A Belfair garage near Hood Canal read 5.8% and 5.9% for moisture, so it got a layered barrier and then Lani Grey flake polyurea in April 2026.
Belfair sits near the tip of Hood Canal, where the air stays damp for much of the year and plenty of properties have big detached garages full of gear. This one was packed with lumber, propane tanks, a kayak and a small off-road vehicle. Under all that, the concrete was stained, dusty and holding more moisture than most.
In April 2026 Cascade's crew finished a garage floor coating in Belfair with Certified Penntek polyurea in Lani Grey flake. Because of what the meter showed, this was not a one-day job. The slab got extra layers underneath before the flake ever went down.
The free consultation was in February 2026. Two readings came in at 5.8% and 5.9%. There was also a rust-colored stain on the slab and a lot of wear from years as a storage and work space.
We don't treat moisture as a footnote. It is the most common reason coatings bubble or peel, and it matters even more in a damp, wooded area like this. Every slab gets tested before we quote it, and when the numbers call for it, we plan for Penntek's two-layer moisture barrier system. Our post on solving moisture problems in concrete floors explains how a barrier works.
The coating runs to the edge of the garage door opening and around the furnace and water heater platform at the back, so there is no bare concrete left at the edges.
Lani Grey is a mid to dark grey flake with lighter accents. In a garage that sees muddy boots, firewood and outdoor gear, a darker blend is forgiving. Dirt, tire marks and sawdust blend in. With white walls and wood doors it also looks warmer than a flat grey paint would. Browse the full range on our colors page.
Typical epoxy is rigid and prone to problems in years 3–5, especially over a slab that holds moisture. The Penntek basecoat bonds chemically with the concrete at over 1,300 PSI and stays flexible through freeze-thaw. Before the coating comes up, the concrete will come up.
The floor carries a limited lifetime warranty backed by Penntek, the manufacturer. Penntek has dealers in 200 markets, so a rural floor can be serviced for the long haul. You can see the bond tested in the Penntek Hammer Test.
Out here, garages are rarely just for parking. They hold boats, kayaks, tools, firewood and whatever else needs to stay out of the rain. A sealed floor makes all of it easier to live with. Spills wipe up, and the floor hoses clean. Belfair is a longer drive than our usual Eastside routes, so we plan these jobs carefully. You can learn more about how we work on our Seattle area garage floor coatings page and see every step on our installation process page.
The slab read 5.8% and 5.9% for moisture, so it got a barrier built up in layers before the color coats. Each layer needs its own visit, which stretched the job over several days.
Yes, this job is in Belfair. Call to check your address and we'll tell you how we can schedule it.
Usually, yes. Darker blends like Lani Grey hide dirt, tire marks and sawdust between cleanings. The topcoat is non-porous, so most messes sweep or mop right up.
Have a damp slab and a full garage? Book a free in-home quote or call 425-226-6085. We will test the slab and tell you exactly what it needs.
Here's just a few of our previous projects.
