Backyard Patio Gets a Sand Coating Epoxy and Poly Double Broadcast Finish

Here's a backyard patio we recently tackled - plain, weathered concrete that needed a serious upgrade. Not just cosmetically, but structurally. The surface had seen better days, and the homeowner wanted something that could actually stand up to daily outdoor use without looking beat up after a season or two.

The system we used here is a sand coating epoxy with a poly double broadcast. What that means in practice - the epoxy base bonds directly to the prepared concrete, and then sand is broadcast into the wet coating twice. That double broadcast is what gives the surface that consistent, gritty texture you can see across the whole patio. It's not slippery, it doesn't look painted on, and it holds up far better than a basic seal coat alone.

Prep is what makes or breaks a job like this. We ground the entire surface down first using a walk-behind concrete grinder, which opens up the concrete's pores and gives the epoxy something solid to grip. Skipping that step - or doing it halfway - is exactly why some coatings peel or bubble within a year. We don't cut corners there.

The finished surface has a uniform slate gray tone that looks clean and intentional. The expansion joints were left exposed and intact, which is the right call - they're there for a reason, and covering them up creates problems down the road. The step near the back door got the same treatment, keeping everything consistent across the whole space.

What you end up with is a patio that looks sharp, feels solid underfoot, and is built to handle foot traffic, furniture, weather, and everything else that comes with regular outdoor use. If your outdoor concrete is looking rough and you've been putting off doing something about it, this kind of system is worth a serious look.