HOW TO PAINT A CONCRETE FLOOR
You can transform a concrete floor with a some hard work and a coat of paint
and it will provide a beautiful and unique finish that will last for many years. Painting your concrete floor is a
good way to upgrade
the appearance of a garage or basement at a very reasonable cost. It is
also a project that the average homeowner can complete with little training and just a few tools.
Although painting concrete is more difficult to paint than drywall, it is still a
relatively simple project. The tools and materials that you will need to complete the job are a mask, a pair of
gloves, eye protection, concrete paint, concrete primer, a paint tray, a paint brush, etching acid, tri sodium
phosphate (TSP), hydraulic cement, bucket , mop and a scrub brush. All of these items are readily available at your
local paint or hardware store.
To begin, thoroughly clean the surface of the floor, making sure to remove any grease
or oil from the floor. The is a very important step in the preparation process. You can use kitty litter to absorb
larger oil or grease stains.To clean the floor, mix the TSP cleaning solution according to the manufacturer's
directions. Mop the floor well using the TSP solution. After mopping the floor, rinse thoroughly and allow it to
completely dry.
Use hydraulic cement to fix any holes or cracks in the concrete and allow the cement
to set up before proceeding to the next step. If you cannot find hydraulic cement, you can also use caulk which is
specially formulated for concrete.
Mix the etching acid with water according to the manufacturer's instructions. Be sure
to mix the etching acid thoroughly before you begin to use it. Make sure to wear eye protection, gloves and a mask
when using the etching acid and follow the manufacturer's directions. Failure to take proper safety precautions
could result in serious injuries when using etching acid.
Place a small amount of etching acid on the floor and use your mop to spread the acid
to a small area. Continue to apply the etching acid until you have etched the whole floor. Once the etching acid
had dried, use your shop vac to clean up all of the dirt and etched concrete from the floor.
Once you have completely etched and cleaned the floor it is now time to apply
the primer. Stir the primer thoroughly to make certain it is mixed well. Pour some primer into the paint tray. With
your paint brush, cut in around the entire perimeter of the room and around any other fixed objects in the room.
Once you have cut the room in, use the roller and paint tray and apply a coat of primer on the floor in four foot
sections. Once the primer has completely dried you can began applying the concrete paint. Use the same steps that
you used when applying the primer to apply the concrete floor paint. Drying time will vary depending on what type
of floor paint that you used. Be sure to apply at least two coats of a good quality concrete paint when painting
concrete floors even if it appears that the additional coat is not necessary.
After painting concrete floors, a polyurethane coating should be added for protection
and maximum durability. Polyurethane coatings usually have very strong fumes, so be certain to wear a mask and keep
the area ventilated.
To keep the floor looking good for a long time, always apply a single maintenance
coat of urethane every two years.
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