A stained three-car garage on Fox Island with cedar doors and wood shelving was coated in Tidal Wave flake polyurea over several days in March 2026.

Fox Island sits in south Puget Sound, reached by a single bridge, with salt air and wet winters most of the year. This Fox Island home has a big three-car garage with cedar garage doors, built-in wood shelving, a wood landing at the house door and a wall-mounted car charger. The concrete underneath was stained and dark, with oil spots, scuffs and years of tracked-in grime.
In March 2026 Cascade's crew installed a garage floor coating on Fox Island with Certified Penntek polyurea in Tidal Wave flake. The cool blue-grey blend lightens the whole room and sets off all that warm wood.
At the free consultation in February 2026 the crew ran a scratch test to check the hardness of the slab. The surface was sound but heavily marked, with dark patches near the parking spots and wear around the doors. A good-sized slab with a lot of edges, between the shelving bases, the water heater platform and the steps to the house.
Distance changes the planning more than the process. An island job means the crew arrives with everything needed for each day, and the schedule is built around the bridge drive.
This floor was built up over several days in late March 2026:
The crew coated right up to the shelving, around the water heater platform and to the line of each garage door. Our installation process page walks through each step in more detail.
Tidal Wave Evolution is a blend of soft blue, grey, white and charcoal chips. Next to the cedar doors and wood shelving it reads clean and bright, with a hint of water color that suits an island home. It also does a good job of hiding damp footprints and the grit that comes in on tires.
The Penntek basecoat bonds chemically with the concrete at over 1,300 PSI, helped by a silane adhesion promoter. Before the coating comes up, the concrete will come up. It is also flexible, so it moves with the slab through cold snaps and freeze-thaw instead of cracking.
The polyaspartic topcoat is non-porous and holds up to oil, road salt, gas and grease. It resists hot tire pickup, and FadeLock™ keeps the color from yellowing near the big doors. Penntek floors are built to last 30–40 years. Our post on how long a garage floor coating lasts in the Pacific Northwest has the details.
Island homes tend to have garages that do more than park cars. Boats, gear, tools and freezers all live there, and the doors are open a lot. A sealed floor that hoses clean makes sense when the weather is wet half the year. We are based in Woodinville and plan South Sound jobs ahead. See our Seattle area garage floor coatings for how we work, and watch the Penntek Stretch Test to see the basecoat flex.
Yes, this floor is on Fox Island. South Sound jobs are planned ahead around the drive, so call to check dates for your address.
Yes. The crew grinds and coats tight to the base of fixed shelving and platforms. The wood itself stays as it is.
Tidal Wave is a mixed blend, so dust and footprints blend into the chips. The non-porous topcoat makes cleanup a quick sweep or mop.
Want a floor like this one? Book a free in-home quote or call 425-226-6085. Nicole will check your address and set up the visit.
Here's just a few of our previous projects.