Epoxy garage floor in South Florida

How soon you can walk and park on it

The Sikafloor-261 CA epoxy data sheet (June 2026 edition) lists foot traffic after about 1 day¹ at 68 F, light traffic after about 2 days¹ and full cure after about 7 days¹. At 86 F it lists about 18 hours¹ for foot traffic and about 5 days¹ for full cure.

The sheet also sets the conditions for the work and the cure: 85% humidity at most; slab at least 5 F above dew point¹. It asks for readings at at least every 3 hours¹.

The sheet lists light traffic, not cars. It says the coat reaches its full properties only when it has fully cured. Ask the installer to put the wait for cars in hours, in your written scope.

What an epoxy garage floor is and when it fits

Epoxy is a resin that you mix with a hardener. It cures into a hard film on top of the slab. It is sold as a plain color, as a clear coat over a color, and as the base layer under flakes or a polyaspartic topcoat.

It is a coating, not a repair. It does not fix a slab that is wet, sinking or splitting. The slab has to be sound before the coat goes on.

It fits when you own the garage slab, the concrete tests dry and you can wait for a good weather day. It fits poorly when water keeps rising through the slab, when a crack keeps moving, or when an association must approve the change first. The readiness score shows which of these apply to you.

Prep before the coat

A coat grips only what is clean and rough. The data sheets we read call for removing oil and sealers, then grinding or shot-blasting to open the surface ². Cracks, chips and spalled spots get filled first, because a coat shows a crack through it.

Then the slab gets a moisture test. The epoxy sheet we read caps slab moisture at 4% on a Tramex meter ¹. A slab that fails needs another plan before epoxy goes on. Ground moisture can rise through a slab on the ground, and you cannot see the barrier under it ³.

The prep guide lists what to ask for in writing.

Humidity and dew point: the limits to check

An epoxy coat is sensitive to the air and to the slab, both while it goes down and while it cures. One smooth-finish epoxy sheet sets the limits below. They are the maker's numbers (vendor data), not independent tests ¹.

• Air humidity: no higher than 85% during the work and the cure ¹.
• Slab temperature: 50 F to 86 F ¹.
• Dew point: the slab must stay at least 5 F above it ¹.
• Slab moisture: 4% or less on a Tramex meter ¹.
• Recoat: the window runs from about 8 h at 68 F to 48 h, then the surface needs abrading ¹.

Dew point is the temperature at which water starts to form on a surface. When the slab sits close to it, moisture can form under a wet coat. South Florida summers are hot and humid, so the margin can shrink (our reading, not a measured failure rate).

The city pages set NOAA airport normals next to these limits, for Miami and West Palm Beach. Airport air is not your slab, so a reading in your own garage on the day decides. The guide on when to book covers early starts and dry-season windows.

How the job goes on site

These are the steps in a typical epoxy job. Your written scope sets the details.

• Check the slab. A good installer starts with photos, then takes a moisture reading and looks at cracks, old coating and drainage.
• Prep. Clean the slab, remove oil and sealers, grind or shot-blast, fill cracks and vacuum the dust.
• Check the day. Read the air humidity, the slab temperature and the gap to the dew point against the sheet. If a reading misses, the start moves.
• Mix and spread. Combine the resin and hardener, pour it out and roll it within the time the sheet allows.
• Finish. Add flakes or a clear topcoat if the scope calls for them. A topcoat has to go on inside the recoat window.
• Cure. Keep cars and wet shoes off until the scope says the floor is ready. The epoxy sheet says no vehicle load until the coat is fully cured ¹. Put that wait in your scope, in hours.
• Check the result. Ask for photos of the prep and of the finished floor.

Durability: what the sources support

A floor lasts as long as its bond lasts. The sources point to moisture from below, weak prep and a start outside the sheet limits as the causes of failure ^{3 1}. The guide on why coatings peel goes through each one.

Sun can matter. One editorial guide says epoxy can yellow and fade in direct sunlight ⁴. A closed garage door keeps most sun out, and an open door lets some in (our reasoning).

For hot tires, chemicals and impact we found no independent test data on epoxy, so we give no ratings. Makers market polyaspartic topcoats for hot-tire marking resistance, but that is also a claim without independent tests. See polyaspartic garage floors.

We found no sourced lifespan. Be wary of any claim that a floor will never peel. A warranty with its written exclusions tells you more.

What an epoxy floor costs: the method

Price is floor area times a rate per square foot, plus what your slab needs. National guides publish the rates. We hold no South Florida quote yet, so every number here is a national range and not a local price.

Step 1, measure. Length times width, in feet, gives the area. The sums below assume 400 sq ft, the low end of Thumbtack's two-car size ⁵.

Step 2, pick a rate range. This Old House lists professional epoxy at 3 USD per sq ft⁶ to 12 USD per sq ft⁶. Thumbtack's rows for a two-car garage run 3 USD per sq ft⁵ to 3.25 USD per sq ft⁵, a narrow range from a few examples.

Step 3, multiply the area by each rate.

• This Old House, low end: 400 sq ft x 3 USD per sq ft⁶ = $1,200 (our arithmetic).
• This Old House, high end: 400 sq ft x 12 USD per sq ft⁶ = $4,800 (our arithmetic).
• Thumbtack, both ends: 400 sq ft x 3 USD per sq ft⁵ and x 3.25 USD per sq ft⁵ = $1,200 to $1,300 (our arithmetic).

Step 4, add what your slab needs. A slab that tests wet may need a moisture-mitigation layer. This Old House lists that extra at 2 USD per sq ft⁷ to 10 USD per sq ft⁷. At 400 sq ft it adds $800 to $4,000 (our arithmetic).

Angi lists installed epoxy at 2-12 USD per sq ft⁸, and HomeAdvisor lists a professional garage job at 1650-3494 (typical 2526) USD⁹. Treat the top of any range as a thick system and not a typical price.

We found no sourced rate for grinding, crack repair or old-coating removal. Treat each as a line to ask about. Quotes differ because scopes differ, so compare them line by line. The cost guide shows more sources.

Care and cleaning

Ask for the care sheet for your product and keep it. Until you have it, these are general habits and not a maker's rules.

• Sweep or dust-mop to lift grit, because grit scratches a glossy coat.
• Wipe up oil, brake fluid and other spills soon after they land.
• Use only the cleaners your care sheet allows.
• Lift heavy items instead of dragging them.
• Keep heavy loads off the floor until the full cure is done.

The written scope, the warranty and licensing

As of October 18, 2026

A data sheet cannot promise your result. A warranty can say what is covered, so read its exclusions before you sign. Installer-side press material says warranties often exclude moisture failure, hot-tire transfer, impact and automotive fluids ¹⁰. It is not independent, but it makes a useful list of questions.

Florida does not license floor coating as a trade. The contractor statute lists flooring among scopes that need no state contractor license, section 489.117(4)(a) ¹¹. A license number cannot vouch for an installer, so lean on the written scope, the warranty terms and references.

Ask for these in writing:

• The prep method and how oil, sealers and old coatings come off.
• The moisture reading and the limit it is judged against.
• The product names and their data sheets.
• The weather cut-off for a start.
• The wait before cars go back in.
• The warranty term and its exclusions.

We are lining up one local installer. We will publish their workmanship term here once it is signed.

National price ranges for epoxy garage floor

Epoxy garage floor in South Florida: cities

• Epoxy garage floor in Miami
• Epoxy garage floor in West Palm Beach

Questions people ask