Epoxy Floor Kit Good Full Kit Clear Coating with High Gloss Finish, Covers 500 sq. ft. at 9.7 mils Thickness Review (2026)
Updated September 14, 2026 · Research-based review
Our verdict
This clear epoxy kit from PerformanceDIY, formerly Epoxy-Coat, uses a 100 percent solids cycloaliphatic formula to lay down a single, roughly 10 mil coat over 500 square feet, enough for most two-car garages. It suits owners who want a clear seal over decent-looking concrete rather than a colored flake finish to hide flaws.

A full clear epoxy floor kit with high gloss finish that covers 500 sq. ft. at 9.7 mils thickness.
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What we liked
- + Covers 500 sq. ft., enough for most two-car garages
- + 9.7 mils thickness builds a durable protective layer
- + Clear coat can seal over bare or stained concrete
Trade-offs
- - Clear finish shows every flaw in the underlying concrete
- - Two-part epoxy has a limited working time once mixed
Who This Epoxy Kit Is Right For
This kit is built for garage, basement or shop floors where the underlying concrete already looks reasonably good, since a clear coat seals and glosses the surface rather than hiding it under color and flakes. PerformanceDIY, previously known as Epoxy-Coat, has made epoxy floor coatings since 1982 and manufactures this kit in the USA. The 500 square foot coverage lines up with a typical two-car garage floor, and the zero-VOC, odor-free formula makes it more practical to apply indoors without needing to air out a garage for days before it is usable again.
What the Kit Delivers on the Floor
The coating is a 100 percent solids cycloaliphatic epoxy that goes down as a single coat at roughly 9.7 to 10 mils dry film thickness, which is a thick, durable layer compared with thinner one-part epoxy paints sold at hardware stores. Because it is a two-part system, it needs to be mixed before application and used within its working time, so the job is best planned as a single, uninterrupted session rather than spread across several days. The finish is described as high gloss, which shows off the natural look of the concrete underneath rather than concealing it with color. That single-coat approach also means there is less room to fix uneven spots with a second pass, so working in manageable sections helps keep the thickness even across the full 500 square feet.
Living With a Clear Epoxy Floor
PerformanceDIY backs the coating with a stated 2-year warranty and an estimated residential lifespan of up to 20 years when applied correctly, figures that assume proper surface preparation before the epoxy goes down. Full instructions are included with the kit and are also available from the manufacturer for reference during the project. Because the finish is clear, any stains, cracks or discoloration already in the concrete will still be visible afterward, so the floor benefits from being cleaned and, where needed, patched before coating rather than treated as a way to disguise a rough slab. The manufacturer also warns against walking on the new coating before the recommended cure time, since even sweat from bare feet can leave a mark in a floor that has not fully cured.
Clear Coat Versus Colored Flake Finishes
Rust-Oleum's EPOXYSHIELD kits and the flake versions of this same Good Full Kit line, also covered in this guide, use color and decorative chips to hide surface imperfections and add slip resistance, which is a real advantage over bare clear coat on a floor with visible flaws. This clear version trades that camouflage for a natural concrete look and the full 9.7 mil thickness of pure epoxy rather than a coat built around flake coverage. Anyone whose slab already has stains, patch marks or color variation is generally better served by one of the flake or colored kits in this roundup instead of the clear finish.
Verdict and Who Should Choose a Flake Kit
This is a solid pick for a garage floor that already looks clean and even, where the goal is a durable, glossy, protective seal rather than a color change. The thick single-coat application and multi-decade manufacturer life estimate stand out against thinner hardware store epoxy paints. Choose a colored or flake version instead, several of which appear elsewhere in this guide, if the concrete has visible stains, patches or discoloration that a clear coat will not hide, or if added slip resistance from broadcast flakes matters more than a glossy, transparent finish.
Frequently asked questions
How much floor space does this kit cover?
The Good Full Kit covers approximately 500 square feet at about 9.7 mils of dry film thickness in a single coat.
Does this kit include color or flakes?
No, this version is a clear coating meant to show the concrete underneath with a high gloss finish; colored and flake versions of the same kit line are sold separately.
How long does the coating last?
The manufacturer states a 2-year warranty and an estimated residential lifespan of up to 20 years when the floor is prepared and coated correctly, following the included instructions.
Is the epoxy safe to apply indoors?
The formula is described as zero-VOC and odor-free, which makes indoor application more practical, though the manufacturer's full instructions should be followed for ventilation and safety during mixing and application.
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