From: Paul@Houston.Texas   
      
   francis wrote:   
   > On Tue, 03 Dec 2024 04:13:47 +0000, francis wrote:   
   >   
   >> On Mon, 2 Dec 2024 17:43:46 -0600, Paul in Houston TX wrote:   
   >>   
   >>> francis wrote:   
   >>>> On Sun, 1 Dec 2024 21:29:28 -0600, Paul in Houston TX wrote:   
   >>>>   
   >>>>> francis wrote:   
   >>>>>> Hi there,   
   >>>>>>   
   >>>>>> Curious if anyone can recommend an epoxy/adhesive that will both   
   >>>>>> adhere to HDPE plastic and not dissolve in gasoline? A bit of   
   >>>>>> backstory..   
   >>>>>>   
   >>>>>> Shortly after purchasing a used car I planned to subject to winter   
   >>>>>> duty, the plastic gas tank wiggled itself loose and made contact   
   >>>>>> with the spinning driveshaft, wearing a nice elongated hole in the   
   >>>>>> tank. With no nearby replacement available, I went down the rabbit   
   >>>>>> hole of plastic welding HDPE tanks, and successfully closed that   
   >>>>>> hole. With this fix replacement tank straps were acquired, and the   
   >>>>>> risk of a shifting tank was abated. 20,000+ miles and a year later,   
   >>>>>> the plastic weld is letting go, and gas is leaking again.. I can   
   >>>>>> hardly be annoyed that the weld held on for as long as it did, but I   
   >>>>>> opted for a hopefully permanent fix this time.   
   >>>>>>   
   >>>>>> I picked up a replacement tank, but upon delivery, I found the tray   
   >>>>>> that the pump sits in had broken free from the tank itself. The   
   >>>>>> yellow tray seen in this picture: https://i.imgur.com/x9bCPWym.jpg   
   >>>>>>   
   >>>>>> It appears to have originally been glued in placed, judging by this   
   >>>>>> picture: https://i.imgur.com/luj0Z9Zm.jpg   
   >>>>>>   
   >>>>>> I really don't like the idea of this tray sloshing around in the   
   >>>>>> tank, potentially knocking off the pickup sock at the worst time, so   
   >>>>>> I'm looking for recommendations of adhesive that can stand to   
   >>>>>> survive being submerged in gasoline permanently. I've found a few   
   >>>>>> options, such as LOCTITE 1252795 and Seal-All, but figured I'd ask   
   >>>>>> to see if anyone recommends something else.   
   >>>>>>   
   >>>>>> What would you use to secure the tray in this situation?   
   >>>>>   
   >>>>> Not only will the glue need to withstand gasoline but also Ethanol   
   >>>>> and water.  About 50% of the gas stations in the USA use double wall   
   >>>>> FRP pipe and the pipe joints are epoxy glued with epoxy made for   
   >>>>> that. The other 50% use double wall HDPE but they are not glued.   
   >>>>> They are either hot welded or clamped.  I don't know of any glue that   
   >>>>> will adhere to HDPE.  BTW, the photos don't work.   
   >>>>   
   >>>> Interesting, I appreciate the info, and apologize for the   
   >>>> non-functioning pictures. Please see the updated links:   
   >>>>   
   >>>> https://imgur.com/x9bCPWy - Tray in question https://imgur.com/luj0Z9Z   
   >>>> - Leftovers in tank where the tray sat   
   >>>>   
   >>>> I'm finding similar difficulties with folks attempting to get anything   
   >>>> to adhere to HDPE as well. I might end up needing to source another   
   >>>> tank..   
   >>>   
   >>> I see...   
   >>> I manage fuel contractors every day.  I no longer have to be covered in   
   >>> gasoline or diesel, or breath the fumes.  Now I just manage... North   
   >>> America.  I don't know of a glue type stuff that can be constantly   
   >>> immersed in gasoline.  Even the fuel piping epoxy needs to be heated to   
   >>> ~150F / 65C for 30 minutes to fully cure.  You could try fuel resistant   
   >>> Permatex epoxy.  Rough up both the tank and tray first so the epoxy has   
   >>> something to grab onto.  That's the problem with HDPE... it is slick.   
   >>> Maybe there is enough "Leftovers" sticking to the tank and tray for the   
   >>> Permatex epoxy to stick to.   
   >   
   >>   
   >> Thank you, I really appreciate the information. I'll pick up some   
   >> Permatex locally tomorrow and give it a shot. Thank you again.   
   >   
   > Hi there,   
   >   
   > Much later than I intended, but I wanted to post an update to this post. I   
   > ended up sourcing another plastic fuel tank that had that tray still   
   > intact. I figured with this car being used during the winter months as a   
   > 'winter beater' I didn't want to leave an issue that could leave me   
   > stranded on the side of the road in less than ideal conditions. I   
   > appreciate the wisdom that was shared however!   
      
   Thank you for the update.   
   I agree with you on getting a replacement tank.   
      
   --- SoupGate-DOS v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)