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J-B Weld MarineWeld Epoxy Syringe



2350 PSI

J-B Weld J-B MarineWeld™ is a specially formulated two part Cold-Weld™ adhesive system that provides strong, lasting repairs for bonding different or similar surfaces, such as metal, composites, fiberglass and others.

MarineWeld™ sets in 20 minutes at room temperature. At full cure, its color is white. It may then be shaped, tapped, filed, sanded and drilled, retaining full strength above or below the waters’ surface. MarineWeld™ has a 1:1 mixing ratio and tensile strength of 2350 PSI.


Great For:

  • Boats

  • Personal Watercraft

  • Deck & Hull Accessories

Set Time

20 minutes

Functional Cure

15 - 24 Hours

Cure Colour


Made in the USA US flag



Clean repair area of dirt, grease, oil, paint, rust etc. For best results use a detergent or degreaser to first clean the surface, then roughen surface with file or coarse snadpaper to provide best repair.


After removing the replaceable cap, press down on plunger and squeeze equal amounts onto a disposable surface and mix thoroughly.


Press with appropriate tool in an even coat, weld bead or extruded shape as needed.


Sets in 20 minutes. Cures in 15 - 24 hours. Allow 4 - 6 hours before handling, and 15 hours (minimum) before putting object back in use.

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