How long will Tech-Patches last?

Durability of Tech-Patches (patent pending) No one wants to spend money for a temporary fix to a permanent problem.  . This picture shows a Tech-Patch on a metal can.  In April of 2018, we drilled a hole in the tank and shot a video of covering the emptiness with a Tech-Patch.  After the 5-gallon pail … Continue reading How long will Tech-Patches last?