Building & renovation
How much 2K floor paint for a garage or workshop?
Liters and cans of two-component floor paint for garages and industrial floors — from m², coats and coverage.
Quick answer
Two-component floor paints are ordered by mixed liters, not single-pack wall paint. On sealed concrete they typically cover 8–10 m²/L per coat; we default to 9 m²/L with two coats. Formula: liters = area × coats ÷ yield × (1 + waste). Worked example: 36 m² garage floor, 2 coats, 10% waste → 36×2÷9×1.1 ≈ 8.8 L mixed → 4× 2.5 L kits or two 5 L units.
Advanced settings
Paint needed
9.8 liters
- Cans to buy
- 4 × 2.5 L
Two-component floor paints (epoxy or polyurethane) typically cover 8–10 m²/L per coat on sealed concrete. Two coats are standard; catalyse only what you can apply within pot life.
How it works
Catalyse only what you can spread within pot life (often 30–45 minutes). Etch or grind bare concrete first — yield collapses on dusty, unsealed slabs. Compare 2k floor paint garage systems for chemical resistance vs polyurethane flexibility.
Before ordering the kits, spend a day on a free test. Tape a half-metre square of plastic sheet tightly to the slab and leave it twenty-four hours: if the underside is fogged or the concrete beneath has darkened, moisture is coming up through the floor — and epoxy laid on it will lift in sheets a few months later, taking the top of the concrete with it. Ground-bearing slabs poured without a vapour barrier do this routinely. If the test fogs, the answer is a moisture-tolerant primer system, not more coats of the same paint.
Frequently asked questions
How many liters for a 40 m² garage floor?+
At 9 m²/L, two coats: 40×2÷9 ≈ 8.9 L before waste. With 10% waste → ~9.8 L — round up to four 2.5 L kits. Single-car garages are often 25–40 m²; measure the painted zone only, not the whole footprint if you leave margins.
2K epoxy vs polyurethane floor paint?+
Epoxy is harder and more chemical-resistant — great for garages and workshops. PU is more UV-stable and slightly flexible — better where thermal movement or sunlight matters. Both use similar coverage; follow the manufacturer system (primer + topcoat) if required.
One coat or two on concrete?+
Almost always two coats for durability and even colour. A single thick coat traps solvent and can peel. Thin first coat, full cure per label, then second coat.
Do I need a primer under 2K floor paint?+
On bare or porous concrete, yes — epoxy or PU primers are often sold in the same range and use similar liters to one coat. This calculator sizes the finish coats; add primer separately if the substrate is absorbent.
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