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• Types of sandpaper
• Priming new drywall

Priming New Drywall

Always prime bare drywall before painting it. Most drywall primers are water-based, polyvinyl acetate (PVA) formulations. They are relatively inexpensive and will not lift the paper of the drywall. There purpose is to seal the surface of the drywall and joint compound. This helps ensure that the finish coat will have a uniform appearance.

Before priming drywall, remember to clean the surface of all dust resulting from sanding the joints. A broom is handy for this purpose. Failure to clean the dust from the wall adequately will cause the paint to lift the primer.

When priming new drywall with PVA don't expect it to cover like paint; because its suppose to act more like a sealer then a traditional primer. For the very best possible results, figure on ONE coat of primer and TWO coats of finish color.

A good primer will promote a uniform finish and cover between 250 to 400 sq. ft. (23-37 m²) per gallon depending on the surface texture, porosity and application method.

Light colors in a flat or eggshell finish will help hide wall imperfections. The darker colors and higher sheen levels (such as semi-gloss and gloss) will emphasize surface imperfections.

Types of Sand Paper

Drywall Sandpaper
Drywall sandpaper cuts faster then drywall sanding screens; but is more likely to clog. Consider using a drywall sanding screen. It last six to eight times longer then sandpaper.

Drywall Sanding Screens
Drywall sanding screens are made with an open design to resist clogging and extend screen life. They are made for long-lasting performance and are waterproof. They can be rinsed for reuse.

Drywall Sanding Sponges
Drywall sanding sponges have both a fine and medium sanding grade area on the same sponge. The sponge may be rinsed and reused and is ideal for sanding drywall and plaster for spot repair.

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