You will need a paint that is.
Prep concrete wall for painting.
When you set out to paint concrete the process.
The surface is ready for priming when it feels like medium to light grit sandpaper and no residue or loose concrete remains.
Prepare the wall by picking away any loose edges of drywall facing paper.
Kilz is a great product to use for this step because it seals well and dries fast.
Examine the walls.
Clean the concrete surface with soap and warm water removing any old paint.
Select paint appropriate for your outdoor project.
Apply concrete patch to fix any.
Remove dense areas of oil or grease with tri sodium phosphate tsp to ensure that the paint doesn t discolor later.
Clean the concrete surface with tsp.
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.
Preparing the concrete 1.
All it takes is time and some very careful preparation.
How to prep walls for drylok.
For exterior projects use a power washer to rid the wall of all dirt and dust.
Here are 5 basic steps to help you do the job successfully.
Choose paint for your project.
Repair any cracks or blemishes in your wall with concrete patch.
Scrub the entire wall briskly with a dry stiff bristled scrub brush or a stiff wire brush.
Prime the leftover raw paper with any type of priming paint to seal the raw paper.
There are two basic types of finish on concrete block smooth and split face.
If you properly paint a concrete block wall it will last for years with little upkeep.
Use a concrete primer which will help you get a smooth even surface that the paint can stick to.
First sweep away any surface leaves.
Patch gouged or otherwise damaged areas with concrete filler.
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.
But concrete is different from regular wall so specials tools and steps must be.
Painting a concrete wall can change a gray canvas into a colorful statement.
Thoroughly rinse the concrete surface with clean water using a hose with a high pressure nozzle or a pressure washer.
Before you paint and after you seal your concrete you need to prime your wall.
Step 1 clean the wall.
Using a solution of trisodium phosphate tsp and warm water clean the.