Prep Concrete Wall For Painting

Clean the concrete wall.

Prep concrete wall for painting.

Scrub the entire wall briskly with a dry stiff bristled scrub brush or a stiff wire brush. Watch our step by step video showing how to prepare an external wall for painting with expert advice and top tips to help you complete the job with confiden. Patch gouged or otherwise damaged areas with concrete filler. Prime the leftover raw paper with any type of priming paint to seal the raw paper.

Regardless of the finish and whether the concrete has already been painted the cleaning procedure is very similar. You will need a paint that is. Step 1 clean the wall. Using a solution of trisodium phosphate tsp and warm water clean the.

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. Clean the concrete surface with tsp. Select paint appropriate for your outdoor project. Excess residue may interfere with adhesion of the coating.

First sweep away any surface leaves. Painting a concrete wall can change a gray canvas into a colorful statement. There are two basic types of finish on concrete block smooth and split face. Apply concrete patch to fix any.

For exterior projects use a power washer to rid the wall of all dirt and dust. If you properly paint a concrete block wall it will last for years with little upkeep. When you set out to paint concrete the process. Clean the concrete surface with soap and warm water removing any old paint.

Thoroughly rinse the concrete surface with clean water using a hose with a high pressure nozzle or a pressure washer. Repair any cracks or blemishes in your wall with concrete patch. Use a concrete primer which will help you get a smooth even surface that the paint can stick to. All it takes is time and some very careful preparation.

Kilz is a great product to use for this step because it seals well and dries fast. The surface is ready for priming when it feels like medium to light grit sandpaper and no residue or loose concrete remains. Remove dense areas of oil or grease with tri sodium phosphate tsp to ensure that the paint doesn t discolor later. Prepare the wall by picking away any loose edges of drywall facing paper.

You ll probably need to wait about 48 hours after applying primer before you can paint but don t wait more than 30 days to paint. Examine the walls. Preparing the concrete 1. But concrete is different from regular wall so specials tools and steps must be.

How to prep walls for drylok.