Clean Concrete Floor Before Painting

Some good cleaners include castile soap liquid dish detergent stone cleaners and mild floor cleaners.

Clean concrete floor before painting.

Remove dirt and grease with trisodium phosphate 6 30 per quart concentrate or choose a more earth friendly cleaner like krud kutter s pre paint cleaner 10 for 32 ounces. Prepare to mop the concrete with a trisodium phosphate solution tsp. Mop the floor using dish detergent and water. Combine an ounce of trisodium phosphate tsp in a gallon of hot water.

Before you power wash or paint seal your garage floor you ll want to attack any oil. If you are working on an outdoor piece of concrete flooring clean it of any grease. Thin the paint to be used for the first coat according. Cleaning and painting garage floors remove oil and grease spots.

Laitance is a weak milky accumulation of fine particles of cement dust lime and sand fines on the surface of fresh concrete usually caused by an excess of water bleeding to the surface. To make your concrete floors resistant to future stains apply a concrete sealant. Mix a solution apply to floor with a wet mop and then rinse with a mop dipped in clean water. The best adhesion requires a clean floor free of laitance and contaminants.

Wet the concrete and use a. Things needed tape plastic bag flat shovel or scraper stiff bristled broom 5 gallon bucket degreaser or all purpose cleaner stiff bristled brush cotton rags hose electric floor scrubber with brush attachment or coarse scrubbing pad wet dry vacuum sprinkler can muriatic acid. Use a paint roller to apply it to clean primed concrete. Clean the floor of all oil or grease stains using degreaser.

Prime and paint priming before you paint concrete floors helps ensure that your new look will stick. Acid etching with vinegar is easy and less labor intensive than using a machine to pretreat the concrete floor before sealing or painting. What is etching concrete. Allow the floor to dry completely.

Cleaning concrete is a vital first step because the porous surface tends to trap dirt grease and oil. The acid can t penetrate oily patches and will leave an uneven subpar flooring.