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Epoxy and polyurethane sealers can last five to 10 years, while acrylic sealers last two to three years or more depending on the use, wear of the surface, and type of sealer you choose. Areas that see heavy traffic or extreme ice and snow may require more frequent sealing. Test your concrete every two years to gauge how it responds to absorbing water or if it fully repels it for longer than 20 seconds.

Garage floor sealers last anywhere from one to 10 years on average, depending on the type of sealer you use and the traffic it’s exposed to. Acrylic sealers have the shortest longevity, whereas most other options can last anywhere from five to 10 years. If you use an acrylic sealant to protect against stains, reapply every one to two years. Reapply other types of concrete sealers every five years for the best results and maximum protection.

Mix the resurfacer into a sticky mixture. The consistency should look like mashed potatoes. Use a squeegee to push the resurfacer across the pitted area and smoothen the surface with a cement trowel flush. Make sure you protect any expansion joints with a weather strip. Alternatively, cut out any resurfacer that touched the joint once the mixture begins to harden.

Yes, you can seal old or existing concrete, but proper preparation is crucial. The concrete surface must be clean, dry, and free of any incompatible old sealant. To check if an old sealer is present, drip a few drops of water onto the surface; if the water is absorbed in under five minutes, it's ready to be resealed. If you plan to use the same type of sealer that was previously applied, you may not need to remove the old layer. However, if you are using a different type of sealer, the old one must be completely removed. Before applying the new sealer, thoroughly clean the concrete and repair or fill any cracks to ensure a smooth, well-prepared surface.