What is the best temperature for applying concrete sealer?

The best temperature range to apply a concrete sealer or coating is when the air and surface temperatures are between 50-85 degrees Fahrenheit. The concrete should remain at this temperature during the time of application, and until the concrete sealer or coating is fully cured.

If you apply a sealer or coating when the air or surface temperatures are too cold, there is the potential the sealer cannot properly cure, prolonging the curing period or permanently stopping the curing process altogether. If you apply a sealer or coating when the air or surface temperature is too warm, you run the risk of premature evaporation, bubbling, delamination, or failure.

So, what if you live in a warm climate like Arizona, Florida or Nevada, and it rarely drops below 85 degrees Fahrenheit? Simply apply the sealer during the late afternoon – evening time.  When applying sealers and coatings above the suggested temperature range, it is best to avoid full sunlight.  We always recommend calling a Foundation Armor technician to discuss your application and to verify if the sealer can be applied in the recommended temperature range.