How to Repair a Hole in Isinglass Boat Windows

A window on a boat can sustain damage in the same manner as a window in a home or commercial building. Boat window damage normally occurs from a storm or a natural calamity such as hail or a bird flying headfirst into the window.The operator of a vessel must have the ability to make immediate window repair, while away from land, to keep water, wind and rain out of the boat.

Things You'll Need

  • Polyethylene sheet
  • Utility knife
  • Cyanoacrylate adhesive
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Instructions

    • 1

      Remove the boat window from its mount and lay it, outside surface up, on a table or other flat surface.

    • 2

      Cut a portion of clear polyethylene sheeting. Trim it to a size that overlaps the edges of the hole by 1/4 inch. Use the trimmed piece as a pattern and cut out a duplicate. Set the two identical pieces aside.

    • 3

      Apply a thin bead of cyanoacrylate adhesive around the edge of the hole. Exercise caution and keep your hands and fingers clear; the adhesive will bond to anything upon contact.

    • 4

      Place one of the clear polyethylene patches over the hole and use your thumb to hold it in place for about a minute.

    • 5

      Flip the window over; with the inside surface facing up. Repeat the procedure and install the duplicate patch.

    • 6

      Cut away any superfluous polyethylene from around the repair on both sides of the hole. Remount the window.