A big Mukilteo garage with rust streaks on the slab, tested three times and coated in 1/4 inch Tidal Wave flake polyurea in September 2026.
Big garages show everything. This Mukilteo garage is a deep, wide space with white walls, exposed ductwork, several doors into the house and a window at the back. The slab was solid, but it had rust streaks from something metal that sat on it for years, along with scuffs and grey staining across 664 square feet.
In September 2026 our crew finished a garage floor coating in Mukilteo with Certified Penntek polyurea in Tidal Wave flake. The light blue-grey floor now matches how clean the rest of the room looks.
The free consultation was in July 2026. We ran a scratch test with a hardness pick and took moisture readings in three spots: 4.2%, 5.6% and 6.0%. The highest one sat right by the rust streaks near the door.
Moisture changes with the season, so the crew tests again on installation day. In late September the slab read 6.2%, with the slab at 60.4°F, air at 62°F, 80% humidity and a dew point of 50°F. The concrete was rated in great condition. Every one of those numbers goes on the Penntek warranty job card, which is registered with the manufacturer.
A garage this size was spread across two days.
Tidal Wave Evolution mixes white, grey and soft blue chips. Against white walls and white doors it reads bright and fresh, which fits a town on the water. The 1/4 inch flake gives a fine, even pattern that looks clean from the driveway and hides dust up close.
A lot of people search for an epoxy garage floor. What we install is Certified Penntek polyurea, and the difference is easy to see over time. Typical epoxy often shows problems in years 3–5. Penntek floors are built for up to 5x that lifespan.
Mukilteo sits on Possession Sound, home of the ferry to Whidbey Island. Marine air keeps humidity high, like the 80% reading on install day. That is why moisture testing is part of every quote. Our post on why moisture testing matters in our climate goes deeper.
We serve Mukilteo from our Woodinville base. See our garage floor coatings near Mukilteo in Edmonds, or look at an Edmonds garage finished in Smoke for a darker option.
Yes, which is why the crew records air temperature, humidity and dew point on install day. Penntek polyurea is made for Northwest conditions, and those readings help the crew time each coat.
Many garages are done in one day. Bigger floors, like this 664 square foot Mukilteo garage, may be split across two days for grinding and repairs, and we tell you the schedule up front.
It is a fine to medium chip that gives an even, speckled pattern. It hides dust and tire marks well and suits most garages.
Planning a big garage floor? Book a free in-home quote or call 425-226-6085. Nicole and Sheldon own Cascade and will give you a straight answer on timing.
Here's just a few of our previous projects.
