$24.95 – $149.95
PTFE Tech-Patches for repairing metal or plastic gas tanks.
PTFE patches have a Teflon (PTFE) strip bonded onto one side. PTFE has excellent resistance to gasoline and diesel fuels, even aromatic (high octane) formulations. You will bond the PTFE side of the patch onto the damaged gas tank. With the PTFE patch, any hole and crack in either plastic or metal gas tanks will be permanently sealed.
Choose the Tech-Bond Kit for the type of gas tank that you need to fix.
For plastic gas (poly) tanks and containers
Choose an Economy Poly Kit (Coverage – approx: 40 sq. in), a Poly Kit (Coverage – approx: 200 sq. in), or a Poly Plus Kit (Coverage – approx: 400 sq. in) for repairing plastic (poly) gas tanks or containers. Our patented Polymer Bonding Process will allow you to repair these otherwise unrepairable items.
For metal gas tanks and containers
Choose an Economy Kit (Coverage – approx: 40 sq. in), Starter Kit (Coverage – approx: 200 sq. in) or Starter Plus Kit (Coverage – approx: 400 sq. in).
Note: For a bond to form between a PTFE Tech-Patch and any metal substrate, pipe or tank, the metal surface must be abraded to either a “polished surface” or, with steel, a “near white” surface. Anything less in surface preparation will, over time; result in bond failure.
Making your Tech-Patch “Plus”.
In situations when extra protection against abrasion is needed, apply several coatings of our SI adhesive to the outside of your Tech-Patch. Examples of when you need to have a coating might include:
- Where the Tech-Patch will be subjected to unusual stress.
- If there is a strap holding the gas tank to the undercarriage.
- If you’re repairing a larger hole, the coatings will restrict the expansion of the patch.
- Once a patch and the surrounding area is coated, you can paint the area.
If you want to “Plus” your Tech-Patch, make sure you have enough of the SI adhesive. Step-by-step instructions for plussing your patch are included.
Note: After you “Plus” a patch, you can than paint the patch.
In this video we explain and show you why in addition to showing you how.
Interesting Case Study
Repairing a melted John Deere plastic gas tank – A case study that affirms how well PTFE Tech-Patches work.
In the recent past, John Deere had a problem with one of their models. In their design, John Deere placed their HDPE gas tank too close to the hydraulic system. Heat generated by the hydraulic system would often melt a section of the gas tank. We were contacted by a tractor owner that wanted to know if the he could repair the damaged area with a PTFE Tech-Patch. We said, “Absolutely”, so he purchased our PTFE Tech Patch kit.
After he raised the gas tank two inches, the owner easily applied the PTFE Tech-Patch onto the damaged area. Unfortunately, even with the added distance, the heat melted the patch. Gasoline was dripping through the patch, while the patch remained bonded to the poly tank. To understand we have to explain how our PTFE Tech-Patches work. PTFE patches are flexible. Teflon is not. PTFE patches are flexible because they are woven. That weave and excessive heat created the ideal conditions for failure.
The majority of the patch remained bonded to the HDPE tank. How? Tech-Bond SI adhesives are impervious to all types and grades of gasoline and diesel fuels. The heat exceeded the Patch design limit and melted the patch material. Fluorosilicone melts at 440 degrees F. Our SI adhesives normally melt at 280 degrees F. The question is how and why the PTFE remained bonded to the poly tank with an adhesive that normally fails at 280 degrees F?
Answer. The Process. Tech-Bond SI adhesives are monomers. Polymers like PTFE, like HDPE are a string of repeating monomers. The Tech-Bond Process creates a sustained chemical reaction where the monomer of the adhesive becomes part of the molecular structure between the Fluorosilicone and the PTFE. When that occurs, the monomer takes on the molecular characteristics of the bonded polys.
Final result: When our client put on a third patch accompanied by a heat shield, the patch worked. The patches, applied properly, simply work.
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Both the Polymer Bonding Process and Tech-Patches are new technologies. But our reviews confirm that both technologies are very effective. They simply work. Once you’re a customer, we would appreciate if you would leave a Google review. Link below. Thank you.
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Working with polyurethane, Tech-Bond developed the Polymer Bonding Process (Process) for bonding polymers in November of 2016. Recognition of the value in being able to bond polymers was immediate, so was the skepticism. Would the bond last? What polymers does the Process work on? Does the Process work to bond polymers to other materials? In the years since, we answered every question in the affirmative. With the Process you can bond any polymer to itself, to any other polymer and to almost any other material. The important fact is that bonds created by the Process are permanent. Everyone who has tried has had success in bonding polymers or fixing their broken plastic piece. Everyone! That is why we have not had to refund anyone under our money back guarantee. Fluorosilicone (FVMQ) has excellent resistance to standard fuels, but high octanes gasolines can impact fluorosilicone. In addition to being impervious to standard fuels, PTFE (Teflon) has excellent resistance to the additives, benzene, xylene, etc., that increase octane rating. For the PTFE patches, we developed a process that bonded Teflon tape to the fluorosilicone. The Process does a superb job of bonding the PTFE to HDPE (plastic) tanks. Almost the same core chemistry bonds the patches to metal gas tanks. We developed PTFE Tech-Patches for repairing gas tanks and they do a wonderful job. PTFE patches will also have a very high stress rating. We expect the psi to be exceed 240, so PTFE will be the patch of choice for large volume tanks and pipes under pressure. Stay tuned for the test results.
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2 1/2" x 3", 2 1/2" x 6", 2 1/2" x 9", 2 1/2" x 12", 4 1/2" x 3", 4 1/2" x 4", 4 1/2" x 6", 4 1/2" x 9", 4 1/2" x 12" "
No kit, Economy Kit for metal tank repair, Starter Kit for metal tank repair, Starter Plus Kit for metal tank repair, Economy Poly Kit for plastic and metal tank repair, Poly Kit for plastic and metal tank repair, Poly Plus Kit for plastic and metal tank repair