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