I 100% with Paul's comments below. By the way, it will likely take more
plastic welding rods than you think. In a pinch I cut up some Tupperware type
lids that were labeled LDPE and they sufficed when I ran short. That said, not
all LDPE is the same, and HDPE will definitely NOT work for welding LDPE.Hoping
you find this helpful, Bruce Sent from Samsung tablet.
-------- Original message --------
From: Dreuge via CnC-List <cnc-list@cnc-list.com>
Date: 9/7/2019 5:32 PM (GMT-05:00)
To: cnc-list@cnc-list.com
Cc: Dreuge <dre...@gmail.com>
Subject: Stus-List Water Tank Woes [again] - Welding Question
Hi Pete,Plastic welding is the way to go. I tried various ways to repair
tanks, but my welded repairs (I fixed 3 tanks now by welding) have had no
problems. Plastic welding is rather easy to do. The key is getting good
plastic welding rods. I normally use a hot air welder, but if you are very
careful, you can use make due with a propane torch. Though I highly recommend
borrowing or buying a welder. Harbor Freight sells a reasonable welder for
about $60, and since they always have 20-25% off coupons, it would cost about
$45.Small leaks are easy to fix. If you have a more serious repair, like a
long crack due to poor structural support, then repair and split it with some
316 stainless mesh. I purchased a package of 1/8" LDPE welding rods from
Grainger. As I recall, it was 50 rods for $15. I also purchased 316 mesh from
Grainger.I have details on my blog. Below is the link. Skip down to the
section on plastic
welding.http://svjohannarose.blogspot.com/search/label/WaterTankRepair-Paul
E.1981 C&C Landfall 38 S/V Johanna RoseFort Walton Beach,
FLhttp://svjohannarose.blogspot.com/
On Sep 7, 2019, at 12:00 PM, cnc-list-requ...@cnc-list.com wrote:Message:
2Date: Fri, 6 Sep 2019 22:31:13 +0000From: kelly petew <kellype...@msn.com>To:
"cnc-list@cnc-list.com" <cnc-list@cnc-list.com>Subject: Stus-List Water Tank
Woes [again] - Welding QuestionMessage-ID:
<bn6pr07mb350617d6994a117c6619a6fdc1...@bn6pr07mb3506.namprd07.prod.outlook.com>
Content-Type: text/plain; charset="us-ascii"My water tank is leaking
again. I want to attempt a weld to repair it.It is a Kracor polypropylene tank,
but the labeling details have faded over time, and no longer legible. I don't
know what kind of polypropylene was used to construct the tank.So, the question
is, do I use hi-density OR lo-density polypropylene? Or, does it
matter?Thanks!Pete W.Siren SongC&C 30-2Deltaville, Va._______________________________________________
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