How to Stop a Leak in a Motorcraft

Fixing a leak is essential to keeping any motor craft afloat. A leak left unattended to will continuously take in and filter water, causing more substantial damage to your boat, jet-ski or other motorized means of water transportation. Take your time repairing a leak before placing the craft back into the water to ensure the damage is completely repaired. Using a flexible water-resistant epoxy provides the damage surface with a durable coating that can withstand vibrations caused by the motor and water.

Things You'll Need

  • Flexible water-resistant epoxy
  • Plastic sheet
  • Scissors
  • Masking tape
  • 80-grit sandpaper
  • Flexible caulk
  • Putty knife
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Instructions

    • 1

      Fill the damaged surface with flexible water-resistant epoxy, which is typically available at your local home or water sport supply store.

    • 2

      Cut a plastic sheet to cover the damaged surface. Press the sheet atop the surface to flatten the epoxy. Secure the sheet to the surface with masking tape. Allow 24 hours for the epoxy to dry.

    • 3

      Remove the plastic sheet. Sand away extraneous dried epoxy or plastic with 80-grit sand paper.

    • 4

      Cover the surface with flexible caulk. Spread the caulk evenly over the entire damaged surface with a putty knife. Allow 24 additional hours for the caulk to dry.

    • 5

      Sand the caulked area with 80-grit paper. Repeat steps one through five as necessary to ensure a thorough fix.