TotalBoat Seal 10 oz. Cartridge
TotalBoat TotalBoat by Jamestown Distributors
  • TotalBoat Seal 10 oz. Cartridge
  • TotalBoat Seal 3 oz. Tube
  • Applying TotalBoat Seal

TotalBoat Seal Elastomeric Marine Sealant

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.

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$6.99 / ea
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Tech Spec Product Info User Generated Content
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 

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



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.
Below Water Line (yes/no): Yes
BRAND: TotalBoat
Number Of Parts: One Part
Type: Sealant
Usage: Bonding
4.4 14

Ease of application


The ideal sealant to keep on hand. Used topside on varnished teak, stanchions, chainplates, and fiberglass. Applies easily, tools well, forms a nice bead... and one year after purchase, what's left in the tube is still usable with absolutely no special precautions taken. Shorter cure time than traditional polysulfides. 3M 4000UV (competitor) cures in the tube once opened, and is viscous enough that it works best with a caulking gun. If you don't need a specialty product, keep a 3oz tube of this on hand for all general use.




I have used several tubes of this


It applies more easily than some other products I have used. It seems a little thinner. It seems to also takes a lot longer to cure completely. Mine stayed tacky for several days. It made a good seal but was pretty easy to peel off the excess from teak leaving me wondering if it is going to maintain a seal or have the tensile strength it states on the tube.


Tennessee River


Seems to work very well as a sealant


Needed to replace some old sealant that was letting rain water in. Cleaned out the old stuff well before applying this material and this stuff bonded well to the fiberglass and PVC material I needed to seal around. So far so good, no more leaks..


Newburyport MA


Great Caulk!


Installed 16 new portholes using this product and it was perfect for the job. I'll be using it to bed and waterproof all the stanchions, thru hulls and other hardware as needed. Great intermediate caulking if you don't want the absolute permanence of a 5200 caulk.


Montross, Va.


Very good Adhesive Sealant


We have been very successful using Total Boat Sealant wherever 3M 5200 would be used.

Bills Boats

Seaside Heights NJ


Seal for starboard ice box


Use to create watertight joints on custom made starboard ice chest for a restaurant. Joinery was done with 3M 2part adhesive and SS screws. This made it watertight. I did let it cure for 7 days and seemed to get more strength each day




TotalBoat on a Citroen


Squirted sealant between rubber seal and roof. Will also squirt it between rubber seal and roof rail to completely protect roof and roof rail.


Saint David AZ


Fast drying time.


I used this to seal a leaky rub rail. It seem to dry very fast. Not sure how it will hold up longevity wise but time will tell. The price was much better then 3M product and seem to be very comparable.

Barry Ping "PingMarineCanvas"

Acuhsnet MA


very happy with TotalBoat products


makes a nicer bead than other manufacturers products. Doesn't harden in the tube so less waste.


Marietta GA


description doesn't match the packaging


I have not used this product yet . The technical specs indicate it can be used below the waterline. however it's clearly printed on the tube that it's for above the waterline only. so I guess I'm saving it to use above the waterline when I get to that point .


Rochester New York


TotalBoat Seal Elastomeric Marine Sealant



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