Push the cement into the cracks and crevices making sure to pack and seal.
How to seal top of concrete block wall.
Radonseal is the strongest formulated penetrating concrete sealer available and is recommended for use on below grade and slab on grade concrete applications because it is permanent and is completely resistant against hydrostatic pressure.
Recoat the surface every two years.
There are two products needed to perform the sealing of the concrete blocks a liquid and a paste.
The liquid is the damp concrete primer dcp.
Your blocks must be bare and clean to work with.
You must use this within about 30 45 minutes.
Patch any holes in the basement cinder block wall with your hydraulic cement.
Using a roller roll on the sealer allowing 30 minutes of drying time between each coat.
Remove any paint how ever you know how or again use the service of a professional contractor it s up to you as long as it gets the job done.
Combining waterproofing sealers the combination of using radonseal plus followed by ion bond armor elastomeric concrete sealer provides the tightest possible seal for poured concrete and concrete blocks.
It is prepared by mixing a liquid concentrate with water.
Seal the entire concrete wall with a waterproof masonry product.
Let the cinder blocks wall dry completely you can t apply radonseal or any other sealing product until the blocks are dry.
The cement becomes hard quickly so be time efficient.
This sealer will penetrate the block pours sealing them off from any invading water.
Allow the cement to dry before proceeding usually 24 hours.
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.
A tan emulsion will immediately form.