Clean Concrete Floor Before Painting

To make your concrete floors resistant to future stains apply a concrete sealant.

Clean concrete floor before painting.

Combine an ounce of trisodium phosphate tsp in a gallon of hot water. Acid etching with vinegar is easy and less labor intensive than using a machine to pretreat the concrete floor before sealing or painting. Mop the floor using dish detergent and water. Yank off any vines moss or other plant life covering the concrete.

Before you power wash or paint seal your garage floor you ll want to attack any oil. Mix a solution apply to floor with a wet mop and then rinse with a mop dipped in clean water. Mop the tsp solution onto the entire concrete floor using a sponge mop. Thin the paint to be used for the first coat according.

The acid can t penetrate oily patches and will leave an uneven subpar flooring. The best adhesion requires a clean floor free of laitance and contaminants. Wet the concrete and use a. Prepare to mop the concrete with a trisodium phosphate solution tsp.

If you are working on an outdoor piece of concrete flooring clean it of any grease. You want the surface to be as clean and bare as possible for the best coating of paint later on. 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. Use a paint roller to apply it to clean primed concrete.

Prime and paint priming before you paint concrete floors helps ensure that your new look will stick. Allow the floor to dry completely. Some good cleaners include castile soap liquid dish detergent stone cleaners and mild floor cleaners. Cleaning concrete is a vital first step because the porous surface tends to trap dirt grease and oil.

What is etching concrete. 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.