Free shipping on orders over $99.99! Don't miss out!

This item is eligible for free shipping on orders over $99.99

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, 10 oz. cartridge, or 6-pack of 10 oz. cartridges. 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
TB-SEALWHT6 Six 10 oz. cartridges 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 42 Reviews

July 3, 2021

Excellent bond
By 1deepseadiver from Walnut Creek CA

Verified Purchase

I used this to re-bed the glass on an aluminum frame diamond sea glaze window. It bonded exceptionally to the frame and the glass.

Bottom Line Yes, I would recommend to a friend

Was this review helpful to you?

June 26, 2021

Too long to dry
By Chris from Mystic

Verified Purchase

The product seems to do a good job sealing but it takes a LONG time to cure.

Bottom Line No, I would not recommend to a friend

Was this review helpful to you?

May 21, 2021

Quality Product
By John from MA

Verified Purchase

Finally a product that bonds/seals Starboard material. Easily applied like any other sealant BUT plan accordingly and work quick as product sets up fast (can make cleanup more difficult for that "finished" look. Smooth your beads as you go for best results.

Bottom Line Yes, I would recommend to a friend

Was this review helpful to you?

May 4, 2021

Very fast setup time
By Pete S from Little Egg Harbor, NJ

Verified Purchase

I bought to reseal window that were leaking. I had a total of about 3 linear feet. By the time I got all the way around the window, it was already skinning over. That's good and bad. It's good that is will setup quick, but make sure you are prepared. Once you start you can't stop in the middle (like you might with silicon). The product seems to adhere well and I only gave 4 stars because it's only been a month - no leaks so far - hopefully good for another 10 years. Tape off around area and use soapy water on finger to smooth out. It will be pliable and workable for a very short window. Just have everything ready. Definitely not for someone who doesn't have caulking experience.

after
Bottom Line Yes, I would recommend to a friend

Was this review helpful to you?

January 24, 2021

good seal and sets firm
By Jim from Gulf of Mex

Verified Purchase

It is easy to use, spreads out, and fills spaces openings around fasteners. it dries and sets up firm but gives time to make a seam smooth with a lite fingertip pull. A cauk gun tube goes father than expected so don't cut the tip off for too large an opening.

Bottom Line Yes, I would recommend to a friend

Was this review helpful to you?

September 3, 2020

Great product
By Shine from Warren

Verified Purchase

I used it to seal a new transducer for my depth finder was just the right consistency dried overnight I've had nothing but good luck with Jamestown products

Bottom Line Yes, I would recommend to a friend

Was this review helpful to you?

August 17, 2020

Easy to work with, good results.
By Alfred Poor from Chesapeake City, MD

Verified Purchase

We used this to create a seal between the teak toe rail and fiberglass deck on our Tartan 34C. In the past, we've had trouble with water getting under the film of the varnish coating resulting in large sections peeling off. We hope that this will prevent that in the future. We were working in 90+ weather and the caulk set so quickly that we were able to paint over in an hour or so.

Bottom Line Yes, I would recommend to a friend

Was this review helpful to you?

July 2, 2020

probably would not use again
By chris from naples fl

takes a long time to cure if the sealant is not exposed to air, when bedding and sealing screws after two weeks it is still not cured.

Bottom Line No, I would not recommend to a friend

Was this review helpful to you?

June 30, 2020

Same product, less waist.
By Capt Jim from Wenatchee, WA

Verified Purchase

Originally I used this product to seal window frames on my house, then I used it when installing deck hardware on my sailboat. It does an excellent job of beding the hardware and assuring no water intrusion into the deck core. My most recent order was for the smaller tubes, so I have much less wastage when there is several months between usage.

Bottom Line Yes, I would recommend to a friend

Was this review helpful to you?

June 24, 2020

Very Good
By T from Long Island NY

Verified Purchase

I have been using life caulk and life seal products for years, my most recent project was changing multiple through hulls below the water line,The price of boat life has left me looking for an alternative,so I read the reviews on the total boat sealant and gave it a shot.As with my other experiences with this brand I was not disappointed, the product behaved just as life seal,cleaned up easily and did what it was applied To do..If i was to make one comment and by no means negative but i find total boat as with life seal skims very quickly,still cleans up well but you got no time to dilly dally if you want a really clean edge without bathing in a solvent...overall i will be using this product moving foward,,cant beat the price and so far the performance is what i was hoping for...

Bottom Line Yes, I would recommend to a friend

Was this review helpful to you?