Is it possible to reapply this GBS concrete floor sealer after 15 years?
Green Building Supply, Penetrating Concrete Sealer
This product offers a 15 year warranty. After 15 years, can I apply this coating again?
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Open Feb 03, 2026 - 12:54 PM
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Staff Answer
Feb 03, 2026 - 12:54 PM
This Green Building Supply Penetrating Concrete Sealer is considered one of the best penetrating concrete sealers available, likely outlasting your home. There’s nothing that will wear it out. However, if the application wasn’t thorough and the concrete remains porous, you can reapply. Test absorption with water—if it beads, the concrete is sealed and additional sealer or a concrete moisture sealer won’t absorb. This indoor concrete sealer offers long-lasting, effective protection.
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Green Building Supply, Penetrating Concrete Sealer
Safe, permanent waterproofing sealer for concrete, masonry, stucco or brick Cold Weather AlertThis product may not perform properly if applied below the required temperature. Please check installation instructions on our website. Because this is a water-based product, it may freeze during shipping. ...
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