Plastic repair GURUS since 1981
Plastic Kayak Patch Kit - Canoe Repair KC Welder
Polyvance's KC Welder allows you to create permanent repairs to your cracked kayak or cracked canoe. This kayak repair kit / canoe repair kit comes with everything you need.
The KC Welder lets the do-it-yourselfer patch a kayak crack with a kayak welding kit that uses kayak welding rods. The best part is that it is all contained in a plastic kayak patch kit that you can purchase online. This Kayak hole repair kit allows just about anyone to start patching a kayak hole.
Or course, you can replace the word "kayak" with the word "canoe" and do the same thing for your plastic canoe. Just watch:
Polyvance's KC Welder allows you to create permanent repairs to your cracked canoe. The KC Welder lets the do-it-yourselfer patch a canoe crack with a canoe welding kit that uses canoe welding rods. The best part is that it is all contained in a plastic canoe patch kit that you can purchase online. This canoe hole repair kit allows just about anyone to start patching a canoe hole.
The nose of this kayak has a crack several inches long. Watch us use the KCW Pro to repair this crack!
Always wear proper safety gear while working!
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LDPE or HDPE?
The difference between LDPE (low density polyethylene) and HDPE (high density polyethylene) is the length of the molecule chains. HDPE has longer molecular chains than LDPE and the melting temperature of HDPE is often higher than that of LDPE.
LDPE's lower melting temperature usually makes using it as filler rod easier-to-use than welding HDPE filler rod to HDPE plastics.
HDPE is also "tougher" and more abrasion resistant than LDPE, but the practical difference is minimal when doing repair work. If you need the best wear characteristics and can live with making slower, more difficult welds, use HDPE rod. In most cases, we see better quality welds when using LDPE rod for typical crack or hole repair on boat hulls and ATV plastics.
The KCWPRO kit contains:
Note: This is a list of the Polyvance products that can be used to make this repair. This list does not include sanders, grinders, or other common tools you will need. If you have any questions, please don't hesitate to call technical support at 800-633-3047.
This video will show how to use Polyvance's KC Welder to repair a cracked kayak.
Included with the KC Welder is some stainless steel reinforcing mesh. Cut the mesh to fit over the crack by about an inch all the way around. Melt the mesh into the plastic. Doing this is similar to putting rebar into concrete. Don't push too hard, though; this is a slow process. Allow time for the heat to soften the plastic before you push the mesh into the plastic. The mesh may want to pop out of the melted plastic, so use a screwdriver to hold the mesh under the plastic until it cools off and turns solid.
Apply the filler rod by pre-melting one side of the rod. Flip the filler rod over so that the melted side sticks to the kayak, and then cut off the tip of the rod with the edge of the welder tip and smear the rod around. Keep adding more material while the plastic is still hot. Continue adding new material until you are confident that it will be strong enough. While the plastic is still hot, contour the plastic by ironing down the soft plastic. Allow plenty of time for the plastic to cool completely.
The repair is complete and functional even though it doesn't look great. Now let's see what we can do to make it look better. If you have a DA sander, then shape the plastic with 80 grit sandpaper, and then get it smoother with 180 grit. You can get rid of that white look with a heat gun. Get a heat gun really hot and make some slow passes over the surface to flow out the plastic and get rid of the white look. It won't feel much smoother, but it will look a lot better.