All it takes is time and some very careful preparation.
Painting a new concrete wall.
Because concrete is porous it absorbs a lot of paint.
Painting concrete block walls always starts with the removal of dust and dirt efflorescence and all loose or peeling paint.
Choose paint for your project.
Too much moisture in new concrete can cause paint to bubble.
Step 1 clean the surface as with most painting projects preparation is the biggest key to your success.
Both interior and exterior block surfaces require the same attention to details.
Determine whether cement or acrylic render was used on your concrete walls.
Using a solution of trisodium phosphate tsp and warm water clean the.
Patch gouged or otherwise damaged areas with concrete filler.
Use a power rotary sander with heavy gauge paper on walls that.
Clean the concrete wall.
You will need to use a masonry paintbrush or a texture roller to apply the paint.
With proper preparation painting surfaces like these can be simple and the end result will be worth the effort.
If the work history of the walls is.
For exterior projects use a power washer to rid the wall of all dirt and dust.
It usually takes at least 30 days for moisture to dissipate enough for paint to adhere.
Apply a coat of sealer to the concrete rendered wall if the render is made of acrylic.
Clean the concrete surface with tsp.
You will need a paint that is.
Repair any cracks or blemishes in your wall with concrete patch.
Because masonry paint is so thick using an airbrush tool or a paint sprayer is not advisable.
This paint is thicker and designed to be used on stone and concrete.
You can test for moisture by taping a piece of.
Allow this to dry for several.
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.
Paint sprayer or brush.
Unless you re an experienced painter you may want to purchase extra paint to account for more absorption than usual.
You can use a fresh coat of paint to bring new life to an old basement an exterior masonry wall brick or even a garage floor.
Painting interior concrete walls can add warmth to a basement at very little cost.