Prep Concrete Block Wall For Paint

Patch gouged or otherwise damaged areas with concrete filler. You will need a paint that is. Excess residue may interfere with adhesion of the coating.

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Paint should be about 1 8 inch thick to ensure waterproofing.

Prep concrete block wall for paint.

Thoroughly rinse the concrete surface with clean water using a hose with a high pressure nozzle or a pressure washer. How to prep walls for drylok. Use a commercial style pressure washer and at least 2500 psi. It s made to work on a range of masonry walls concrete block stucco or brick.

The texture will determine the amount of primer and paint needed. The surface is ready for priming when it feels like medium to light grit sandpaper and no residue or loose concrete remains. Apply paint with a sprayer roller or brush in even strokes. Select paint appropriate for your outdoor project.

Scrub the entire wall briskly with a dry stiff bristled scrub brush or a stiff wire brush. Clean the concrete surface with tsp. Paint your concrete walls with masonry paint. For exterior projects use a power washer to rid the wall of all dirt and dust.

During the preparation pay attention to any loose mortar and large cracks. Typically you can cover about 200 square feet per gallon of block fill primer on a smooth face and about half that amount on split face. 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. A suitable spray pattern is the 15 degree tip held 12 inches from the surface.

Apply two healthy coats with a 1 2 in. Any remaining loose paint will need to be removed manually. The first step when preparing concrete block walls is pressure washing. Smooth face concrete requires considerably less primer.

When you set out to paint concrete the process. Examine the walls. Repair any cracks or blemishes in your wall with concrete patch. Using a solution of trisodium phosphate tsp and warm water clean the.

Nap roller and you can clean up with soap and water. Waterproof doesn t mean this is a solution to serious water problems in your basement. Choose paint for your project. According to reliable builder masonry paint is specifically designed for good adhesion durability and breathability.

Make sure to prime all mortar as well. All it takes is time and some very careful preparation. Clean the concrete wall.

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