For hard to reach or tight places you can use a brush but your brush strokes may be visible on smooth cinder blocks.
Painting new concrete block wall.
Any remaining loose paint will need to be removed manually.
Allow to dry for 24 hours.
Paint the entire wall with a thin coat of a concrete sealer or concrete primer.
Paint your wall with concrete paint.
The paint may be sprayed on rolled on or painted on with a brush.
Adding a smooth coat of seal krete damplock masonry and waterproofing paint can raise the visual appeal of the uninspired space.
Like the first coat you ll want this to be as even as possible.
Paint should be applied in at least 3 thin layers.
Project summary use patching compound to fill any holes scratches or gouges in the concrete surface.
Paint with a sheen or gloss will be easier to maintain for example.
Work slowly taking a little bit of paint on the roller at a time and applying in long smooth strokes.
The paint should not be streaky or show brush strokes.
Use a commercial style pressure washer and at least 2500 psi.
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.
If there is no condensation the concrete is dry enough for painting.
During the preparation pay attention to any loose mortar and large cracks.
Clean the concrete thoroughly with trisodium phosphate tsp and warm water then let dry.
It can take your concrete walls from gray to grand with a quick drying coat.
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.
High alkaline levels also can stop paint from sticking to the concrete.
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.
The first step when preparing concrete block walls is pressure washing.
Apply an even coat with a wide paintbrush.
A plain gray cinder block wall can be a wide expanse of bland.
It can take anywhere from 30 to 90 days for alkaline.
Paint the interior walls of concrete block basements to protect against moisture.
The type of paint you select for interior concrete walls will depend upon the use of the room as well as its décor.
Masonry paint 20 per gallon can be tinted and is much thicker than exterior paint.
Make sure to apply 2 coats to achieve the highest durability.