Coverage of one gallon of coating by dry-film thickness (the 1,604 mil identity)
One gallon covers 1,604 sq ft at 1 mil but only 160 at 10 mils. Coverage = 1,604 × %solids ÷ mils — a durable floor is built thick, so it covers less.
What this diagram shows
A bar comparison of how far one gallon of 100%-solids coating spreads by dry-film thickness: about 1,604 square feet at 1 mil, 535 at 3 mils, 160 at 10 mils, and 100 at 16 mils. Each row pairs a film-thickness block with a coverage bar, showing the inverse relationship. Coverage equals 1,604 times percent solids by volume divided by target mils, so a thicker, more durable film covers proportionally less area. A product claiming one gallon covers a whole garage implies under 2 mils, which is a floor paint, not a build coating.
Epoxy Garage Floor Calculator
Free epoxy garage floor calculator: coating gallons or kits, flake, primer & anti-slip by garage size. Mil-thickness math + a moisture-test gate.
