Paint the entire wall with a thin coat of a concrete sealer or concrete primer.
Painting concrete block walls exterior.
Repair any cracks or blemishes in your wall with concrete patch.
Primer dries in two hours.
Choose paint for your project.
Step 3 prime the block wall.
Select paint appropriate for your outdoor project.
Step 5 painting concrete.
Step 4 caulk and seal.
For exterior projects use a power washer to rid the wall of all dirt and dust.
Step number two is pressure washing.
Step 1 clean the wall.
Any gas pressure washer will work.
Painting concrete block walls always starts with the removal of dust and dirt efflorescence and all loose or peeling paint.
For exterior foundations and walls use exterior grade block filler such as behr s concrete and masonry bonding primer which also is good for interior concrete 17 98 per gallon.
Step 2 repair the mortar.
First step in preparing block wall for spray painting is to move any gravel away.
You will need a paint that is.
Step by step process of spray painting a concrete block wall.
Work slowly taking a little bit of paint on the roller at a time and applying in long smooth strokes.
Count on split face block needing twice as muck primer and paint when compared to smooth block.
Apply an even coat with a wide paintbrush.
Paint a concrete block wall in 5 steps.
Preparing the concrete block for painting.
Like the first coat you ll want this to be as even as possible.
Regardless of the finish and whether the.
Allow it to dry for four hours or for the time indicated on the sealer.
If you re thinking about painting a concrete block wall you should realize that moisture could be a problem and of course moisture will allow paint to separate eventually from whatever you have.
Wait at least eight hours but no more than 30 days to paint.
Exterior block surfaces can be either but interior block surfaces are always smooth.
For hard to reach or tight places you can use a brush but your brush strokes may be visible on smooth cinder blocks.
Moving gravel away from the wall.