Cleaning Concrete Garage Floor Before Painting

Step 1using a rag wipe off all oil and grease spills from the concrete surface.

Cleaning concrete garage floor before painting.

The buffers can be rented and the rental companies often sell the scrub pads too. Cleaning garage floors by floor grinding or shot blasting will insure your concrete is profiled correctly. Dampen the cement floor thoroughly with a hose. For tough paint stains you may need a commercial paint stripper.

Do not skip this part. You can employ a floor buffer fitted with a special scrub pad made for cleaning concrete. Pour dry dishwasher detergent or a concrete cleaning agent on the stain. For stubborn stains use muriatic acid in combination with your pressure washer set to at least 1200 psi.

Moisture will prevent the primer and paint from adhering properly. If you try applying an epoxy floor paint to a smooth unprofiled concrete floor you can expect the epoxy to peel and lift due to hot tire pickup and inproper adhesion. New concrete must cure for 30 days before you can clean it or apply a topcoat. Tape a large piece of plastic over a portion of the old concrete garage floor attaching all edges of the plastic to the floor.

Homemade concrete cleaning solution. How to paint a garage floor clean and prep the floor. Remove all dirt or debris with a broom. For regular cleaning a solution of baking soda and water will loosen dirt and grease and help keep your garage floor clean.

Leave the plastic on the floor for 24 hours. Cleaning concrete garage floor with a floor buffer. An easy way to tell whether the floor is dry enough is to place a small. These powered buffers will scour the floor replacing the manual scrubbing with a brush.

Pour some of the degreaser or cleaning solution from the bucket onto the floor. Attach a brush or coarse scrubbing pad to an electric floor scrubber. Wait until your concrete floors are dry before you prime. Concrete is very porous and will easily collect dirt and grime so cleaning with a power washer or floor buffing machine is best.

This solution should stay on the stain for several hours before scraping or scrubbing the concrete.