The Tech Patch Repair System (TPRS™) is a fuel-proof, leak proof repair system that eliminates leaks without welding, tank removal (as long as you can access the damaged area), or temporary fixes.
Costs have soared for replacing a damaged gas tank. That is, if you even can find a replacement tank. TPRS™ does repair both plastic, usually HDPE, and metal gas tanks.
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Adhesives and epoxies become brittle in fuel environments
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Rigid patches crack as tanks expand and contract
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Welding introduces heat risk and distortion
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TPRS™ solves these issues by creating a flexible, permanent bond that moves with the tank.
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Works on plastic and metal gas tanks
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Fuel, vapor, and moisture proof
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Repair remains flexible through thermal cycling
Ideally, gas tanks, especially metal gas tanks, should be fully drained, cleaned, and free of vapors before repair. Always follow fuel safety procedures and work in a well-ventilated area. With plastic gas tanks, as long as the tank is not actively leaking, no drip whatsoever, the patch can be applied to an accessable area.
If heat was the cause of the tank failure, you are going to have to put a heat shield in place before applying the patch. If there was enough heat to melt the plastic, that heat is going to melt our Bonding Agent. If you want someone to apply the patch and there is a NARSA (radiator) shop in your area, we can work with the that shop so that they can make the repair.
Why Gas Tank Repairs Fail
Why Most Gas Tank Repairs Don’t Last
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Adhesives and epoxies become brittle in fuel environment. if you have a plastic gas tank, most epoxy manufacturers recommend not using their product to repair a plastic gas tank.
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Rigid patches crack as tanks expand and contract
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Welding introduces heat risk and distortion
TPRS™ solves these issues by cross-linking the patch to the tank. Cross-linking allows the repair to expand and contract as the temperature changes, which is critical.
If the vehicle uses high-test (premium) gasoline and you have a 1 inch hole in the tank.
Additives added to gasoline to increase the octane level are quite invasive. If you have a 1 inch diameter hole or larger, you are going to need to apply a sealing patch on top of the initial patch. Patches work because of the chemical reaction generated by our patented Polymer Bonding Process. This reaction cross-links the patch to the tank. Larger holes prevent that cross-linking to occur. With a hole, there is no second surface to cross-link to. Two layers of patch provides the necessary two layers. Make sure the top patch is larger than the first patch.
For the first patch, you want the patch to extend at least on inch, on all sides, beyond the edge of the hole. Why this works. Cross-linking integrates the layers (moleculare integraton) which eliminates the pathways the gas uses to escape. Please call 877 565 7225.
Plastic Gas Tank Repair
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HDPE, polyethylene, nylon (outside USA), molded plastic
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Requires Poly Prep
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Most common for automotive & equipment tanks
The Steps involved in applying the patch.
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Surface conditioning
A. Abrade the tank surface to below the sheen
B. Clean the surface of all residue, grease, etc.
C. Saturate the surface (make it wet) with Poly Prep. Let dry
D. Spray a light mist of the Catalyst (Activator/Accelerator). Let dry.. -
Apply bonding agent onto the Tech Patch in small concentric circles
Can use a checkerboard pattern for larger surfaces. -
Pick-up patch, align, and press the patch onto the tank. Press down teh edges.
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Use a glue squeegee and squeeze every excess drop out from between the tank surface and the patch.
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Warm the patch with a heat gun or hair dryer to about 117 – 120° F (47 – 49° C). AT that point the exothermic chemical reaction will be initiated increasing the temperature to about 135° F (~ 57° C). When it get to the 117 – 129 range, which by touch is very warm. stop heating. You must sSTOP warming the patch at this time, otherwise you may fry the glue.
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Run beads of the Bonding Agent on top of the patch and around the perimeter of the patch.
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Spread with adhesive with the glue squeegee,
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Repeat 6 and 7 twice. These layers of Bonding Agent provides a polymer shield.
Metal Gas Tank Repair (Steel & Aluminum)
Key Differences
Metal gas tank repairs rely on mechanical adhesion and chemical surface conditioning.
Poly Prep is only used on polymer surfaces.
The Steps involved in applying the patch to a metal gas tank.
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Surface conditioning
A. Abrade the tank surface to below the sheen
B. Clean the surface of all residue, grease, etc.
C. Spray a light mist of the Catalyst (Activator/Accelerator). Let dry.. -
Apply bonding agent onto the Tech Patch in small concentric circles
Can use a checkerboard pattern for larger surfaces. -
Pick-up patch, align, and press the patch onto the tank. Press down teh edges.
-
Use a glue squeegee and squeeze every excess drop out from between the tank surface and the patch.
-
Warm the patch with a heat gun or hair dryer to about 117 – 120° F (47 – 49° C). AT that point the exothermic chemical reaction will be initiated increasing the temperature to about 135° F (~ 57° C). When it get to the 117 – 129 range, which by touch is very warm. stop heating. You must sSTOP warming the patch at this time, otherwise you may fry the glue.
-
Run beads of the Bonding Agent on top of the patch and around the perimeter of the patch.
-
Spread with adhesive with the glue squeegee,
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Repeat 6 and 7 twice. These layers of Bonding Agent provides a polymer shield.