The key to a successful cinder block paint job is applying proper sealant and primer. Whether the surface is in a basement or above ground, cinder block is as easy to paint as drywall once the surface has been sealed and primed to keep moisture out. Moisture will cause paint to chip and flake off, so if the cinder block is part of an unfinished basement, a masonry sealer will be the most important part of the process.
Things You'll Need
- Concrete or masonry sealer
- Interior latex paint or masonry paint
- Paint rollers and brushes
- Scraper (optional)
Remove existing paint, if necessary. Use a rubber or metal scraper to remove any flaking paint. Flaked or chipped paint can be a sign of moisture seeping through the cinder block, so be sure to seal the surface if this is a problem. The "This Old House" website recommends using a concrete sealer containing sodium silicate to prevent indoor moisture seepage.
Seal the cinder block surface. Some cinder block, especially in basements, will be treated with a waterproof sealer when the house is built. If in doubt, a fresh coat of sealer won't hurt. Sealer is generally a clear, thin liquid and is applied like paint. Allow to dry according to the manufacturer's instructions.
Prime the cinder block. Choose a primer that's approved for indoor concrete or masonry use. Primers are generally white, but they can usually be tinted the same color as your latex paint to add depth to your wall color. Allow the primer to cure completely before painting.
Paint the area, using a quality interior latex paint or specialty masonry paint. Once your cinder block has been sealed and primed, you can use any type of interior wall paint, so you don't necessarily have to purchase specialty paint. Apply two or more thin, even coats until the desired color is achieved.
- Photo Credit paint brush image by Vladislav Gajic from Fotolia.com
Painting Murals on a Cinder Block Wall
Cinder blocks are the foundations for outdoor rock walls. Builders often apply mortar and bricks to them to create a finished look....
How to Paint Cinder Blocks
Cinder blocks may be just the right material that you need, but painting them is no easy matter. Cinder block is porous,...
How to Paint Concrete Blocks
Prep your concrete block walls properly before painting them with colors or a design that suits your style.
How to Paint a Cinder Block Garage
You can transform the appearance of your plain cinder block garage by coating it with the appropriate type of paint. Before you...
How to Paint Interior Concrete Walls
Painting interior concrete walls can add warmth to a basement at very little cost. Because concrete is porous, it absorbs a lot...
How to Paint Concrete Block Basement Walls
Painting your concrete basement walls not only helps protect your basement against mold, water, bacteria and mildew but also adds to the...
Ideas for Finishing an Interior Concrete Block Wall
If you are finishing a basement, or if you live in a house that is built entirely of concrete blocks, you may...