TarmacoatRust-Oleum paint review

Why it happens. It is not a garage-floor coating, and Rust-Oleum's data sheet says so in plain text. The film does not take hot-tire pickup or the twisting scuff a car puts down when it parks and turns the wheel at a standstill. Enclosed slabs also trap solvent and oil.

The fix. There is no rescue for a coated garage slab — strip it and re-coat with a two-part epoxy or polyaspartic system. That is the correct specification for an enclosed vehicle bay.

Why it happens. Coverage runs 4 to 8 m²/L because asphalt porosity runs that wide. New tight-graded asphalt sits near the top of the range; old, open, weathered tarmac drinks the first coat and lands near the bottom.

The fix. On porous or rough asphalt, thin the first coat about 20 percent with water so it keys into the surface, then apply a full-strength second coat. Order material off the rough end of the range, not the optimistic end.

Why it happens. A single-pack acrylic wears. Entrance lanes and turning radii take the most abrasion on any lot, and a two-pack would hold longer there.

The fix. Budget a scheduled maintenance recoat of the worn zones rather than treating it as set-and-forget. The 1-hour recoat makes that cheap — a lane can be re-coated and back in service the same day.

Why it happens. Applied outside the window. Below 10°C (50°F), or with rain or frost arriving before it is rainproof at the 1-hour mark, the film never forms properly. Oily or contaminated substrate does the same thing.

The fix. Apply above 10°C with a clear forecast, and degrease contaminated areas first — a primer will not fix contamination. Keep it off any surface that holds standing water at all.

For exterior asphalt, tarmac, paving, or tired old concrete that has to take vehicles again the next day, yes. It is a single-pack waterborne acrylic at 40 g/L VOC, touch dry in 30 minutes, walkable and rainproof in 1 hour, and light traffic in 24, which nothing slower can match on a lot you cannot close for a week. It is not worth it for a garage slab, hot-tire pickup, or standing water, and Rust-Oleum's own data sheet rules the garage out.

No. Rust-Oleum explicitly says not to apply Tarmacoat on garage floors. The film does not hold up to hot-tire pickup, power-steering scuff, or trapped solvent and oil. For an attached garage slab, use a two-part epoxy or polyaspartic system. Tarmacoat is built for open exterior asphalt and paving, not enclosed vehicle bays.

Not on sound, clean asphalt or old concrete. It is self-priming and works as a one-pack primer and topcoat. On very porous or rough asphalt, thin the first coat about 20 percent with water so it keys into the surface, then apply a full-strength second coat. Oily or contaminated substrates need degreasing first, not a primer.

Light traffic such as a bicycle or a single car at about 24 hours. For regular or occasional heavy traffic, hold off 48 hours. It is touch dry in 30 minutes and rainproof and walkable in 1 hour, but cure to service is the number that matters before you open a lot or driveway to vehicles.

Not under the Tarmacoat name. It is a Rust-Oleum EU/UK product sold in 5-liter RAL-color cans through European distributors. US buyers either import it or pick a domestic equivalent. For a US driveway, Rust-Oleum EpoxyShield Blacktop Coating is the easiest counterpart on the shelf at most big-box stores.

Four to 8 m² per liter, which is roughly 160 to 325 sq ft per US-gallon equivalent, one coat. The spread is wide because asphalt porosity is wide. New tight-graded asphalt sits near the top; old weathered tarmac drinks the first coat. Plan material off the rough end of the range or you will run short on the back half of a lot.

Above 10°C, which is 50°F, with no rain or frost in the forecast. It is rainproof at the 1-hour mark, so you need at least that much clear weather after application. In the northern US that limits the season, so schedule the work rather than assuming a window will appear.

Depends entirely on the zone. Open bays and low-traffic paving hold well with strong UV resistance. Busy entrance lanes and turning radii wear faster than a two-pack would and need a scheduled maintenance recoat of those areas. The 1-hour recoat makes that cheap, but it is planned maintenance, not an option.

Yes, that is one of its intended jobs. It is sold in RAL traffic colors, and Traffic White and Traffic Yellow stay legible well into the second season. For pure high-volume striping to a DOT-type spec, a dedicated waterborne traffic paint applied at 12 to 15 mils wet is the tighter fit.