Clean the concrete wall.
How to clean concrete walls for painting.
Repair any cracks or blemishes in your wall with concrete patch.
Next you can use a stiff or scrub brush with water that you already filled with soap to scrub the walls.
How to clean interior concrete walls step 1.
Select paint appropriate for your outdoor project.
While there is no best way to clean walls before painting most walls can be washed using a sponge and warm water.
Fill a bucket.
For exterior projects use a power washer to rid the wall of all dirt and dust.
If there is old paint already on the concrete use a wire brush to strip it all off.
Examine the walls.
A special masonry cleaner is designed to avoid this.
Dust off the walls with a dry rag to remove loose dirt and dust.
Protect the floor around the walls with plastic sheeting.
This will catch any drips from the cleaning solution.
For surfaces that have exposure to oil or grime like kitchen walls wash with a solution of water and grease cutting detergent and follow up with clean water to remove any residual cleaning agent.
Slip on a face mask and safety eyewear to protect your respiratory system and eyes from any harsh dusty residue released into the air by the.
Next use a chemical concrete cleaner to clean your wall and remove dirt and dust.
You can t simply use soap and water to clean concrete as the concrete will simply soak up these items.
You will need a paint that is.
Scrub the entire wall briskly with a dry stiff bristled scrub brush or a stiff wire brush.
How to prep walls for drylok.
A soft brush vacuum cleaner hose attachment.