The process of sanding in drywall installation can be tedious and frustrating. When you understand the proper technique you will love the end result. Applying paint on a poorly sanded drywall can be a nightmare. To avoid this we will go through a number of drywall sanding tips and make your next DIY project a success.
Having a proper sanding tool will determine how easy and proper the job gets done. It’s good to invest in a hand sander, a suitable sanding paper as well as a sanding sponge that you can use to smoothen the corners. You need to wear a mask and goggles to keep off the dust. You may even want to consider wrapping a scarf on your head. Sanding is a messy job and you need to be properly covered. You may also consider investing in a pole sander especially if working on a large surface.
If you are working on a drywall at home, take note that sanding can result in dust that could quickly invade your home. This sand can be hard to eliminate once it attracts your surfaces and upholstery. To minimize dust try and use a damp sponge to smoothen the joints instead of sand paper. There are also a number of systems designed to catch dust in sanding projects. This may be pretty costly so you may want to consider protecting vital areas of your home from dust.
A 150 grit sand paper is normally ideal. Simply purchase it and place it on your hand sander. Don’t be tempted to get a heavier grit paper because it may end up over sanding the area especially if the joint compound you used is very soft. Heavy sanding can cause unevenness and unpleasant marks to form on the surface. You can look for precut sheets of sanding paper that will fit perfectly on the hand sander.
If you notice ridges or bumps on the joints, try and avoid sanding too much especially if they are at the edge of the joints. When you sand that area excessively you may end up damaging the tape on the drywall. It would be easier to add another coat of compound on the area just to cover the edge of the seam. You can also consider repairing the section with ridges or gouges separately.
You’ll need to be more careful when it comes to sanding areas like the corners. It’s important to check out for any problem areas and focus on them. You can use a handheld light to take note of the areas that require an extra touch. You can use a hand sander or the sponge sander to fix those problematic areas. Put marks on any areas that need extra filling and then use joint compound to touch up then sand it to smoothen.
Priming the walls really helps to create a good finish. When you apply a primer, wait for it to dry completely before sanding. Priming helps to eliminate any lumps that would become very visible after painting. Sanding the area after priming also gives you an opportunity to highlight problem areas and fix them using joint compound.
Corners can be very tricky and thus require more detailed sanding. You can use a sponge sander or a small piece of folded sanding paper to work on the corners. Make sure you don’t damage the opposite sides of the corner with the sander.
Most importantly, drywall sanding should be done while applying light pressure. Over-sanding is a big issue that will create depressions or grooves that appear unsightly when you apply a fresh coat of paint. If there are electrical boxes or openings, avoid sanding that area. You may end up causing damage to the sand paper or tearing the tape. You can simply do a more detailed sanding near the electrical boxes using a sponge instead of the hand sander. Just make sure you don’t focus on a single spot for too long.
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