3200 PSI
Set Time
20 Minutes
Cure Time
15-24 Hours
Cure Color
Use On
  • Epoxy & Adhesives
  • Fiberglass
  • Glass
  • Under Water/Wet
  • And More

MarineWeld Syringe

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 3200 PSI.

Great For
  • Boats
  • Personal Watercraft
  • Deck & Hull Accessories
Made in the USA US flag

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Prepare: Clean repair area of dirt, grease, oil, paint, rust, etc.*
Mix: After removing the replaceable cap, press down on plunger and squeeze equal amounts onto a disposable surface and mix thoroughly.
Apply: Apply with appropriate tool in an even coat, weld bead or extruded shape as needed.
Dry: Sets in 20 minutes. Cures in 15-24 hours. Allow 4-6 hours before handling and 15 hours (min.) before putting object back in use
* For best results use a detergent or degreaser to first clean the surface, then roughen surface with file or coarse sandpaper to provide the best repair