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Costs depend on floor size, finish type, and additional features like in-floor heating.

There are many benefits to painting a garage floor, especially if you use an epoxy floor coating . In general, paint makes your garage easier to clean. Since concrete is porous, it tends to absorb things like dirt, grime, mildew, oil, and grease. Paint—specifically epoxy-based paint—creates a barrier that helps you easily mop up the mess before it stains or is difficult to remove.

Concrete sealers will help your garage floors resist water, but they will not make the floor waterproof. You will need to purchase a specific waterproof floor paint for concrete and apply several coats over several days if you want your garage floor to be truly impermeable. While the process is similar to sealing the floors, the materials are different, and the need for multiple coats will extend the process and drying time.

You’ll usually need to prime a garage floor before painting—especially if the floor is unpainted. Garage floors are made from concrete, which is porous and produces dust. The dust can contaminate the paint and cause issues with adherence. 

Primer creates a barrier and gives you a clean surface to work on. It also minimizes absorption to help give you an even, pro-looking paint job. Make sure you choose a primer that’s specifically designed to cover concrete flooring.