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Using Sandpaper for Drywall
- Clean the wall with soap and hot water. To prepare the wall for sanding, first fill a bucket with hot water and soap. Then, soak a cloth in the water and wash off the wall. This will remove any dirt or markings that the paint has accumulated, simplifying the rest of the job.
- Purchase a sanding block or sander to use. Unfortunately rubbing sandpaper against the wall won’t work very well. Instead you will need to invest in a sanding block or a sander. A sanding block is a small block of material that you can wrap sandpaper around, making it easier to sand flat surfaces. A sander is a automated tool like a drill that you load sandpaper into and it sands the surface for you.
- To use a sanding block, wrap the sandpaper around one side of the block and grip it with your hand from the other side.
- Sanders can differ in how you load them with the sandpaper, but generally they have a slot that you can load the sandpaper into before turning it on. If you haven’t used a sander before, a sanding block is a safer option.
- A coarser grit on the sandpaper is acceptable because you’re aiming to strip the unwanted paint. Use 80-grit sandpaper if you’re looking to remove globs of paint.
- Sanding a wall will cause a risk of inhaling toxic dust, so wear a mask before beginning.
- Sand away the unwanted paint. Rub the coarse side of the sandpaper against the paint. Move the sanding block or sander back and forth in 1 square foot (0.09 square meter) sections. Apply lots of pressure to the wall if you are using a sanding block.
- Sand the unwanted paint until the entirety of the paint becomes dull. Then, wipe away the dust.
- Strip the paint if you want to remove it entirely. If you prefer to remove the paint entirely as opposed to painting over it, use a paint scraper to peel off the remaining unwanted paint.
- Place the paint scraper’s blade at the bottom of the unwanted paint, apply pressure to the blade, and slide it under the unwanted paint, peeling the paint off.[
- The sanding process will have weakened the paint, making it easier to strip.