DEFY Composite Deck Waterproofing Sealer

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$52.47
 Back to: Defy Composite Deck Products

Important Note! Defy is introducing new Product Labels for 2019. The same great products are still inside, just new and improved labels.

-Please note that you may receive the new or older labels during this transition period!

Defy Composite Sealer Label Change

1 Gallon Size

DEFY Composite Deck Waterproofing Sealer is an extremely durable clear finish that helps prevent the return of black stains on composite decks as well as protect against the damaging effects of water, fungi, and UV radiation on composite wood surfaces. This V.O.C. compliant, water-based product is fortified with zinc nano-particles, a natural deterrent to recurring black algae stains. There are over 30 TRILLION of these zinc nano-particles per square inch that protect your composite wood by blocking out the sun's harmful UV rays, helping protect your composite deck from color fade, moisture and fungal growth.

DEFY Composite Deck Waterproofing Sealer can be applied to all natural and composite wood surfaces.

DEFY Composite Deck Waterproofing Sealer contains zinc nano-particles that reflect the damaging Ultraviolet Rays from the sun. When you reduce the size of these zinc particles down to the nano level, they become invisible to the naked eye. These nano-particles are distributed at a rate of over 30 trillion per square inch of surface area to provide protection from the sun in much the same way as they do when used in sun blockers and sunscreen lotions. Not only will this help with prolonging the graying, but the nano-particles are highly resistant to mold and mildew, enabling you to retain the natural color.

DEFY Composite Deck Waterproofing Sealer is available in a crystal clear finish.
DEFY Composite Deck Waterproofing Sealer Uses

DEFY Composite Deck Waterproofing Sealer is designed to be used on exterior surfaces including:

  • composite decks
  • all natural wood surfaces

Before using DEFY Composite Deck Waterproofing Sealer, clean the deck with DEFY Composite Deck Cleaner. This will generally clean and restore previously treated surfaces to their original appearance. The surface should be recoated when graying initially starts to appear.

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  • We will reply to your comment shortly
    Steve C · 07/24/2021
    I have a reddish-orange colored TimberTech deck that the previous owners installed in 2012. Whenever we walk on the deck in socks or bare feet, we end up with a reddish-orange stain on the bottom of our feet. Also, whenever we wipe up spilled water, the rag or paper towel turns reddish-orange as well. Will a sealer prevent this? 
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    Phill · 07/20/2021
    Are samples of this product available to test on my trex deck?
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    kevin barrow · 07/09/2021
    hello Kevin from Spanaway Wa. i recently built a storage shed and the interior i finished with osb ,do you have any products i could use to seal this material with / I'm trying to prevent mold or mildew from forming any suggestions if you do not thank you guy
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    Patrick J Coyle · 05/09/2021
    how many square feet in a gallon
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    Earnest Schuler · 08/23/2020
    I am installing a new Moistureshield brand composite deck. Their website advertises that the grade of decking I m buying will fade to its natural color (substantially lighter than when new) in six months. If I apply Defy Composite Deck waterproofing Sealer right after installation will it help delay or prevent fading for a couple of years?
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      The Sealer Store · 08/23/2020
      No, a sealer will not prevent fading.
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        Earnest Schuler · 08/24/2020
        How come your information says Defy Extreme Deck Sealer "helping protect your composite deck from color fade" but your answer to my question if it would help delay or prevent fading was "No, a sealer will not prevent fading". Can you explain or give more detail?
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          The Sealer Store · 08/25/2020
          It may help it in the short term for a few months but no sealer will permanently prevent the fading that will happen eventually.
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    Janet · 07/30/2020
    We have original vintage Trex and get tiny splinters when walking on barefoot. Will this sealer help?
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      The Sealer Store · 07/30/2020
      No, a sealer will not lock down splinters.
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    Rose · 07/04/2020
    what amount of coverage does 1 gallon cover?
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      The Sealer Store · 07/05/2020
      About 150 sq feet per gallon.
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    Brian · 06/19/2020
    Hi. Will this work on Trex Transcend product line?
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    Christy · 03/31/2020
    Can you use any of your stain products to slightly darken composite deck material? If so, Would this be used prior to the above sealant or instead of?
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      The Sealer Store · 03/31/2020
      Sorry but no, we do not have stain that work on composited wood.
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    Anthony · 03/30/2020
    Will this product work on plastic decking?
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      The Sealer Store · 03/30/2020
      Composite decking only. It will not work if 100% plastic. No sealer will.
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    harvey · 07/29/2019
    how many sq ft will the 1 gal sealer cover
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    The Sealer Store · 08/28/2017
    Jack Perry:
    Hi, I have a porch with the original vintage of Trex Composite (approx 2004-5). Will this be ok on this type of deck and can you tell me if you can purchase it in Western Canada. If not I could pick it up in either Eureka Mt or Oroville Wa. via delivery or if available at stores there. I need sufficient cleaner and sealer to cover about 250 sq ft. if this product will not react to Trex. Thanks

    It will work on this. There are not dealers in those locations but we can ship to Canada or any US address that you may have. One cleaner and 2 gallons of sealer for this.
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    Jack Perry · 08/28/2017
    Hi, I have a porch with the original vintage of Trex Composite (approx 2004-5). Will this be ok on this type of deck and can you tell me if you can purchase it in Western Canada. If not I could pick it up in either Eureka Mt or Oroville Wa. via delivery or if available at stores there. I need sufficient cleaner and sealer to cover about 250 sq ft. if this product will not react to Trex. Thanks
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    The Sealer Store · 05/29/2017
    Keith Lindsay:
    I've got a 9 year old Timber Tech deck that's showing considerable fading and surface deterioration. Which product would you recommend: DEFY Extreme Stain (referenced in your online article) or DEFY Composite Deck Waterproofing Sealer? Thanks.

    Neither product will change the look or enhance the fading that has happened. They will seal to help from mold and prevent further deterioration. Use the composite sealer.
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    Keith Lindsay · 05/28/2017
    I've got a 9 year old Timber Tech deck that's showing considerable fading and surface deterioration. Which product would you recommend: DEFY Extreme Stain (referenced in your online article) or DEFY Composite Deck Waterproofing Sealer? Thanks.
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    The Sealer Store · 04/02/2017
    Richard Beeson:
    I have a similar question to one listed. My tree about 4 years old is redwood color and after sun and washing has turned to a faded color. I like the color after it rains, which is near original. Will this product return the Trex to near the original color or wet look.

    It will not darken the color or give a wet look.
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    Richard Beeson · 04/02/2017
    I have a similar question to one listed. My tree about 4 years old is redwood color and after sun and washing has turned to a faded color. I like the color after it rains, which is near original. Will this product return the Trex to near the original color or wet look.
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    The Sealer Store · 05/29/2016
    Sorry, but the manufacturer does not offer this in 5 gallon pails. Just single gallons.
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    Peter Bannister · 05/28/2016
    Can I buy this in a five gallon pail?
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    Kat · 10/14/2015
    I would use a cleaner first before applying DEFY sealer, but there still might be some of the old sealer left on the deck as I'm not sure all the existing sealer would be removed during the cleaning. How would I prep my deck to use DEFY knowing that another sealer is on it?