Oklahoma City concrete staining
Most back patios in the metro were poured plain grey with the house. Stain soaks into that concrete rather than coating it, so it won’t peel, and a UV-stable sealer on top keeps the colour from washing out under Oklahoma sun.
Acid stain is a solution of metallic salts in a mild acid. It reacts with the free lime in the top of the slab, so the colour forms inside the concrete rather than sitting on it. The result is mottled and uneven on purpose, a little like leather or weathered stone, and the palette is limited to earth tones: browns, tans, terracotta and muted greens. No two patios come out the same, because the reaction depends on how that slab was mixed, finished and cured.
Water-based stain works differently. It soaks into the pores and carries pigment with it, with no chemical reaction. That gives a much wider colour range, including greys, blacks and blues, and a more predictable, even tone. Many patios get a mix of the two: an acid-stain base for depth, with a water-based colour used to tone down a patch that reacted too strongly.
Stain only takes where water can soak in. A quick test is to sprinkle water on the patio. If it darkens the concrete right away, stain will penetrate. If it beads up, something is sealing the surface, usually an old sealer, a curing compound left by the original finisher, or years of grill grease near the back door. Those have to come off by stripping, degreasing or light grinding first.
After cleaning, the slab is rinsed and left to dry. Acid stain also leaves a powdery residue that is neutralized, scrubbed and rinsed until the water runs clear. Skipping that step is a common reason a sealer later peels. New concrete is usually left about four weeks before any acid stain goes on, so it has cured enough to react evenly.
Most patios have saw-cut control joints that let the slab crack along a straight line instead of at random. Stain runs into those cuts and tends to pool, which can leave a dark line. Careful applicators work the stain out of the joint with a brush, or tape the joint and colour it separately as a design line. Patios on Oklahoma’s expansive red clay move with wet and dry seasons, so hairline cracks are normal. Stain will colour a crack along with the slab, but it will not close or hide it.
The stain is only as durable as the sealer over it. Ultraviolet light breaks down many sealers, and once the film goes chalky the colour underneath looks washed out. For a south- or west-facing patio, a UV-stable acrylic is the usual choice, and a solvent-based version gives a deeper, wet look than a water-based one. That sun exposure is a real factor in Yukon, where Canadian County averages 15 days a year above 100°F and sunshine about 68 percent of the time.
A sealer can also make a patio slick when wet, so many applicators add a fine grit to the last coat. For more on choosing and maintaining the top coat, see concrete sealing. If the patio runs into a pool surround, the deck usually needs different colour and grip choices, covered under pool deck staining.
What sets the schedule? The size of the patio, how much cleaning and old-sealer removal it needs, the stain type, and the weather, since stain and sealer each need dry, mild days.
These often come up on the same property and can be quoted from the same visit:
Re-seal faded stain, strip failed or whitened sealer, and colour-correct patchy older stain jobs.
How it’s done →Lighter, cooler-looking colours and a slip-resistant sealer for wet bare feet.
How it’s done →Even out blotchy, patched or oil-marked driveways and seal them against new stains.
How it’s done →Free estimate
Tell us the surface, the rough size and the age of the concrete. We’ll call to set up a look at the slab.
We’ll call to set up a look at your concrete. To talk sooner, call (405) 451-1462
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