Open the windows in the basement for air circulation.
How to clean concrete basement walls before painting.
How to prep walls for drylok.
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.
Lay plastic sheets on the floor next to the wall.
Stir the solution until the tsp granules fully dissolve.
Choose a clear silane or siloxane based water repellent sealer view example on amazon and apply the product with a.
Scrape any areas with loose or flaking paint and lightly sand using fine 120 grit sandpaper.
Concrete primer called block primer fills pores and evens out the surface.
Next you can use a stiff or scrub brush with water that you already filled with soap to scrub the walls.
The next step that you can do is to wring the rag and then try to wipe down your walls.
Scrub the entire wall briskly with a dry stiff bristled scrub brush or a stiff wire brush.
Mix 2 gallons of hot clean water with 1 2 cup of trisodium phosphate in a mop bucket.
Scrub areas of the concrete containing stuck on grime with a stiff nylon brush.
The pump will discharge the water to the surface of.
For exterior foundations and walls use exterior grade block filler such as behr s concrete and masonry bonding primer which also is good for interior concrete 17 98 per gallon.
Existing paint needs to be scraped and sanded.
Allow the concrete surface to dry.
How to clean cinder block basement walls hunker.
Prepare another mop bucket full of warm water.
Scrub the surface with a long handled brush.
If not properly wiped clean of dust and debris a new coat of paint runs the risk of peeling cracking and bubbling.
Scrub the wall with the water using a long handled nylon bristle.
In order for the paint to adhere properly to your basement walls whether they are concrete or drywall they ll need to be cleaned off first.
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.
Fill a 5 gallon plastic bucket halfway with lukewarm water.