-- The Home Page of the Finishing Industry
23+ years of serious education, promoting Aloha,
& the most fun you can have in metal finishing smiley
    no popups, no spam
on this site
current topics
topic 12182

Repairing Punctured Polyethelyne

I own a high-density polyethylene (RAMX) canoe that has developed a hole about 1 inch by 2 inches. How can I repair this?

Keith Boehm
- Laguna Niguel, California

I'd "bolt on" some kind of patch piece and gasket. Sorry, but I haven't seen high density polyethylene successfully welded or glued.

Ted Mooney, Teds signature
Ted Mooney, P.E.
Pine Beach, New Jersey


Assuming and HOPING that you canoe is not made from an ultra high molecular Polyethylene (supposedly unweldable in the higher grade ranges), your best option is to take your canoe down to a thermoplastic fabricator (not a fiberglass fabricator!)and get them to weld on a patch. Mind you, the patch colour may be very different from your canoe colour ... either virgin white or Ford black!

There is no glue, no cement for hdPe.

Hope this helps.

freeman newton portrait
Freeman Newton
White Rock, British Columbia, Canada

(It is our sad duty to
advise that Freeman passed away
April 21, 2012. R.I.P. old friend).


The Coleman canoe owner's guide states three ways to repair the RAM-X. Write the company for instructions. I've had good results.

David Long
- Richmond, Virginia

June 29, 2008

My 81 Coleman 17' canoe uses tubular interior frame for keel support. A few years ago a small stone was lodged between the frame and the bottom of the canoe which pierced through the plastic keel when I scuffed a submerged rock through some rapids. I can tell you, with 500 lbs of gear, it didn't take long to notice the leak and start bailing.

After several unsuccessful attempts, I finally was able to repair the hole by using a Weller Soldering iron to heat the surface and drip melt sacrificial PEX-A tubing on the opening. After allowing to cool, I sanded lightly and applied sikaflex or dap roof and gutter sealant to the area. After allowing to dry for an hour, I reinforced with plain old nashua duct tape and applied another smooth coat of sealant over top. To this day, it has not leaked and the sealant has resisted damage from underneath.

Jim Weller
- Allentown, Pennsylvania
  ^-- this reader rates this thread: winner

January 7, 2010
-- this entry appended to this thread by editor in lieu of spawning a duplicative thread

I would just love someone tell me what to use to fill all the deep scratches on the bottom of my Coleman crawdad [the same as the canoe] that can be sanded or not and that will stay there? BIG NOTE FOR ALL IS SUPER MARINE IN THE STATES HAVE SUCH MATERIALS BUT I AM IN p.e.i. CANADA. THANKS DOUG


This public forum has 60,000 threads. If you have a question in mind which seems off topic to this thread, you might prefer to Search the Site

ADD a Comment to THIS thread START a NEW threadView CURRENT TOPICS

Disclaimer: It's not possible to diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations may be deliberately harmful.

  If you need a product/service, please check these Directories:

JobshopsCapital Equip. & Install'nChemicals & Consumables Consult'g, Train'g, SoftwareEnvironmental ComplianceTesting Svcs. & Devices

©1995-2018, Inc., Pine Beach, NJ   -   About   -  Privacy Policy
How Google uses data when you visit this site.