Hi Bruce, The tanks were built by Kracor Inc. and are made of Linear Polyethylene.
https://www.kracor.com/pages/marinecatalog.html *5625 West Clinton AvenueMilwaukee, Wisconsin 53223(414) 355-6335Fax (414) 355-8782E-Mail i...@kracor.com <i...@kracor.com>* I don't have any information about plastic welding, sorry. I can tell you TAP Poly-Weld Adhesive will stick to the tanks if you follow the instructions precisely, especial the part about flame pre-treating the repair area on the tank with a propane torch first. Watch the video. This is useful for the access ports if they start to leak. It probably won't help you with a crack though. Product: https://www.tapplastics.com/product/repair_products/ adhesives_glues_sealants/tap_poly_weld_adhesive/435 Video: https://www.youtube.com/watch?v=h-9yhanz5DE Ken Heaton & Anne Tobin S/V Salazar - Can 54955 C&C 37/40 XL - Hull # 67 Cape Breton Island, Nova Scotia On 31 July 2017 at 10:16, Bruce Whitmore via CnC-List <cnc-list@cnc-list.com > wrote: > Hello all, > > We have a 1994 C&C 37/40+. The starboard water tank is leaking through a > crack in an upper corner of the tank. The P.O. tried to seal the crack > with a combination of silicone sealer reinforced with a piece of fiberglass > cloth. Obviously, that repair didn't hold. Thankfully, the tank was very > easy to remove! > > I understand that welding plastic is pretty easy, and I've looked a video > or two, most of which show a tool that blows hot air, though a cheap > version at Harbor Freight looks more like a soldering kit, though I'm not > sure its the correct tool for the type of plastic used in making the water > tanks. > > So, a couple quick questions: > > 1). What type of plastic are the tanks made of? > 2). What is the correct tool for welding them? > > Any hints or tips of course would be greatly appreciated! > > Bruce Whitmore > > (847) 404-5092 (mobile) > bwhitm...@sbcglobal.net > > _______________________________________________ > > This list is supported by the generous donations of our members. If you > wish to make a contribution to offset our costs, please go to: > https://www.paypal.me/stumurray > > All Contributions are greatly appreciated! > >
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