How to Use DryLok in a Wet Basement

DryLok is a useful coating which can be painted onto wet basement walls to protect them from damage. This coating fills all of the tiny holes in various porous materials which will prevent water from being able to seep inside. It is available in powdered form, or ready mixed which can simply be painted straight onto the wall.

DryLok is not just suitable for wet basements, it's also commonly used in birdbaths and fish ponds. There are many different colors of DryLok available and it's also possible to tint it if desired.

 Step 1 - The Cause of the Problem

First you will need to identify the cause of the problem. This can be done with a very simple test. The test will help you to determine whether the problem you are experiencing is due to condensation or whether the problem is caused by seepage.

To perform this test you need to tape a square of foil to the inside of the wall using masking tape. Make sure that this stays untouched for a couple of days. After waiting a few days take the foil down and look at the foil, if the foil is wet against the wall then this is because of seepage, if the other side is wet then this means the problem is condensation.

Sometimes you might experience condensation and leaks at the same time. DryLok is only suitable for treating problems caused by leaking and seeping walls. If the problem is due to condensation then you should use a dehumidifier.

Step 2 - Cleaning the Wall

You now need to use a stiff wire brush to clean the wall, make sure that any loose debris and mortar are removed. It's important to remove all of the dirt and lose debris on the wall because this can cause the DryLok to stop sticking well to the wall. Make sure you prepare the surface if you are serious about protecting the masonry.

Step 3 - Dealing with Holes and Cracks

If there are any holes then you should use filler or putty to fill these holes. Cut a V shape into any of the cracks and then fill with the putty, this will make sure that the repair is strong and doesn't move.

Step 4 - Preparing DryLok

Now you need to prepare DryLok by giving it a good stir, then you can paint the first coat onto the wall using a stiff bristled brush. This will make it possible to push the DryLok into all of the tiny holes in the wall. If you have trouble finding a stiff bristled brush then you can trim a regular paintbrush until they become much stiffer.

Step 5 - Second Coat

Once the first coat is dry, use a roller to apply a second coat of DryLok to the wall. Make sure that the windows are open while the paint sealant is drying because this can create nasty fumes.