A cracked Seattle patio on Lake Washington got a custom Pebble Beach flake polyurea coating in 2025, then a matching 264 sq ft section in 2026.
Few patios get a view like this one. It runs the full length of a glass-walled Seattle home, right above the Lake Washington shoreline, with a lawn sloping down to the water and a boat tied up below. The concrete did not match the setting. It was faded, blotchy and crossed with cracks, and the grid of old control joints had gone dark with dirt.
This homeowner chose a lakefront patio coating in Seattle with Certified Penntek polyurea in a custom version of Pebble Beach flake, mixed without the white chips. The main patio went down in June 2025. A year later, in August 2026, we came back to coat another 264 square feet in the same blend.
The first phase covered the long patio along the window wall. In June 2025 the crew ground the slab, marked and repaired the cracks, then coated it the next day. The repaired crack lines show in the before photos as pale blue lines across the bare concrete.
The second phase, in summer 2026, tackled a further section of patio that was in rough shape. The concrete on that part was rated bad, with cracks running in several directions. On install day the slab was 65°F, the air 76°F with 53% humidity, and the moisture reading was 5.0%. We record those numbers on every job.
Matching a second phase to a first one a year later is easier with a custom blend logged on the job record. The new section reads as part of the same patio.
Standard Pebble Beach Evolution is a warm beige and tan blend with some white chips. Taking the white out made it softer and a little warmer, closer to sand. Next to the dark eaves, white window frames and green lawn, it looks natural instead of bright.
Custom blends like this are one way to fit a floor to a specific house. See what else is possible in our post on choosing a coating color and finish.
A waterfront patio gets every kind of weather. Full sun bouncing off the lake. Wind-driven rain. Cold winter nights. Typical epoxy yellows in UV and is too rigid for outdoor slab movement. Penntek's FadeLock™ topcoat passed a 16-hour QUV accelerated UV test, so the color holds. The flexible basecoat moves with the concrete through freeze-thaw.
Want proof? Watch the Penntek Stretch Test. The bond is over 1,300 PSI. Before the coating comes up, the concrete will come up.
Seattle's Lake Washington shoreline has a lot of homes like this one, with patios and decks facing the water. Moisture, moss and algae are part of life that close to the lake. A non-porous topcoat makes the difference, since grime and pollen rinse off with a hose.
See our patio and garage floor coatings in Seattle, or look at a cracked, mossy Seattle patio we rebuilt in Flint.
Yes. We record the color and flake details on every job, including custom blends. That lets us coat an added area later in the same look.
Often. This homeowner had the white chips left out of Pebble Beach. Ask at your free consultation and we will show you what is possible.
The polyaspartic topcoat uses FadeLock™ UV stability, and the flake is UV stable. It won't yellow or amber the way typical epoxy does in direct sun.
Have a patio that deserves its view? Book a free in-home quote or call 425-226-6085.
Here's just a few of our previous projects.
