A cracked, stained Kenmore garage that doubles as a woodshop, coated in Tidal Wave flake with Certified Penntek polyurea in one October day.

This Kenmore garage is a woodworker's shop first and a parking spot second. A bandsaw, a planer and rolling tool carts fill one side. A tool wall and pegboard cover the back, and a set of wood steps leads into the house. The concrete underneath had taken years of that work: a long crack across the middle, oil and finish stains near the wall, and sawdust ground into every pore.
In October 2025 this Kenmore homeowner had Cascade install a garage floor coating with Certified Penntek polyurea in Tidal Wave flake. The shop moved out in the morning and the new floor was done by the end of the day.
The free consultation was in early October 2025, with the shop still set up. The crew put a moisture meter down in a few spots, including right next to the crack, where it read 4.1%. A scratch test checked hardness. Every slab gets these tests before a quote.
What the slab showed:
Installation was on October 23, 2025. The equipment rolled out and the crew went through the steps:
The coating wraps the stem wall corners and stops clean at the wood steps, so the whole shop has a finished edge.
Tidal Wave is a grey, white and black flake blend with a hint of blue-grey. For a shop, the busy pattern is a feature. Sawdust, small offcuts and the odd drip of finish blend in until the next sweep. The light tone also brightens the room, which helps when you are lining up a cut.
Shop floors take hits. Clamps fall, a chisel slips, a heavy machine gets rolled across the room. A few things make this floor a good match:
Our post on workshop, gym and multi-use garages has more ideas for spaces that do double duty. The floor is registered under Penntek's limited lifetime warranty.
Kenmore sits at the north end of Lake Washington, and garages here deal with damp falls and cold snaps. A slab that cracks across the middle has usually moved with the seasons, so the flexible Penntek basecoat earns its keep. If you live nearby, see our page on garage floor coatings in nearby Kirkland, browse the full portfolio, or check the City of Kenmore site for local info.
The flake and polyaspartic topcoat take normal shop traffic well, and the pattern hides light wear. For very heavy machines, rubber casters or a mat under fixed equipment is a good idea on any floor.
Out of the garage for the day. The floor has to be clear wall to wall for grinding and coating. The crew tells you when you can move tools back in.
The topcoat is non-porous, so most spills wipe up. Clean them while fresh, the same as on any finished floor.
Want a shop floor that keeps up with your projects? Book a free in-home quote or call 425-226-6085.
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