This is especially true if you have a stained or etched concrete driveway or patio.
Types of Concrete Sealers
Before you begin, be aware that there are different types ofconcrete sealers.
The very best products will be available at professional concrete supply retailers.
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Gloss Levels
Like paints, concrete sealers are available in different gloss or shine levels.
you might choose from no-gloss, matte, satin, semi-gloss, gloss, and high-gloss options.
Manufacturers categorize glosses on a scale of 1 to 100, with 100 representing the highest level of gloss.
There’s no standard gloss level for a concrete driveway or patio.
Be aware that solvent-based sealers tend to darken the surface of the concrete more than water-based sealers.
Those marketed as “wet-look” sealers have a higher ratio of solids in the liquid.
Before sealing concrete, see to it the surface is clean and dry.
If necessary, use soap or degreaser to thoroughly clean the slab.
Any patching that is required should be completed before sealing.
Clean, dry surfaces are critical for the sealer to properly adhere to the concrete.
Before beginning, read label directions for any special precautions, including suggested optimal weather and temperatures for sealing.
Refer to the manufacturer’s label instructions for the recommended method.
Coverage
With either method, strive for complete coverage.
Most products are rated to cover 250 to 300 square feet per gallon.
It is best to apply two or even three thin coats, allowing each coat to dry between applications.
This will prevent puddling that can create uneven coverage.
Overlap the areas as you apply the sealer to ensure full coverage.
Drying time is about two hours, but this can vary depending on weather conditions.
Humid summer conditions may require a drying time of five or more hours.
The entire surface should be dry to the touch without any sticky feel before you apply the next coat.
A professional sealer will charge you based on the square footage of your driveway.
If you notice areas that have worn thin, a light reapplication after washing is a good idea.
Pressure Washing
Using apressure washeris fine to clean surface dirt from a sealed concrete driveway.
But it’s highly advisable to use the right tip, or the surface could become damaged.
Resealing
Opinions vary regarding how often a concrete driveway should be resealed.
The quality of resins in the sealer will greatly influence the lifespan of the seal coat.
According to concrete trade organizations such as Concrete data pipe, plan on resealing every one to three years.
