How Do You Use A 3M Sand Blaster Drywall Sponge?
The 3M SandBlaster sanding sponges are small, angled blocks that have two different types of abrasive. One side has a fine grit, similar to 150-grit sandpaper. The other side is coarse grit, similar to 100-grit sandpaper. Both sides are useful for sanding drywall. Use the coarse side when you need to sand away a lot of material, but keep in mind that the sanding marks will appear through paint, so you will have to coat the area with joint compound after sanding. The fine grit does not leave marks that show through paint, so you can use this side for final touches before paint. Cover any valuables or furniture with drop cloths or sheets. Drywall dust is very fine, so it floats in the air for a long time and can spread all over a house. If possible, hang drop cloths from the ceiling to keep outside areas blocked off. Place the sanding sponge over the work area. If you are working in a tight corner, such as around moldings or windows, you can use the angled end of the sponge to get in clo
