03:31PM | 07/07/01
Member Since: 07/06/01
1 lifetime posts
When preparing interior walls to paint, what grit of sand paper should be used in order for the new paint to adhere properly and easy.

The walls already have paint on them already, just changing the colour.


03:38AM | 07/09/01
Member Since: 10/19/98
223 lifetime posts
If the walls are in good shape you don't need to sand. Don't attempt to remove the old color by sanding. If you feel you really need to sand, get a pole sander and use 320 grit.

Its far more important to use quality paint and quality tools. Quality paints cover better. Quality tools apply the paint more evenly. Get your paint from a paint store - not a big box or discount store.

If the color change is really drastic, say from very dark to very light or its been many many years since it was last painted, then use a primer first. Kilz and zinsser 123 or BIN are good primers.


03:26PM | 07/09/01
Member Since: 06/03/01
324 lifetime posts
If it's a gloss, semi gloss or satin finish already on the wall, use a liquid deglosser just before painting. This will insure good adhesion of the new paint to the old. Of course, if there are imperfections, use a medium or fine sandpaper- depending on how mush needs to be removed.


07:08PM | 07/13/01
Member Since: 11/14/00
333 lifetime posts
You only need to scuff-sand it if the surface is glossy or if you want to sand out imperfections in the wall (bumps and such). Otherwise, you should just paint on top of it. If it is dirty, old, or near the kitchen (greasey smoke), then just wash it with a TSP solution.
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