Best High Gloss Concrete Sealers

There are a few types of high gloss sealers that can be used to seal concrete. The best high gloss concrete sealer will depend on the location and condition of the concrete, and how much time you want to invest into prepping the concrete for the coating.

The best high gloss concrete sealer for interior or exterior concrete is an acrylic sealer. Acrylic sealers are very easy to apply, require little to no maintenance, and will provide a lasting high gloss finish on virtually all types of concrete surfaces. They can be applied to smooth and porous concrete floors, concrete driveways, concrete walkways, concrete patios, and pool decks. They can also be applied to concrete pavers.

Acrylic sealers are the only type of high gloss sealer that can be applied without acid etching or grinding the surface. Acrylic sealers imply require a clean and dry surface. From there, 1-2 coats can be applied with a roller or pump sprayer. Acrylics are available in both water and solvent based formulas. To learn about the differences, read our Acrylic Sealer Review article.

Best High Gloss Acrylic Concrete Sealers:

Acrylic sealers are UV resistant and will help to protect concrete against deterioration caused by water absorption and surface abrasion. Acrylic sealers have some resistance to oil on gas, but the resistance is very limited. If oil and gas is left on an acrylic sealer for an extended period of time, it will have to be repaired. If you constantly work on cars, or need resistance to oil and gas, a urethane coating should be used. Acrylic sealers are also sensitive to moisture. If you have concrete with 5-8+ LBS of moisture, you should consider a high gloss epoxy coating instead. For information on high gloss coatings, view our Garage Coating Reviews article.

Best Practices for Applying High Gloss Concrete Sealer

Not all concrete is the same, and not all sealers are the same, which is why not all levels of gloss are the same. Follow these steps when applying a high gloss acrylic concrete sealer to help achieve a consistent high gloss finish:

  • High gloss concrete sealers should be applied to concrete that is clean and completely dry. If it rained, or if the concrete was cleaned with water, the concrete should be allowed to dry for a full 24-36 hours. The dryer the concrete, the better the penetration and bond. Once the high gloss concrete sealer is applied, the surface should remain protect from water for at least 24-36 hours.
  • Most concrete will require two coats of sealer to get a consistent high gloss finish. When applying a solvent based acrylic sealer, space the coats out by 12-24  hours. This will give the first coat time to fully cure and prevent the second coat from being absorbed into the concrete. A strong base coat will force the second coat to sit on the surface, leaving the concrete with a higher level of gloss. This isn’t possible to do with water based acrylics sealers, but with solvent based acrylic sealers it is.
  • Apply the sealer in the late afternoon or early evening so that the concrete has been given sufficient time to cool down from being exposed to the sun. If a high gloss sealer is applied to a hot surface, bubbles and blisters can occur in the coating.

Re-Coating with a High Gloss Concrete Sealer

If your concrete has a sealer on it you want to make sure that the high gloss sealer you put over it will be able to bond. Here is what you can reseal your concrete with based on what your concrete is currently sealed with:

  • Silicate Concrete Sealer – If your concrete is sealed with a silicate concrete sealer you can reseal the concrete with a high gloss water or solvent based acrylic sealer.
  • Silane-Siloxane Concrete Sealer – If your concrete is sealed with a Silane-Siloxane concrete sealer you can reseal the concrete with a high gloss solvent based acrylic. You can’t use a high gloss water based acrylic sealer because the Silane-Siloxane water repellent will cause the acrylic to bead off the surface.
  • Water Based High Gloss Acrylic Concrete Sealer: If your concrete is sealed with a water based acrylic concrete sealer then it needs to be resealed with a water based acrylic concrete sealer. If you apply a solvent based acrylic sealer over a water based acrylic sealer, the solvent based material will attack the water based material, resulting in sealer failure.
  • Solvent Based High Gloss Acrylic Concrete Sealer: If your concrete is sealed with a solvent based acrylic concrete sealer it needs to be resealed with a solvent based acrylic concrete sealer. If you apply a water based acrylic sealer over a solvent based acrylic sealer the solvent based material will attack the water based material, resulting in sealer failure.