and random orbital disc sanders are all options. Intended for light stock removal, between coats sanding and final finishing, these palm sanders offer great versatility. When it comes to speed and heavy material removal, the belt sander can’t be beat.įinishing sanders are a DIYers best friend as they are light, easy to control and relatively quiet. With all the sander types on the market, how do you know which to choose?īelt sanders are invaluable for smoothing large, flat surfaces and removing paint, varnish or stain. For larger jobs and flatter surfaces, electricpowered sanders are the best, quickest, and easiest way to sand wood. For smaller, harder-to-reach and more intricate areas like furniture or molding, you’ll likely want to use sandpaper sheets or sponges that offer the versatility and mobility to reach tighter areas when removing paint and finish for the next step. When it comes time to tackle a home project that involves wood sanding, first consider the size of the piece when determining project needs. For best results, follow the simple steps below.ġ Selecting the right abrasive and/or tool for the job at hand Yet, the quality and uniformity of finished piece is dependent on proper sanding. Each time you advance to a higher grit sandpaper, you remove the scratches from the previous layer.Sanding is often the most overlooked surface preparation step with bare wood as people generally think “bare” means ready-to-go. 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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