Prep Concrete Wall For Painting

Select paint appropriate for your outdoor project.

Prep concrete wall for painting.

Regardless of the finish and whether the concrete has already been painted the cleaning procedure is very similar. Repair any cracks or blemishes in your wall with concrete patch. Examine the walls. Clean the concrete surface with tsp.

For exterior projects use a power washer to rid the wall of all dirt and dust. Remove dense areas of oil or grease with tri sodium phosphate tsp to ensure that the paint doesn t discolor later. Apply concrete patch to fix any. But concrete is different from regular wall so specials tools and steps must be.

Patch gouged or otherwise damaged areas with concrete filler. Clean the concrete surface with soap and warm water removing any old paint. Prime the leftover raw paper with any type of priming paint to seal the raw paper. Clean the concrete wall.

Thoroughly rinse the concrete surface with clean water using a hose with a high pressure nozzle or a pressure washer. Use a concrete primer which will help you get a smooth even surface that the paint can stick to. Kilz is a great product to use for this step because it seals well and dries fast. 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.

Prepare the wall by picking away any loose edges of drywall facing paper. Painting a concrete wall can change a gray canvas into a colorful statement. You will need a paint that is. All it takes is time and some very careful preparation.

Scrub the entire wall briskly with a dry stiff bristled scrub brush or a stiff wire brush. Here are 5 basic steps to help you do the job successfully. Choose paint for your project. 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.

Before you paint and after you seal your concrete you need to prime your wall. There are two basic types of finish on concrete block smooth and split face. First sweep away any surface leaves. 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. Step 1 clean the wall. If you properly paint a concrete block wall it will last for years with little upkeep. The surface is ready for priming when it feels like medium to light grit sandpaper and no residue or loose concrete remains.

Preparing the concrete 1.