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Product Details

Gluvit is a waterproof epoxy sealer used to find, fill and seal leaks. Use it on cracks in fiberglass, metal, and wood on your boat or in your home.

Application results in a hard, impact and abrasion resistant protective barrier coat that minimizes fiberglass blistering and corrosion. In addition, the hard protective coating flexes with hull movements to bridge and seal hairline cracks. Use Gluvit on aluminum fishing boats to repair leaky aluminum seams and rivets.

The cure rate has a long working time that allows penetration into cracks to seal and strengthen. Gluvit fills minor chips and pinholes, and is easily painted with most bottom or topside coatings and paints.

Info & Guides

Gluvit Application Information

A few strokes of Gluvit can renew deteriorated wood. It penetrates and strengthens decking, molding, and stringers. It forms an excellent impact- and abrasion-resistant barrier coat that minimizes fiberglass blistering and corrosion. Gluvit seals leaky aluminum seams, rivets, and leaks around decks or cabins.

Repair Leaky Aluminum Hulls:

Leaky seams in aluminum hulls can be difficult to seal. Gluvit is an excellent leak sealer and barrier coat for all types of surfaces. This waterproof epoxy flexes with hull or deck movements to resist the checking or cracking associated with typical epoxy systems.

Remove all contaminants from repair area with solvent or a strong detergent cleaner. For maximum adhesion, sand the area with 80-100 grit sandpaper, then wipe with dry, clean, rags. Apply a coat of Gluvit with a roller or brush or at 6-8 mils, and tip lightly with a foam brush to smooth the surface, if desired.

The finely ground fillers in Gluvit offer superior abrasion resistance. For exceptional corrosion resistance, especially in salt water, Gluvit can be applied to rivets or an entire hull. This epoxy has a working time of about 60 minutes at 72°F to provide ample time to complete bigger projects.

Renew Rotted or Soft Wood:

Dry rot is a common problem on boats with wood cabins. Gluvit can help to restore damaged wood and seal it against further deterioration. Gluvit has a long open time that allows it to penetrate deep into porous or rotted wood.

Drill small holes in the damaged area and fill with Gluvit. It will be absorbed by the wood, and its hard protective coating will seal against further attack by vermin or weathering.

Gluvit's protective waterproof coating strengthens stringers, decking and molding, and it flexes with hull movements to maintain effective bridging.

Application Directions

  1. Remove contaminants such as grease, oil, and dirt with lacquer thinner or strong detergent. If cleaning an aluminum surface, use an Aluminum Prep Wash to help scarify the surface. For maximum adhesion, sand to a bare surface with 80-100 grit sandpaper. Remove all grit and dust after sanding with another rinse of solvent.

  2. Fill deep holes (more than 1/8" in depth) with Marine-Tex Epoxy Putty before applying Gluvit.

  3. Pre-proportion sufficient resin and hardener in the correct ratio to cover the areas to be sealed and/or repaired. Gluvit can be broken up into separate batches if desired. Mixing ratio by volume for batches is 5 parts resin to 1 part hardener. If you will be using the entire kit at once, add the entire contents of the hardener into the resin and thoroughly mix contents for 3-4 minutes to insure complete mixing. Be sure you can use the entire kit within the pot life or working time period.

  4. Apply Gluvit with a brush or roller at 6-8 mils film thickness. Lightly drag a foam brush in long even strokes over the freshly applied coating to smooth the surface. After the first coat cures for 12 hours at 72°F, a second coat can be applied for optimum performance.

  5. Gluvit hardens overnight. Allow 48 hours at 72°F for maximum strength. Working time and cure will be longer at lower temperatures, and shorter at higher temperatures. Note: If the ambient temperature is below 50°F, pre-condition Gluvit and the work area to at least 55°F.

  6. Gluvit offers an open time of about 60 minutes at 72°F to provide adequate working time for larger jobs, such as an entire deck or hull. Gluvit cures in 24-30 hours at 72°F. Apply heat to speed cure if necessary or if the temperature will be below 55°F.


  7. Gluvit may be applied over mildly damp (not wet) surfaces. Do not apply Gluvit when rain is pending. In the uncured state, Gluvit will absorb rain water, turn milky white, and take longer to cure—but it will harden in time.


  8. To overcoat Gluvit after cure, wash the surface with warm soapy water or a dilute vinegar solution and a fine abrasive pad, or wet sand, then dry with clean towels or cloth. Frost-sand surface with 80-100 grit sandpaper to remove any gloss. Gluvit can be overcoated with any marine paint or other coating compatible with epoxies. Polyester resins, such as gelcoat, do not adhere well to epoxy material.

Note: All Gluvit containers are packaged by weight. They are slack-filled (not filled to the top), which leaves sufficient room for a power mixer to blend the resin and hardener thoroughly.

Technical Information

Technical Data

  • May be pigmented with Fiberglass Evercoat coloring agents
  • One coat 10 mils thick withstands 4000 lbs/sq.ft. of water pressure
  • Neutral color can be pigmented or painted
  • Pot life is 1 to 2 hours
  • Qt = 2 lb unit ; Gal = 8 lb unit
  • Can be used on boats, surfboards, snow boards, etc.
  • Coverage (Quart): 25 sq. ft. @ 10 mils; 25-35 sq. ft. @ 8 mils
  • Coverage (Gallon): 100 sq. ft. @ 10 mils; 100-130 sq. ft. @ 8 mils

Reviews for Marine-Tex Gluvit Epoxy Water Sealer

10 of 33 Reviews

April 19, 2021

Unbelievably Awesome
By Tj from Port st Lucie Florida

Verified Purchase

I used this on my 12ft jon boat. I bought the gallon size and I had enough to coat the boat Inside and outside( basically painted it) The boat use to leak like crazy now not a drop of water! I was very skeptical reading the other reviews but I super happy I chose to buy the stuff. What I didn't like was i put it in a air tight container to go eat something between coats (30) mins and when I came back it had hardened to the point of being unusable. My advice don't mix to much the 1st time or if you do, use it all!

It Truly works !!!!!
Bottom Line Yes, I would recommend to a friend

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September 23, 2020

Very disappointing
By Dave from Calif.

Verified Purchase

Have used gluvit in the past on my drift boat With great success, either this product is old or mixed wrong from the factory it never set up no I'm set with a mess of trying to get this gooey stuff off my aluminum hull

Bottom Line No, I would not recommend to a friend

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July 31, 2020

Good product. Use as directed. Will droop in high humidity.
By TJ from Connecticut

Verified Purchase

I used Gluvit as an epoxy primer over two new aluminum pontoons. Finished it with Totalboat Alumipaint. Looks great

Bottom Line Yes, I would recommend to a friend

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April 29, 2018

Highly recommend
By Bobby nastasi from Grafton, Massachusetts

Verified Purchase

Works great easy to use.

1982 sea nymph 175ss
Bottom Line Yes, I would recommend to a friend

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October 3, 2016

shelf life
By DW from LA

worked great for what we wanted. To cover the rivets in the bottom of an aluminum boat. NO LEAKS. ; ) east to mix and spread. Use all you can then, no shelf life after you mix. We did however used 1 gallon and did 2 mixing. Seemed do just fine.

Bottom Line Yes, I would recommend to a friend

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June 10, 2016

This sealer worked as expected so far. I would buy again.
By malcat from Phoenix,AZ

Verified Purchase

This sealer seemed to mix well. I bought the "big" can, which suggests mixing all at once, which was completely beyond the scope of this initial project. So I measured and mixed and sealed , all seems good. I hope the remainder has some shelf life as I have more applications. Set up time was fine, gave me time to work in the desert, and cured well in 24 hrs.

Bottom Line Yes, I would recommend to a friend

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March 18, 2016

Great Product
By Bayou Dorcheat from LA

Verified Purchase

Used to cover entire bottom of an aluminum boat. Worked like a charm.

Bottom Line Yes, I would recommend to a friend

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January 26, 2016

excellent repair
By Tub runner from Utah

Verified Purchase

Seal cracks and leaking rivets

Bottom Line Yes, I would recommend to a friend

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January 15, 2016

Great product
By Fernando from Orlando, Florida

Verified Purchase

Great product easy to use, rolls on well, dries within a few hours, sands easily if needed, I used it on the bottom of my 16 ft aluminum boat, because I had several small leaks. Use Marine teco to fill in any pin holes, scratches or imperfections, this product covers well but I recommend two coats. Be sure to remove all oxidation from the aluminum, I used a high speed pneumatic tool with wire wheels. Can't wait to put the boat in the water, I am confident the boat will not leak.

Bottom Line Yes, I would recommend to a friend

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January 7, 2016

I would definitely buy this product again.
By Waterfowl hunter from Tacoma,Wa

Verified Purchase

I use this to seal my 12 foot aluminum boat for duck hunting and it worked great. Very easy to use and dried up quickly but still let it sit the recommended time.


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