You will often see efflorescence white minerals or mold growth on damp concrete.
How to waterproof a concrete block wall.
How to waterproof your cinder block foundation.
Radonseal is the strongest formulated penetrating concrete sealer available and is recommended for use on below grade and slab on grade.
Water that enters through the pores can result to foundation seepage in the long run.
The importance of waterproofing for concrete block.
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.
This paint will go on much thicker than standard wall paint.
Allow to dry overnight or for a minimum of 12 hours between coats.
Concrete blocks that are not protected and treated can suffer from severe damage over a period of time.
A paint roller or brush made specifically for masonry is best.
Most membranes like a clean surface to adhere to.
Thoroughly clean the surface of your concrete before waterproofing.
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.
Paint wall paint the cinder block wall with a thick coat of masonry waterproofing paint pushing paint into cracks and crevices of block.
Let dry before proceeding.