This video shows how to repair cracks in plastic kayaks using either extra plastic or a repair compound.. Intro: how to fix a plastic kayak or canoe this is an instructable describing a really easy and cheap way of effectively repairing cracks in your kayak or canoe, using nothing more than a drill, cloth tape and a hair dryer.. This is true of polyethylene because it is a linear plastic (i.e. not crosslinked). if you have a kayak that is thermoformed out of a plastic like abs (which is crosslinked), then it requires a totally different repair procedure, and melting it together won't work..
/about/Kayaks-56a6dbff5f9b58b7d0e52269.jpg "EWI Laser Plastic Welding - YouTube")
The qualities that make plastic perfect for making kayaks out of are the same properties that make it extremely difficult to repair. while repairing plastic kayaks may not be easy, it certainly isn't impossible either. here's a guide to determine how to repair and even plastic weld your kayak.. The material that goes into making most plastic kayaks and canoes is called high density polyethylene or hdpe. the same chemical properties that contributed towards the making of a kayak prevent it from bonding with other material, making hdpe a really difficult material to repair.. The main issue with repairing plastic hulls is that is that most adhesives don't bond very well to the plastic. for temporary repairs duct tape is the way to go. its quite adhesive and waterproof. if the hole is too big use the duct tape to secure something else waterproof (e.g plyboard or plastic) in place. if possible try and do both inside.
