I tried other JB weld epoxies: the Kwik weld with syringes and the 2 tubes of high strength with 3960 PSI and neither would hold the heavy mailbox on the post. This high strength with 5020 PSI was the only one that worked. In the past month it has withstood the mail carrier stuffing mail in it, thunderstorms with strong wind and rain, and the hot, summer sun (I live in Tampa). Highly recommend!!!
Rating: [5 of 5 Stars!]