Fill a bucket.
How to clean concrete walls for painting.
Protect the floor around the walls with plastic sheeting.
How to clean interior concrete walls step 1.
A soft brush vacuum cleaner hose attachment.
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.
While there is no best way to clean walls before painting most walls can be washed using a sponge and warm water.
How to prep walls for drylok.
To make the best result in cleaning the concrete wall that is not already painted you also can add another bucket that you should fill with warm water.
Examine the walls.
Repair any cracks or blemishes in your wall with concrete patch.
Scrub the entire wall briskly with a dry stiff bristled scrub brush or a stiff wire brush.
This will catch any drips from the cleaning solution.
A special masonry cleaner is designed to avoid this.
Next use a chemical concrete cleaner to clean your wall and remove dirt and dust.
Choose paint for your project.
Select paint appropriate for your outdoor project.
You can t simply use soap and water to clean concrete as the concrete will simply soak up these items.
For exterior projects use a power washer to rid the wall of all dirt and dust.
Next you can use a stiff or scrub brush with water that you already filled with soap to scrub the walls.
Dust off the walls with a dry rag to remove loose dirt and dust.
You will need a paint that is.
Clean the concrete wall.