How to Apply Cool Pool Deck Coating?

Refinishing a worn concrete pool deck with COOL! comes down to one idea: feed the surface. The coating is designed to soak into porous concrete, so the prep work and the way you roll on the first coat determine whether the finish lasts or peels. Done right, the system takes about two days and returns a surface you can walk on within 24 hours of the final sealer coat.

What You Need Before You Start

COOL! is a two-part, tintable acrylic system that you activate yourself.

You’ll need standard paint gear: brushes, trays, and a roller. The manufacturer specifies a 3/4-inch nap roller for standard surfaces. For textured finishes like knockdown, exposed aggregate, or deeply stamped concrete, step up to a 1-inch nap roller so the coating reaches into the contours.

How to Prepare the Concrete Surface

Preparation is where most failed coatings start. The surface must be clean, dry, and completely free of any prior sealers or membranes before COOL! goes on.

• Clean the deck with Encore Brands “Triple Crown” Cleaner, then pressure wash thoroughly.
• Remove any existing clear sealers, epoxies, urethanes, or water-repelling membranes by chemical stripping, grinding, or sandblasting. This step is non-negotiable — COOL! will not adhere over these products.
• Repair cracks with a paintable concrete crack repair material and patch damaged areas with polymer-modified cement patching compound.
• For existing knockdown texture, patch with sanded grout to match the finish.
• Let all repairs cure for 24 hours before coating.

One common mistake: people try to use Triple Crown as a sealer stripper. It isn’t one. If you suspect a previous sealer, test for active water repellency and remove it properly before proceeding.

How to Apply COOL! Pool Deck Coating, Step by Step

Work in the morning or late evening, and skip the job entirely if the forecast calls for rain within 24 hours.

1. Roll on the first coat “fairly wet” to feed the concrete’s porosity and establish a solid foundation. A thin, dry coat is the fastest way to a failed finish.
2. Wait at least 1 hour, then apply the second coat of COOL!. You can also wait a few days if needed — the second coat doesn’t have to happen the same day.
3. After the second COOL! coat has cured at least 2 hours, apply a thin first coat of SealBack Clear Sealer. This adds the protective, walkable finish.
4. Allow the first SealBack coat to dry at least 1 hour, then apply the second thin coat. As with COOL!, this can happen in following days if your schedule requires.

Don’t skip the sealer step — it’s what protects the color and makes the deck easy to clean.

Before you buy materials, it’s worth comparing the best concrete pool deck coating systems for your climate and surface type, so you know COOL! is the right fit for your project.

Common Mistakes That Ruin a COOL! Application

Most failures trace back to four avoidable errors. Skipping the sealer-stripping step when old membranes exist is the most serious, since the new coating simply won’t bond. Applying the first coat too dry is the second-most common — the concrete needs that wet coat to grip. Rushing the timing between coats cuts the cure short, and skipping crack repairs means every flaw telegraphs through the new finish.

If your deck had a previous coating that won’t come off easily, the honest answer is that COOL! is likely the wrong system for that surface unless you’re willing to grind or sandblast it down to bare concrete.

Stick to the sequence — clean, repair, two wet coats, two sealer coats — and the finish should hold up for years of summer swims.