If you or a previous owner painted the basement walls you ll have to remove the paint before applying sealer which only adheres well.
How to seal painted concrete wall.
To paint concrete start by cleaning it with soap and water and repairing any cracks or uneven surfaces.
You must choose the appropriate type of concrete paint determine if the wall is sealed from moisture and apply primer prior to painting the wall.
Don t apply sealer over painted walls or efflorescence.
Paint a generous coating of this material onto the wall working the product in all directions to completely seal any pinholes.
Designed to form an impermeable barrier to water on interior and exterior vertical or horizontal concrete block and cast in place concrete.
Painting a concrete wall can spruce up an area or make it blend in with the rest of the area s décor.
Masonry paint 20 per gallon can be tinted and is much thicker than exterior paint.
Masonry paint also called elastomeric paint or elastomeric wall coating is a good choice for concrete painting because it contains binders that contract and expand with the concrete.
If the painted concrete floor is in an area that experiences heavy.
Once you re done with that apply a layer of concrete paint primer with a roller and let it dry.
Sealing a painted concrete floor is an important step because it adds an extra layer of protection on top of the painted surface.
Seal the entire concrete wall with a waterproof masonry product.
If you re painting indoor concrete you ll also want to apply a concrete sealant so moisture doesn t mess up your paint job.
Sealer needs to be applied in dry conditions because it won t adhere to damp concrete.
Exterior house paint can crack and peel on concrete.
Before applying check the weather.
If your concrete is new you ll need to let it cure wait at least one month before applying sealer.