Sealcoating in Corpus Christi, TX

Sealcoating is a liquid coating spread over asphalt to protect the binder that holds the stone together. Ultraviolet light and heat oxidize that binder over time; the surface fades from black to gray, small stones loosen, and hairline cracks open and let water in. In Corpus Christi, with long months of strong sun and a record high of 109 degrees, that aging happens quickly on unprotected pavement.

What a sealcoat does and does not do

A sealcoat slows oxidation, fills the tiny surface voids that let water soak in, resists oil and gas spills, and restores a uniform black color. It does not add strength, fix potholes, level low spots or bridge wide cracks. Those repairs come first. If the pavement is badly cracked or the base has failed, sealing it is money spent on appearance only, and we will tell you so.

Timing and weather

HomeGuide recommends waiting 3 to 6 months after new asphalt is laid before the first coat, and sealing in dry weather between 50 and 95 degrees. Most sealers need 12 to 72 hours before cars can drive on them. Along the coast, humidity slows drying and afternoon storms can wash out a fresh coat, so we watch the forecast closely and seal on clear days, often starting early to avoid the hottest surface temperatures.

How often to reseal

Published guidance ranges from every 2 to 10 years depending on the sealer and the climate; HomeAdvisor suggests every 2 to 5 years for parking lots. A good sign it is time: the surface has turned gray, water no longer beads, and fine aggregate is showing. Too much sealer, applied too often, can build up and crack on its own, so we do not recommend sealing every year.

Preparation is most of the job

We blow and sweep the surface, scrape off dirt and grass at the edges, prime oil spots so the sealer will stick, and fill cracks before coating. Then the sealer goes on in two coats, either by squeegee or spray, and the area is barricaded until it is ready for traffic.

Commercial lots

For businesses we section the lot so part of it stays open, and we can restripe the same week once the sealer has cured, since sealing covers the old lines. Sealing and striping in one visit also means one round of barricades and one notice to tenants or customers instead of two.