Paint the interior walls of concrete block basements to protect against moisture.
Painting new concrete block wall.
The first step when preparing concrete block walls is pressure washing.
Paint should be applied in at least 3 thin layers.
Clean the concrete thoroughly with trisodium phosphate tsp and warm water then let dry.
It can take anywhere from 30 to 90 days for alkaline.
Like the first coat you ll want this to be as even as possible.
The paint may be sprayed on rolled on or painted on with a brush.
A plain gray cinder block wall can be a wide expanse of bland.
Make sure to apply 2 coats to achieve the highest durability.
Paint the entire wall with a thin coat of a concrete sealer or concrete primer.
Allow it to dry for four hours or for the time indicated on the sealer.
Painting your concrete basement walls not only helps protect your basement against mold water bacteria and mildew but also adds to the look of your basement especially if you use it as a work or rec room.
For hard to reach or tight places you can use a brush but your brush strokes may be visible on smooth cinder blocks.
High alkaline levels also can stop paint from sticking to the concrete.
A suitable spray pattern is the 15 degree tip held 12 inches from the surface.
Use a commercial style pressure washer and at least 2500 psi.
Adding a smooth coat of seal krete damplock masonry and waterproofing paint can raise the visual appeal of the uninspired space.
Allow to dry for 24 hours.
Paint with a sheen or gloss will be easier to maintain for example.
If there is no condensation the concrete is dry enough for painting.
Paint your wall with concrete paint.
Work slowly taking a little bit of paint on the roller at a time and applying in long smooth strokes.
During the preparation pay attention to any loose mortar and large cracks.
Project summary use patching compound to fill any holes scratches or gouges in the concrete surface.
Exterior house paint can crack and peel on concrete.
Apply an even coat with a wide paintbrush.
Apply the paint to the concrete block with an airless sprayer and then immediately back roll it working in sections along the length of your wall.
It can take your concrete walls from gray to grand with a quick drying coat.
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.
Masonry paint 20 per gallon can be tinted and is much thicker than exterior paint.