New drywall or previously painted drywall that requires repair should be treated not just with regular primer but with a primer sealer product.
New sheetrock walls primed painted need anything to hang wallpaper.
Priming promotes adhesion making it possible to hang on difficult to stick to surfaces like glossy painted walls.
For example to achieve a quality finish with a paint and primer in one you may need 3 4 coats of paint which typically costs 25 50 per gallon.
The last thing you d want is to hang your beautiful new wallpaper only to notice that bright green hue from the previous homeowner s wall color is showing right through.
Once dry sand any high spots to create a level wall.
Pva drywall primers actually seal the new sheetrock surface better than a paint and primer in one and cost less.
A primer or sealer or a primer sealer is essential when preparing new drywall for paint or wallpaper.
For walls without any issues go with a standard drywall primer and you ll be fine.
In any case make sure that you paint within two days of priming.
This protects the drywall from damage by the.
If the wall was painted prior to wallpaper installation follow the instruction for painted or textured walls.
Remove wallpaper and glue from the wall s.
After you re done hanging drywall and all the seams are taped and finished you need two coats of paint to give the wall its final appearance.
Some drywall manufacturers even recommend plain flat latex paint as one type of drywall primer.
Using flat latex paint is another inexpensive way to prime drywall before painting.
Let the wall dry thoroughly.
Priming also blocks color from showing through the new wallpaper.
Pigmented primers have a white hiding pigment which makes the entire wall uniformly white very important in today s world of wallpapers that are not 100 opaque to prevent the old wall color from showing through.
The issue of latex.
Remove any remaining dust oil or grease with tsp tri sodium phosphate or an ammonia based cleanser.
Patch any holes or cracks with spackling compound.
Once the drywall has gone up the joints taped and the screws mudded something is needed to create an even solid surface over those different textures for a smooth coat of paint and possibly to help blend in new drywall with an existing wall.
Before you apply those however you need to seal the.
Start by removing any molding switch plates outlet covers and other hardware attached to the area being tiled.
Even pros sometimes opt for cheap latex paint as a primer when the surface has been so well finished that the surface is perfectly smooth without flaws.
Likewise if you have plaster follow the instruction in that section.