MCOR EXT Underwater Epoxy Stick

MCOR EXT Underwater Epoxy Stick is a two-component, fiber reinforced, ready-to-use wet or underwater “cold” repair polymer compound putty-stick.  MCOR EXT Underwater Epoxy Stick can be drilled, tapped, machined, ground, dressed, filed and painted. Terrific for repairs, filling, patching, and plugging leaks. MCOR EXT Underwater Epoxy Stick bonds to metals including aluminum; will also bond to fiberglass, wood, concrete, glass and most plastics.

MCOR EXT Underwater Epoxy Stick works simply by cutting the amount desired, kneading by hand to a uniform consistency and apply. After mixing, it forms an industrial-strength polymer compound that can be molded into shapes or used to build up, patch and/or repair. Once cured it has high compressive strength and great adhesion on wet and submersed surfaces. As MCOR EXT Underwater Epoxy Stick approaches its final curing stages, it is designed to stop leaks in pipes and tanks, and can be used also as a filler for pitting or correcting oversized bolt holes, etc.


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  • All-purpose wet or underwater repairs
  • Seal and plug leaks
  • General filling and patching


  • Wet and underwater grade, including marine repairs
  • Extended pot life for drivers time to reach their target
  • Adhesion to metals, fiberglass, wood, concrete, glass and most plastics
  • Can be drilled, tapped, sanded, and machined
  • Ease of application
  • Ready-to-use hand mix
  • Can be drilled, tapped, sanded, and machined
  • 100% solids, no VOCs, no solvents

Kit Offerings

24x Kit (24 x 4oz, DGY)
24 x 4oz, 18cm EXT Underwater Epoxy Stick, White



Underwater repair