MARINE Premium Wood Sealer For Docks, Piers | Seal-Once MARINE Premium Wood Sealer For Docks, Piers | Seal-Once

MARINE Premium Wood Sealer

(11 customer reviews)

$68.98 USD$339.98 USD

  • Safe for use over open water and non-hazardous to aquatic life
  • Special formulation for wood docks & decks near open water
  • Extends useful life of boat docks, pool decks & resists salt water spray
  • Advanced nanotechnology provides superior protection against water
  • Non-film forming – will not cause surface to become slippery
  • Water based, low VOC formula is safe for use near water & marine life
  • Approximate coverage: 250-350 sq. ft./gallon per coat. Based on surface porosity.
  • View All Product Information

Additional information


1-Gallon, 5-Gallon


Bronze Cedar, Clear, Coastal Grey, Natural

11 reviews for MARINE Premium Wood Sealer

  1. Jim T.

    Our boat dock looks almost brand new after using the all wood cleaner and applying Marine sealer. Given how often this dock gets wet, we were happy to find a product made for wood boat docks.

  2. Jennifer A.

    We replaced an older pool deck and used Marine to sell the new deck on the recommendation of a neighbor. This deck has water from the pool on it almost daily 9 months out of the year, so we wanted the best product we could find to keep it looking great. My husband was amazed that it did not smell like most sealers and he was able to just brush on, then apply the second coat before the 1st had dried. He was done in a few hours and loved not needing any paint thinner to clean up.

  3. Kim Y.

    This stuff is very low odor, non-toxic product, which I need. It goes on like a thin, milky liquid, but dries clear. I’m glad I bought it.

  4. Robin R.

    I’m very happy with this product. It makes the water bead up just like the mineral oil products. One other thing I like about it is it didn’t darken the wood like the oils do. Sometimes I like the richness of darkened woods, and they also sell stains for this product if you want that, but for this project I was happy to find the color of the wood didn’t change at all.

  5. Lisa

    Easy to use and did a great job on a few Adirondeck chairs we have at our lake house.

  6. Victor R.

    We’ve live on a canal and have been using the Marine for our boat slips for years now.

  7. Roger D.

    Great results after using this on our bridge over a small creek in the back yard. Water beads up and you can see the wood is protected and no water is getting in.

  8. Les W.

    We live on a canal with boat slips and have used the seal-once marine for years. It certainly protects the wood and keeps it from getting slippery when wet. Last thing we need is people wiping out and getting hurt. We also swim and fish in the canal, so nice to know this product is OK to use around water.

  9. Tim Kearn

    Worked well on our cedar walkway leading out to the beach. Application was like a “day at the beach” and we prefer the penetrating aspects that keep it from getting slippery when wet!

  10. Bart

    Exceeded expectations so far. Living in the rainy northwestern USA requires a superior product to seal any outdoor wood structure and over the years I have tried many. Seal-Once covered nicely and the dried product created a beautiful result on our Pergola. The reason I say “so far” in the title is that time will tell regarding the quality of this product. I will try to remember to update in the future with any positive or negative feedback

  11. Harry S.

    This stuff is awesome. Used it to seal a very weathered, unmaintained back deck in a wet area prone to algae growth. Water beads up like crazy on the wood now and the sealer has filled a lot of the weathered gaps in the wood. This gallon did cover less space than advertised, but it was due to the deck being very worn. Keep that in mind if working on a weathered surface. Otherwise, awesome stuff! Applies well with a garden sprayer.

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For customers outside of the United States, please contact our Customer Service department at 1-716-833-9366 to place an order.