Why sanding is important
Sanding promotes the durable adhesion of repair compounds, primer, primer/sealer and paint—especially on surfaces coated with eggshell (low-luster), semi-gloss and full-gloss finish paint. It also provides an aesthetic dividend by helping to make surfaces smooth and uniform. Careful sanding of flush-fills and repairs helps to make fills and repairs virtually undetectable after priming and painting.
A variety of sanding tools are available to help you sand ceiling, wall and trim surfaces. Each tool has unique characteristics that you can utilize for the sanding needs of your project. You will use several sanding tools as you prepare the interior of your home for paint, decorative paint, faux finish and mural art. Sanding tools include: pole sander, electric sander, sandpaper, sanding sponge.
Always wear eye protection and respiratory system protection when sanding. See Articles on Sanding safety, and "Dustless" sanding techniqes.
If your house was built before 1978, go to www.epa.gov/lead/pubs/renovation.htm before any surface preparation or sanding work begins.
More detailed coverage of this topic can be found in the book:
The Homeowner's Guide to Surface Preparation for Interior House Painting, on pages 88-94.
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