Defy Marine Seal for Concrete 5 Gallon

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DEFY Marine Seal for concrete is a silane-siloxane based water repellent formulated for maximum protection for concrete surfaces against the harmful effects of both fresh and salt water exposure. DEFY Marine Seal for Concrete has been designed for use on all types of marine vertical masonry or horizontal concrete surfaces such as docks, piers, bulkheads and pilings.

  • Environmentally friendly for "Clean Marinas"
  • Extreme Salt Water Protection
  • 250 VOC Compliant
  • Rapid dry time

This high performance product bonds with the minerals in concrete and masonry to provide long lasting water repellency and freeze/thaw protection. DEFY Marine Seal for Concrete is 100% breathable, non film-forming, and when properly applied, will not alter the surface's appearance. DEFY Marine Seal for Concrete is ideally suited for use on masonry and cement surfaces that are moderately porous, exhibiting surface imperfections of no more than 0.50 mm.

Product Data Sheet


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  • We will reply to your comment shortly
    Amie · 07/24/2020
    Can this be used to seal a concrete water fountain?
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    daniel · 06/16/2020
    Is this applicable to seal concrete driveway?

    • We will reply to your comment shortly
      The Sealer Store · 06/16/2020
      • We will reply to your comment shortly
        daniel · 06/16/2020
        Great, appreciate your response.
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    Bill Howard · 06/15/2020
    I have a upper deck concreate deck above my boat with small hair line cracks that lets some water through to drip on my boat. Will this product have enough consistency to stop fill the small cracks?
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    Dan Downes · 04/11/2020
    I have recently (6 months ago) had a 70'x8') concrete dock built in the Florida Keys. Please advise to the best clear saltwater protective sealant I can apply and give me any estimate as to the number of gallons that will be needed. Thank you!
Parameters of Product: Concrete and Brick Paver Sealers
Application Method
Pump Sprayer
Interior or Exterior
Your Surface Type
All Surface Types
Defy Sealers
Free Shipping
Available Sizes
5 Gallon
Water or Solvent Based
Water Based
Enhance Look
No Wet Look or Gloss