High Density Polyethylene and Polypropylene Gas Tank Repair System (3" X 4") (A Patch with Economy Poly Kit)

Incredible. Unique product and 100% worth the cost. Used to repair 1/2” hole drilled near bottom of my truck’s 30 gal fuel tank. 5 weeks in, several fuel fills, some thermal cycling, and many road miles: zero issues. Avoided thousands in repair costs and extended down time (new tanks not available for this truck). If you can follow directions closely and work carefully, this is a great option. Details: This kit will work best (easiest) on a flat/near flat surface. This repair was in a “saddle” area (complex geometry) and I was barely able to work the patch to conform and maintain the 1” margin. I didn’t fully warm the area to be patched before applying the patch in an effort to gain a bit more open (working) time to shape the patch onto the curved surface. That helped. Also recommend a variety of plastic scapers or trim tools on hand to work the patch on better vs the throwaway tool included in the kit. The throwaway tool is prob fine for a fully accessible, flat surfaces. Pay attention to the prep and be meticulous. I used acetone to clean after prep before proceeding. Highly recommend having everything close at hand, especially if working under a vehicle—time is not your friend once you’re into the repair itself. note/ One of the chem dispensers in my kit leaked despite being shipped with extra sealing tape…barely had enough to complete my ~2”x2” patch. Good for me but check your kit before getting too far in.

Products work very well together but the worst thing is that when I've got it delivered my poly prep leaked mostly out. I just had enough to get the job done properly. The chemical bonds with the patch works 💯 perfect like it intended to do. I'm thankful to come across tech bonds polyethylene patch for fuel tanks, I have 26.1 gallon tank on my Tahoe and it fixed the problem with 💯 accuracy, I highly recommend this to everyone who needs a fuel tank fixed on their vehicle or any machinery.

Absolutely dissatisfied!! Followed the instructions to the tee. Patch looked good but the next day when filled with fuel, drip drip drip!!! Ripped the patch off and repaired it with DevCon epoxy. I have the patch and remaining product to send back for a re-fund. Please advise??

I will purchase this product again

I am a fan of this stuff - I suspect some of the other reviews may not be using it properly (applying heat) or preparing the surfaces thoroughly, it has worked fantastic for me. I originally ordered to repair a discontinued leak in an Audi fuel tank filler neck, that is made from HDPE. Doing my research that nothing else will work on this I used TechBond, and almost the entire content of the SI advesive with the patch and plussing, and my check engine light for EVAP leak has been gone for the last 2 years. I even painted over it and its better than factory. I ordered another kit to have on hand as I am in Canada and never know when I might need to repair something, sure enough our washer had a tear on the sealing gasket and leaked water on the floor. I warmed and prepped the area followed the instructions and its sealed back up and almost impossible to see with the eye - never leaked again and its stayed flexible unlike any kind of glue which would add material and dry to a hard inflexible state. Recently I went to fill a cup with ice on my Frigidaire fridge, and the ice maker paddle broke off, taking it apart the plastic housing broke at a steel hinge pin location. The fridge is from 2008 and the part is no longer available. I grabbed the last of my tech bond, and used this with careful surface prep and lots of clamping force to rebond the broken off mounting point, and plussed the area around for added strength. It setup rock solid and I was able to reassemble immediately, and its been working better than it ever has since. This stuff saved me $1500 for fuel filler neck and $2000 for a new fridge, there would be no way to fix these things like this and put them back into service immediately. I use super glue for things that aren't that important, but bond the things that can't be replaced. Read the instructions, and know what the material is that you are bonding, and do the surface prep, there is nothing else like it. The TechBond website I found difficult to use so I ordered more product to have on hand, it was easier to just reach out to them directly. Thanks

I don’t write product review often, but this product definitely deserves one. About 3 months ago something in the highway punctured my HDPE gas tank. I tried to patch it using JB and other epoxy products, just to have the leak appear back often 3-4 weeks later. Thanks God I found this kit. This product is not joke. The SI glue is thick and workable, but when it comes in contact with the activator/accelerator the reaction is instant. I followed the instructions and the patch to the gas tank came out perfect. Customer service is great. Had a question before hand, left my number and got a call literally a minute after. This product work perfect for me.

This had such promise but fell short for me. I was using this on a poly fuel tank but the hole in the tank was on a corner so getting the patch to lay flat and not have wrinkles was next to impossible. I think a nice flat area, it would work great but, because I couldn’t get it perfectly flat, I still had a leak.

I used this on a trucks plastic fuel tank. It works well!! However, it is not a quick fix. This requires methodical adherence to the instructions. That being said, the instructions are fairly thorough, but if your reading comprehension is weak, spend the extra time to read over it a few times and make sure you understand the steps. Videos from the company try, but could be better. Read over instructions thoroughly and watch the videos and take your time.