New unpainted concrete block walls need to have all dirt and loose mortar removed prior to priming.
Seal and paint concrete block wall.
Primer dries in two hours.
For exterior foundations and walls use exterior grade block filler such as behr s concrete and masonry bonding primer which also is good for interior concrete 17 98 per gallon.
Lift off the peeling paint with a stiff putty knife or paint scraper.
A great newly concrete poured wall with 8 10 inches thick is considered impermeable.
Low voc mold and mildew proof white water based waterproofing paint is a modified acrylic co polymer concrete and masonry waterproofing paint and finish.
The best type of concrete paint for exterior walls is also elastomeric while 100 percent acrylic paint is a second best option.
Drylok extreme latex base masonry waterproof coating is drylok extreme latex base masonry waterproof coating is ideal for interior exterior above or below grade masonry walls basement walls foundations landscape walls cinder blocks concrete blocks bare concrete swimming pools stucco and brick.
Then scrub the area with a wire brush.
Standard concrete block is semi permeable 5 perms.
Features flexible encapsulated polymers for a beautiful smooth waterproof finish.
Wait at least eight hours but no more than 30 days to paint.
The best and easiest way to make sure your cinder blocks will not leak is to take preventive actions before you need it.
How to seal cinder blocks walls.
Painted walls will need all loose and peeling paint removed.
The type of paint you select for interior concrete walls will depend upon the use of the.
Step 5 painting concrete block.