The sanding process is an important step in the wood finishing process. The sanding process is mainly done to prepare wood media so that the finishing application process is easy to do. In addition to preparing wood media, the sanding process is usually also carried out in the finishing process. Namely after the wood filler or wood putty application. The process of sanding media or wood substrates is very important to do. Because the results of good sandpaper will facilitate the finishing process later. In fact, many parties said that the failure of the sanding process could be the cause of the finishing failure.
Generally, sanding functions to smooth the surface and clean the wood media from dirt and wood defects by rubbing it on the work plane. Usually this process uses paper / sandpaper specifically for wood. Wood sandpaper itself is a type of sandpaper that is commonly used to flatten or smooth wooden workpieces. The sanding function becomes very important because the results of the sanding will greatly affect the success of the finishing process that will be done later. The numbers on paper sandpaper and roll sandpaper are numbers 24, 30, 36, 40, 50, 60, 80,100,120,150,180, 220, 240, 280, 320, 360, 400, 500, 1000 and so on. For grinding (leveling and forming), usually using coarse grits (24-80). As for blending, usually using medium grit sandpaper (100-180). For finishing using fine grit (240-400), to smooth using super fine (400-600). And for super finishing using micro fine (800-1200).
In addition to being in the form of paper / cloth, at this time we also know the sponges. This type of sandpaper is very effective for sanding wood surfaces that have a fairly rough texture. So that after the sanding process is complete, we don’t lose the texture. The texture still looks rough but when touched smooth. Unfortunately this type of sponge sandpaper can only be applied manually.