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Product Details

TotalBoat Seal is a fast-curing elastomeric marine sealant that adheres tenaciously to fiberglass, wood, metal, glass, Starboard & vinyl. It creates a highly elastic waterproof seal ideal for bedding hardware, windshields, and portholes, as well as flush & overlapping joints. Once cured, Seal is paintable and sandable.

Seal is highly UV stable and will not sag on vertical surfaces. It boasts superior properties over most leading sealants including strength, adhesion, elongation, and shelf life. For use above and below the waterline. Do not use on wood deck seams.

Available in White only. Choose from a 3 oz. tube or a 10 oz. cartridge. Cartridges fit standard 290ml caulk guns.

Important: TotalBoat Seal is designed for bedding and sealing, and does not have the strength properties of bonding adhesives.

Tech Specs
Item Number Description Color
TB-SEALWHT3OZ 3 oz. tube White
TB-SEALWHT 10 oz. cartridge White
Technical Specifications
For Use on these Surfaces Fiberglass, metal, wood, vinyl, glass, and StarBoard
Non-conductive? Yes. Suitable for use on electrical connections.
Is Priming Necessary? No
Suitable for Use on Teak Deck Seams? No. Do not use on teak deck seams.
Application Temperature 40-104°F
Full Cure 1-7 days, depending on temperature and joint depth.
Cleanup Mineral spirits
Shelf Life 3 years from date printed on tube
Info & Guides

Directions

Surface must be clean, dry, and free from any dust, grease, oil, rust, or dirt. Use a hand or pneumatic caulking gun. Cut tip and puncture seal. Priming is not necessary. Skins in minutes. Make sure sealant is completely cured before painting.

Technical Information

Additional Features & Information:

  • Highly UV stable
  • Seals ports, beds hardware, and stops leaks
  • Elastomeric sealant can be wet sanded and painted after curing
  • Cures in temperatures from -20°F to +120°F
  • Twists, bends, expands, compresses
  • Non-sagging and non-staining

PERSONAL SAFETY

WARNING: This product can expose you to chemicals including toluene, which is known to the State of California to cause reproductive toxicity. For more information, go to www.P65Warnings.ca.gov

Be sure to read all safety information on the label and in the SDS (safety data sheet) before using this product. Ensure adequate ventilation, especially in confined areas. Eyes: Wear safety glasses with side shields (or goggles). Avoid contact with eyes. Skin: Wear protective gloves. Use in a well-ventilated area. When using, do not eat, drink or smoke. Wash hands thoroughly after handling the material. Routinely wash work clothing and protective equipment to remove contaminant. Keep out of reach of children!

Reviews for TotalBoat Seal Elastomeric Marine Sealant

10 of 52 Reviews

January 8, 2024

Didn't Work for Me
By Kris from Brookings, Or

Verified Purchase

It didn't stick to the materials I was using for my rain barrel and the bottom of the tube burst open getting the stuff all over my hands. I ended up tossing the whole mess in the trash.

Bottom Line No, I would not recommend to a friend

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June 12, 2023

Works well, but be mindful of the timing
By Defever from RI

Verified Purchase

Rebedded 4 engine room ventilation covers, each approx 4' x 1'. Did all 4 and saved the edge finishing for last, but lost the "clean edge" look because the sealant started setting up. Recommend Totalboat provide specific guidance on allowable time to complete the "finish edge" work after dispencing. Would certainly help those doing larger projects.

Bottom Line Yes, I would recommend to a friend

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May 31, 2023

Nope, nope, nope
By Brent from Coldspring, TX

Verified Purchase

This stuff starts setting and becomes unworkable in an extremely short time, about 5 seconds out of the nozzle. And that was not even on a hot day for my area, and indoors in a garage. I'll wait and see how it lasts in Southeast Texas heat and sun before I give it a total thumbs-down, but based on application alone, I will not be buying it again nor recommending it.

Bottom Line No, I would not recommend to a friend

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May 9, 2023

works well
By cr from tampa fl

Verified Purchase

It is a good sealant make sure you have mineral spirits for clean up.

Bottom Line Yes, I would recommend to a friend

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July 19, 2022

better for a pro
By Ed in west Michigan from west Michigan

Might be better if a pro used this. It flashes off so quickly.

Bottom Line No, I would not recommend to a friend

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May 21, 2022

Buy 2
By Double g from Ny

Verified Purchase

Bought 2 tubes. 1st tube kept pumping out caulk even when out of gun. 2 nd tube was fine. Have used this the past few yrs. Works great.

Bottom Line Yes, I would recommend to a friend

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November 23, 2021

Caulk
By Piglet from Sacrament

Verified Purchase

This is the semi permanent caulk I've ever used

Bottom Line Yes, I would recommend to a friend

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October 21, 2021

I will continue to buy these.
By Chuck from Lawson, MO

Verified Purchase

I used this TotalBoat Seal to afix my cover board on my center board trunk. I had used some sort of silicon previously and had some water splashing through in rough seas.I didn't want to use 5200 as I feared it would be too permanent. In truth, I haven't tried to remove the cover board and hope to not need to anytime soon but it applied nice and neat and somehow I didn't get it all over myself which is pretty much SOP with 5200, Ha!

Bottom Line Yes, I would recommend to a friend

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September 5, 2021

Perfect for re sealing marine windows
By Kinny from Watergate marina

Verified Purchase

Set up time is very fast . Was starting to dry while setting my windo in

Bottom Line Yes, I would recommend to a friend

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August 4, 2021

Beware, skins in minutes
By Joe from Rochester, NY

VERY short working time. Not good for large pieces, like windows. Ask me how I know...

Bottom Line No, I would not recommend to a friend

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