How to Remove Epoxy Coating From a Garage Floor

Dampen the garage floor using a water hose.
Dampen the garage floor using a water hose. (Image: running water hose image by Katrina Miller from

Epoxy paint is a popular coating for garage floors because it is incredibly durable under intense duress. Unfortunately, this same quality makes it nearly impossible to remove using friction alone. If you want to remove an epoxy coating from your garage floor, you will have to apply one or more acid washes to the surface. However, before you get started, you need to know the proper application and safety measures to employ.

Things You'll Need

  • Acid-resistant gloves
  • Rubber boots
  • Splash-guard goggles
  • Respirator with acid-grade filter
  • Vinyl-coated overalls
  • Water hose
  • Towels
  • 5 gallon plastic bucket
  • 2 gallon bucket (plastic, metal or wooden)
  • Long-handle scrub brush
  • 2 large boxes baking soda
  • Pressure washer

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Open the garage door to provide ventilation.

Wear acid-resistant goggles, overalls, gloves, boots and a respirator with acid-grade filters.

Dampen the garage floor only slightly using a water hose. Dry any pooling water using towels.

Add one gallon of water to the 5-gallon bucket. Slowly mix in 12 ounces of muriatic acid using a long-handle scrub brush. Do not add the acid to the 5-gallon bucket before you add the water as this may result in the acid splashing from the container.

Apply the acid solution to the epoxy coating using the long-handle scrub brush. Do not pour the acid directly onto the surface. Allow the acid to sit for ten minutes.

Neutralize the acid by generously sprinkling baking soda onto the surface. Allow the soda to sit for five minutes, and then rinse the surface using a water hose.

Rinse away any remaining epoxy by focusing high water pressure on it using the pressure washer.

Repeat steps four, five, six and seven until all of the epoxy has been removed.

Add a gallon of water to the 5-gallon bucket of acid. Stir in baking soda until the contents stop fizzing. Dispose of the neutralized acid residue in a toilet or storm drain.


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