How to Paint a Garage Floor With Concrete Floor Paint

Painting a garage floor is an effective and affordable way to improve the appearance and durability of the space. Concrete paints designed for garage floors provide a protective coating that stands up to cars, chemicals, and foot traffic. With the right preparation and application, you can achieve a showroom-quality floor in your own garage.

Things You’ll Need

  • Concrete floor paint designed for garages
  • Paint roller and extension pole
  • Paint tray
  • Paintbrush
  • Cleaning solutions – TSP substitute and degreaser
  • Putty knife
  • Sandpaper
  • Broom
  • Masking tape and paper
  • Drop cloths

Preparing the Floor

Proper preparation is crucial for the paint to adhere properly. Here are the steps:

Clean the Floor Thoroughly

Sweep away any loose debris. Use a degreaser to remove any oil spots or stains. Scrub with a stiff brush and rinse thoroughly.

Once dry, etch the concrete with a TSP substitute. This opens pores in the concrete for better paint adhesion. Rinse thoroughly and allow to dry completely.

Repair Cracks and Holes

Use a putty knife to force concrete patch filler into any small cracks or holes. Smooth flush with the rest of the concrete. Allow filler to dry completely.

Remove Sealer or Paint

If the concrete was previously sealed or painted, you’ll need to strip and etch the floor to remove the old coating. A chemical paint stripper works best for this task.

Power wash the floor after stripping to remove all residual chemicals. Let the floor dry completely before moving on.

Smooth and Sand

Use 100-120 grit sandpaper to smooth any rough spots. Sweep and vacuum up all dust when finished.

Painting the Floor

Follow these steps for flawless paint application:

Mask Edges

Use masking tape and paper to cover baseboards, walls, and other areas you don’t want painted. This protects surfaces and provides neat edges.

Apply Primer

Primer improves paint adhesion and evens out surface irregularities. Roll on a layer of high-quality concrete primer and allow 2-4 hours to dry.

Apply Floor Paint

Pour paint into a tray and fully saturate the roller. Use long, steady strokes and maintain a wet edge to prevent lap marks. Work in 3-4 foot sections.

Apply two thin coats rather than one thick coat, allowing 4-6 hours of drying time between coats.

Use a brush for cutting in corners and edges.

Remove Tape and Cure

Carefully pull up all masking materials within 2 hours of painting. Allow the floor to cure fully for 3-5 days before walking, driving, or placing heavy items on the surface.

Tips for Success

  • Only paint when temps are between 50-90°F
  • Maintain airflow in the garage to aid drying
  • Work in long sleeves and eye protection
  • Use anti-fatigue mats for comfort during prep work
  • Start furthest from exit and work backwards as you paint
  • Use extension poles to reduce bending over
  • Limit foot traffic and parking on the floor for one week after painting

Frequently Asked Questions

How long does the paint last?

With proper prep and application, concrete floor paints can last 3-5 years in a residential garage before needing touch ups. Using a clear sealer on top extends the life further.

Can I paint over oil/grease stains?

No, oil-based stains can prevent paint from properly adhering. Use a degreaser and/or etching solutions to remove any oily areas before painting.

What kind of paint should I use?

Look for concrete floor paints designed for garages. These offer better durability than standard wall paints. Epoxy or polyaspartic coatings offer the hardest finish.

Should I etch the concrete before painting?

Yes, etching opens pores in the concrete for the paint to grip. This is essential for proper adhesion. Always etch prior to painting bare concrete.

Can I paint a garage floor myself?

Definitely! Concrete floor painting is a DIY-friendly project. With some time and care taken on prep work, you can achieve professional-looking results.


Upgrading your garage with a fresh coat of concrete floor paint is an easy weekend project. With proper cleaning, prep, application, and curing time, you can enjoy an attractive and protected floor that stands up to years of use. Pay close attention to preparation and coating guidelines for optimal durability.