Pakayak kayaks are made of strong thick plastic, but gouges can occur. In the event that you get a gouge or pin hole in your Pakayak kayak, here's how to repair it using the plastic from your boat. With a utility knife, cut a thin piece of plastic (no more than 1/8" thick) from one of the flanges. Next, using a soldering iron, melt the piece of plastic into the area that needs repair, shaping it to the kayak as you go. This particular video shows how to reduce the size of a hole that was double drilled leaving it too large.