Wash the walls with an acidic solution check on amazon to neutralize the salt completely and allow to dry for a few hours.
How to patch a concret wall in washroom.
Press each layer into the crack and let dry completely in between coats.
The injection process fills the crack from top to bottom from inside to outside.
For small patching jobs use a pre mixed concrete patch.
Repeat until the crack is filled and level with the rest of the wall.
Fill the crack completely and tamp the patch.
Turn the trowel to a 45 degree angle and use the edge to scrape away excess patching material.
Injecting a typical wall crack with an epoxy or urethane resin is done under pressure pushing the material from the inside all the way to the outside.
Once you have a good sticky surface for the concrete simply add water to premixed concrete and patch the crack.
The crack must be prepared so that the sealant will adhere to the crack surfaces.
Step 1 clean and prepare the cracked area.
The methods discussed in this article can be used to repair minor non structural cracks.
This is good for pushing the patching into the crack.
Carefully smooth the surface of the patch with the flat face of the trowel.
You can also use a pointed trowel if you don t have a putty knife.
First off brush off any loose material from the basement walls.
Add a generous application of the prepared cement patch to the crumbled area with a metal trowel until the patch is built up evenly with the undamaged wall around it.
Apply multiple coats of concrete patching with a putty knife.
Mist the wall with water and then apply a coat of thoroseal with a latex additive check on amazon.