Prep Concrete Wall For Painting

Apply concrete patch to fix any.

Prep concrete wall for painting.

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. 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. 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.

Excess residue may interfere with adhesion of the coating. For exterior projects use a power washer to rid the wall of all dirt and dust. Repair any cracks or blemishes in your wall with concrete patch. Preparing the concrete 1.

But concrete is different from regular wall so specials tools and steps must be. First sweep away any surface leaves. Prepare the wall by picking away any loose edges of drywall facing paper. Thoroughly rinse the concrete surface with clean water using a hose with a high pressure nozzle or a pressure washer.

The surface is ready for priming when it feels like medium to light grit sandpaper and no residue or loose concrete remains. Using a solution of trisodium phosphate tsp and warm water clean the. Prime the leftover raw paper with any type of priming paint to seal the raw paper. When you set out to paint concrete the process.

Before you paint and after you seal your concrete you need to prime your wall. Clean the concrete surface with tsp. Here are 5 basic steps to help you do the job successfully. Step 1 clean the wall.

Regardless of the finish and whether the concrete has already been painted the cleaning procedure is very similar. Select paint appropriate for your outdoor project. Examine the walls. Use a concrete primer which will help you get a smooth even surface that the paint can stick to.

If you properly paint a concrete block wall it will last for years with little upkeep. All it takes is time and some very careful preparation. Painting a concrete wall can change a gray canvas into a colorful statement. Remove dense areas of oil or grease with tri sodium phosphate tsp to ensure that the paint doesn t discolor later.

Patch gouged or otherwise damaged areas with concrete filler. You will need a paint that is. Choose paint for your project. Clean the concrete surface with soap and warm water removing any old paint.

Scrub the entire wall briskly with a dry stiff bristled scrub brush or a stiff wire brush.