If your foil test showed that water is soaking through your basement walls and leaving them wet seal the interior of the walls with a high quality waterproof paint such as drylok white extreme.
Sealing old concrete basement walls.
Apply the sealer to the basement walls using a brush roller or garden type sprayer.
A basement sealer is vital to keeping the contents of your home and its foundation from suffering the effects of leaks.
It can also develop small pinhole openings that act as capillaries for water transmission.
These efforts combined with proper above ground drainage will do a lot to prevent moisture from coming through the walls.
Concrete is a porous material when fully cured.
The randonseal plus deep penetrating concrete sealer seals the concrete against basement moisture by penetrating up to 4 inches and internally sealing the concrete it blocks the micro pores and capillaries to prevent water vapor water spillage radon gas and efflorescence directly through the basement floor or walls.
Patching cracks snap tie holes and the cold joint where the floor meets the wall is the only way sealing the basement will work.
The cement will expand inside the fissures and create a water tight seal.
The most common type of basement wall sealer is a sodium silicate concrete sealer.
The best basement wall sealer to use to seal a basement wall will depend on the type of basement wall the condition of the basement wall and your reason for sealing.
Coat the basement walls with the sealer as recommended by the manufacturer.
Only apply the sealer to basement walls that are bare concrete or brick.
Then apply a coat of waterproof masonry cement to your basement walls.
If it s good enough for your front pathway then it s good for your garage or basement.
Many solutions for sealing basement walls and floors are do it yourself although a few may require the help of a professional.
Seal the entire concrete wall with a waterproof masonry.
Concrete by itself is worse.
The sealer hardens and strengthens the concrete to protect and reduce dusting and crazing.
Do not apply a sealer over painted surfaces because the sealer will not penetrate properly.
This will seal the pores of the concrete and stop moisture from seeping through.
I find that using hydraulic cement is only a temporary patch because the material is so brittle.
In order to stop a leak from causing further problems it is necessary to first identify the leak.