Prep Concrete Wall For Painting

Step 1 clean the wall.

Prep concrete wall for painting.

If you properly paint a concrete block wall it will last for years with little upkeep. Painting a concrete wall can change a gray canvas into a colorful statement. Clean the concrete surface with soap and warm water removing any old paint. Clean the concrete surface with tsp.

Remove dense areas of oil or grease with tri sodium phosphate tsp to ensure that the paint doesn t discolor later. You will need a paint that is. First sweep away any surface leaves. All it takes is time and some very careful preparation.

Prepare the wall by picking away any loose edges of drywall facing paper. Clean the concrete wall. Prime the leftover raw paper with any type of priming paint to seal the raw paper. For exterior projects use a power washer to rid the wall of all dirt and dust.

Select paint appropriate for your outdoor project. 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. The surface is ready for priming when it feels like medium to light grit sandpaper and no residue or loose concrete remains. 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.

Thoroughly rinse the concrete surface with clean water using a hose with a high pressure nozzle or a pressure washer. But concrete is different from regular wall so specials tools and steps must be. Patch gouged or otherwise damaged areas with concrete filler. There are two basic types of finish on concrete block smooth and split face.

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. When you set out to paint concrete the process. Here are 5 basic steps to help you do the job successfully. Apply concrete patch to fix any.

Scrub the entire wall briskly with a dry stiff bristled scrub brush or a stiff wire brush. Before you paint and after you seal your concrete you need to prime your wall. Use a concrete primer which will help you get a smooth even surface that the paint can stick to. How to prep walls for drylok.

Kilz is a great product to use for this step because it seals well and dries fast. Examine the walls. Regardless of the finish and whether the concrete has already been painted the cleaning procedure is very similar. Excess residue may interfere with adhesion of the coating.

Preparing the concrete 1.