We help people repair plastic
Professional KC Welder
Part No.:KCWPRO
Weight: 1.35 LB
Length: 16.50 IN
Height: 2.75 IN
Width: 4.50 IN
UPC: 694687000868
Accepted Payments:
Visa, MC, American Express, Discover, PayPal
With the Kayak and Canoe, or "KC" Welder Pro, you can create permanent repairs to your cracked kayak or cracked canoe. This kayak repair kit / canoe repair kit comes with everything you need.
KC Welder Pro Kit Contents:
- One heavy duty 200 watt element with a long cord
- One flat welding tip that makes repairs easy
- 10 feet of plastic welding strips in the color you choose
- Stainless steel reinforcing mesh
Repair Your Kayak or Canoe
Using the KC Welder Pro, you can create permanent repairs to your cracked kayak or cracked canoe including...
- Pelican® Canoe Repair
- Coleman® Canoe Repair
- Old Town Canoe Repair
- Dagger Kayak Repair
- Nomad Kayak Repair
- Perception Kayak Repair
- Harmony Kayak Repair
- Anadyr Kayak Repair
- Hobie Kayak Repair
- Jackson Kayak Repair
- Wavesport Kayak Repair
- Mad River Kayak Repair
- Liquid Logic Kayak Repair
- Pyranha Kayak Repair
- Necky Kayak Repair
- Wind Rider Triamaran
- Escape Captiva
- Laser Pico
- Hobie Cat Club Wave
- Ocean Kayak
- Coleman Scanoe Repair Kit
- Malibu Kayak

This is NOT the time to wonder about your repair.
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.
How to Use the KC Welder Kayak Patch Kit
How to Repair a Kayak with an Airless Plastic Welder
Quit Making Temporary Repairs!
You may have tried to use different methods to repair your kayak or canoe using some creative techniqes. Techniques like...
- Liquid Nails (it peels off quickly)
- Glue Gun (Doesn't "burn in" well and quickly peels away)
- Rivet an aluminum plate and caulk the edge and hope that it holds. (Gets scraped off from the first rock you go over.)
- Sandwich a piece of rubber between an alumium plate and the kayak with rivets (or screws)
Those techniques you've tried must not have worked, or you wouldn't be looking at this page now. The KC Welder Pro allows you to make permanent repairs.
Step-by-step Instructions
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. Use soap and water to remove any water soluble contaminants. If there are any contaminants, like tar, grease, or sticker residue, that won't come off easily with soap and water, then use one of Polyvance's plastic cleaners.
Realign the plastic if is has overlapped itself.
Step 2
To maximize the strength of the repair, it helps to embed some wire mesh into the plastic. It is similar to putting rebar in concrete. Cut some of the included wire mesh to span the crack about an inch on side. On this particular repair, we had to fold the mesh because the crack was on a corner.
Step 3
Using the KC Welder, melt the wire mesh into the plastic. This is similar to putting rebar in concrete. It makes the repair a lot stronger. Sometimes, the mesh wants to "pop out" of the plastic before the plastic cools. If that happens, use a screwdriver or another tool to hold the mesh into the plastic until the plastic re-solidifies.
Step 4
Here is what it will look like once the mesh has been melted into the plastic.
Step 5
Apply the filler rod by pre-melting one side of the rod.
Step 6
Flip the filler rod over so that the melted side is toward the plastic that you are working on.
Step 7
Cut the tip of the rod off by melting through it with the edge of the welder tip.
Step 8
Spread the melted rod while pushing it through the mesh. You may need to apply an extra layer of rod after pushing it through the mesh. Get the plastic hot enough so that the new melted plastic melts together with the existing plastic.
Step 9
Continue applying plastic until the crack is repaired completely.
Finished
The repair is complete.
Cosmetic Restoration Video
Testimonials
Hello Polyvance,
I wanted to take this time to thank everyone at Polyvance for all that they do! I live near a beautiful pond and have not been able to fish certain areas due to the size. I came across a free canoe from a friend but it had some nice size holes on the bottom of it. I ran some Google searches and the promising research I discovered brought me to Polyvance. I emailed my concern to Polyvance and not only was the answer "YES we can fix that" but the response time was within hours. The customer service and product is top notch! I wish more companies conducted business the way Polyvance does. Thanks again for the great service! My free canoe has brought me joy and many great catches!
Top Recommendations,
Richie from Northern Virginia
Here is a temporary repair that one of our customers sent in....
"I have a rather humorous story about my vain attempt to repair a canoe...and some pictures from the mess I made trying to remove my latest patch job: tar backed aluminum roof flashing.
"We, for the past 3 years, have tried everything...yes everything conceivable in the form of adhesive, epoxy and tape to fix this old boat.
"Actually duct tape (our first attempt) worked the best of them all but due to the size of the hole we were covering it just wouldn't last.
"Epoxies won't stick, not even J.B. weld. And riveted patches always leak and snag on rocks.
"Last year, in a last ditch desperate attempt to get the thing in the creek again, I applied a layer of tar backed aluminum roof flashing to the keel.
"It worked for about 1 mile and then began to leak.
"Finally I contacted Coleman and asked their advice, so I am now ready to fix the thing right...well, not quite...I now have to remove the freaking tar!
"I got out my trusty grinder with a cup brush and slung the crap everywhere, before realizing it wasn't removing jack crud, just smearing it and slinging it all over my legs and patio cover. So I went and got some turpentine which is pretty useless on 1/8" thick tar.
"Finally I got out my Wagner Heat Gun and melted it and scraped it.
"These pictures are AFTER 2 hours of work. It looks like I have another couple hours left...But at least I know what to do now...
"Feel free to use this email and pictures on your website, and some complimentary orange filler rod would be nice too :)"
Paul Cunningham
Lawton, OK
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