Garage floor coatings are sold with a photograph of the finished result and almost no information about the process that produces it. A weekend kit promises a showroom floor, and eighteen months later the coating is lifting in sheets under the tires of the family car.
That outcome is rarely the product’s fault. It is decided by what happened to the concrete before the first drop of coating went on, and by whether anyone checked the slab for moisture.
Who we write for
Homeowners with a one-, two- or three-car garage who want a floor that survives winter, hot tires and spilled fluids, plus the DIYers and small remodelers who get asked how it is done.
Everything here lives in one category, Garage Floors: choosing a coating, preparing the surface, deciding between coating and tiles, testing for moisture, and organizing the walls once the floor is finished.
How we work
- We explain why before how. Understanding why concrete needs a surface profile for a coating to grip tells you what to do when your slab is unusual. A list of steps does not.
- We give ranges and name the variables. Cure times, coverage rates and coating life depend on temperature, humidity, slab condition and product. Anyone quoting a single number without asking about those has not done many floors.
- We say plainly when a coating is the wrong answer. A slab with a moisture problem or heavy contamination may be better served by tiles or mats, and we say so.
- We name the failure mode. Every option here fails in a particular way, usually at a particular time. Each article says what and when.
- We update rather than repost. Products and formulations change. When they do, the original article is revised and the change noted.
Where we stop
Product safety and ventilation. Coatings, solvents and the dust produced by grinding carry real hazards. We tell you that they exist and send you to the manufacturer’s safety data sheet and instructions, which are the authoritative source. We do not give exposure advice.
Structural and electrical work. Cracks that suggest movement, a heaving or settling slab, and anything involving garage wiring or lighting circuits belong to a licensed professional.
Warranties and pricing. We do not interpret product warranties and we do not quote prices. Costs vary enormously by region, slab condition and product, so we name what drives them instead.
Who writes here
Wes Calloway — Editor. Wes spent twelve years installing and troubleshooting garage floor coatings across Minnesota and Wisconsin, where road salt, hot tires and freeze-thaw cycles find every weakness in a slab. He has torn out more peeling kit floors than he can count, and nearly every one failed for the same reason, which is how this site’s editorial approach was formed. He writes GarageFloor Lab for homeowners who want to do it once.
How this site is funded
GarageFloor Lab is free to read and is supported by display advertising, plus affiliate links on some pages. If you use an affiliate link and buy something, we may earn a commission at no additional cost to you. Advertisers do not see our articles before publication and have no influence over them; ads are placed automatically by third-party networks. Affiliate commissions do not decide our recommendations either — a good deal of our advice is to grind the slab properly and test it for moisture first, which sells nothing. The full disclosure is on our Disclaimer page.
Corrections
Product formulations change and we make our own mistakes. If something here is wrong, send it through our contact form with a source. We will verify it, correct the article, and record what changed and when.
Get in touch
Questions, disagreements and topic suggestions are welcome through our Contact page. We cannot assess your slab remotely, but we can usually tell you what to check and which two questions to put to an installer.