by Cameron Easey
Dinosaur Image by Scott Williams from Fotolia.com
You can sand rubber parts, such as those on a rubber bumper, to remove scratches or sand the primer when painting. The rubber sanding process requires you to use a technique called wet shipping, which smooths the surface of the rubber without leaving sanding marks. You can sand the rubber parts by first getting the correct type of sandpaper to use on the rubber surface.
Fill a spray bottle ¾ filled with warm water.
Place a piece of 400-grit sandpaper on the sanding block.
Spray the piece of rubber that needs to be sanded with a generous amount of water from the spray bottle.
Dampen the 400-grit sandpaper with the spray bottle until it is damp.
Begin sanding the rubber by making several back and forth passes. You can also sand in an “X” shape on the surface. Continue sanding until the surface is smooth.
Spray the gum with the spray bottle to wash off any loose material. Dry the rubber part with a cloth or rag.
Examine the rubber piece for any defects. If you don’t find any, let it sit for a day to dry. Repeat steps 3 through 6 if you still see defects.
Place a piece of 600-grit sandpaper on the sanding block. Spray the rubber piece with the spray bottle and dampen the 600-grit sandpaper.
Sand the rubber with 600-grit sandpaper. Spray the rubber with the spray bottle to wash off any loose material. Dry the rubber part with a cloth or rag.
Repeat this process for any other pieces of rubber that you need to sand down.
Articles will need
- Sanding block
- 400-grit sandpaper
- 600-grit sandpaper
- Spray bottle
- Cloth or rag