Heavy-duty underwater adhesive for boats, docks, and marine repairs.​

Strength Where It Matters Most

Out on the water, repairs can’t wait. From loose fittings on a dock to leaks along a boat’s hull, you need an adhesive that stands up to constant moisture and movement.

MarineTak™ is engineered for demanding marine environments, giving you dependable performance whether you’re above or below the waterline.

  • Works wet or dry: Bonds instantly to damp, wet, or submerged surfaces.
  • ​Multi-surface grip: Adheres securely to wood, cement, metal, fiberglass, and plastics.
  • Built for marine life: Flexible once cured, resisting vibration, shifting, and wave impact.
  • Long-term durability: Creates a watertight hold that endures saltwater, sun, and weather.

From quick dockside fixes to underwater construction, MarineTak™ delivers the confidence you need when the water won’t wait.

MarineTak™ vs. 3M 5200

Independent testing shows that MarineTak™ outperforms 3M 5200 Marine Sealant across a wide range of materials, including stainless steel, copper, brass, aluminum, fiberglass, and more.

MarineTak™ Applications

How to Use MarineTak™

1. Prepare Surface

Clean and rough up the surface if needed. Surfaces don’t need to be dry, but they should be free of loose material.

2. Apply Adhesive

Use a caulk gun or squeeze directly from the tube. Apply deliberately at the point of use.

3. Let It Set

MarineTak™ reacts with moisture, so curing begins immediately. It will form a skin as it sets. 

​4. Clean Up

​Uncured adhesive can be cleaned up with acetone or rubbing alcohol. Once cured, it can only be removed mechanically (sanding or chipping).

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