Using your masonry brush dip into the paint and stroke in any direction on the wall covering the wall completely with paint including all crevices in the block.
How to waterproof a concrete block wall.
How to waterproof your cinder block foundation.
Thoroughly clean the surface of your concrete before waterproofing.
To waterproof strengthen and preserve the overall appearance of your basement cinder block walls seal the blocks permanently against moisture and efflorescence with radonseal plus penetrating concrete sealer.
Radonseal is the strongest formulated penetrating concrete sealer available and is recommended for use on below grade and slab on grade.
A paint roller or brush made specifically for masonry is best.
This paint will go on much thicker than standard wall paint.
Water that enters through the pores can result to foundation seepage in the long run.
Most membranes like a clean surface to adhere to.
You will often see efflorescence white minerals or mold growth on damp concrete.
Diy waterproofing solutions if the interior side of the concrete blocks continuously dampens or wet drain the water accumulated inside the hollow cores by drilling weeping holes in the bottom blocks 3 8 masonry drill and allow them dry out for four or more days dryer the better.
Paint wall paint the cinder block wall with a thick coat of masonry waterproofing paint pushing paint into cracks and crevices of block.
With a stiff brush some tsp trisodium phosphate and some water wash away any loose material oil or dirt still clinging to the concrete.
They are generally absorbent and can easily absorb moisture that may cause mold problems.
The importance of waterproofing for concrete block.
Let dry before proceeding.