Often times they will send you the repair material like the welding rod or scrap from other kayaks. you can also check with your local kayak shop to see if they have scrap pieces from other kayaks. You can use any tool that will melt the polyethylene, to make the needed repair, but harborfreight.com sells a 80 watt plastic welder, for $15.00. included is wire mesh to reinforce the crack, along with poly welding rods.... Once you determine that plastic welding is the necessary fix for a crack in your kayak, you'll need to determine if your particular kayak can be welded. plastic kayaks are made of polyethylene. however, not all polyethylene can be repaired..
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.. A damaged plastic canoe can be repaired. plastic that is cracked, punctured or badly dented can be difficult to repair. fortunately, modern plastics remember their shape, and if you apply heat with a hair dryer or a carefully applied torch to a fairly moderate dent, the hull should pop back into shape.. Step 1. this is a typical crack that you might find on the bottom of a kayak. the first thing you need to do in any plastic repair is to clean the plastic..
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