Kayak Overhead, Flint Flake Underfoot in a Kirkland Garage

A busy Kirkland garage with a kayak overhead, stained concrete and a broken-edged access cover got a Flint Enviroflake polyurea floor in one day.

A yellow kayak hangs from the ceiling of this Kirkland garage, right above where the car parks. Bikes lean against the wall, black carriage-style doors open onto the driveway, and timber beams run across the top. It's a garage that gets used for real life. The concrete showed it: tire tracks, dark drip stains, leaves blown in under the doors, a few cracks, and a round access cover set in the slab with crumbling concrete around its rim.

At the end of August 2026 our crew installed a garage floor coating in Kirkland with Certified Penntek polyurea in Flint Enviroflake. Done in one day, with the kayak still hanging overhead.

Readings and problem spots from the July visit

The free consultation was in mid-July 2026, with the car still parked inside. Moisture read 3.7% and 3.6% in the open floor, and we tested near the doors and the access cover as well. The slab had a broom-textured section near the entry, hairline cracks, and oil and rust staining in the parking area.

The round cover needed the most thought. Its edge had broken down over the years, and any coating there has to be cut and sealed cleanly so the cover can still be reached.

What happened on install day

  • Car and loose gear out, kayak left in place overhead.
  • Industrial diamond grind across the full slab, with extra attention at the doors, the textured section and the rim of the access cover.
  • Vacuum and crack repair with Penntek Mender crack repair.
  • Pure polyurea basecoat, over 99% solids, chemically bonded to the concrete.
  • Flint flake broadcast to full coverage, then scraped and collected.
  • Polyaspartic topcoat with FadeLock™ UV stability.

Why Flint suits a working garage

Flint Enviroflake is a deeper blend of browns, greys and black with lighter chips mixed in. Under the timber beams and next to the black doors, it looks warm and grounded. It's also one of the most forgiving colors for a garage where a car parks every night. Road grime, tire marks and drips blend right in until you get around to rinsing them off.

Built for the car, the drips and the weather

Warm tires are tough on typical epoxy. The heat softens the coating and the tire pulls it up, leaving bare patches in the parking spots. The Penntek polyaspartic topcoat resists hot tire pickup, and the polyurea basecoat bonds to the concrete at over 1,300 PSI. Our post on preventing hot tire pickup explains why it happens.

The topcoat is non-porous, so oil and road salt sit on the surface. Upkeep is a broom and a hose, and our guide on maintaining a polyurea floor covers the rest. Every Penntek floor carries a limited lifetime warranty backed by the manufacturer.

Kirkland garages that hold more than cars

With Lake Washington right there, plenty of Kirkland garages double as storage for kayaks, paddleboards and bikes. If you paddle out of one of the waterfront parks the City of Kirkland maintains, you know how much wet gear comes home with you. A floor that sheds water and rinses clean earns its keep.

See more about our Kirkland polyurea garage floors, or compare this darker blend with a new-build Kirkland garage in Stoney Creek.

Questions about coating a lived-in garage

Can you coat around a utility cover or cleanout in the floor?

Yes. The crew grinds and coats up to the edge of the cover and cuts it in cleanly, so the cover still opens and the coating seals against it. Damaged concrete around the rim gets prepped first.

Do I have to take down things hanging from the ceiling?

Usually not. Items stored overhead, like this kayak, can stay as long as they're secure and clear of the floor. Everything on the floor itself has to come out.

Will a darker flake color show dirt less?

Generally, yes. Darker mixed blends like Flint hide tire tracks, road grime and drips better than very light colors. The non-porous topcoat keeps any of it from staining.

Your garage holding more gear than car? Book a free in-home quote or call 425-226-6085, and we'll work out what needs to move and what can stay.