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Originally Posted by TexasJack
I've always heard regarding epoxy: "Always use the long curing time epoxy because it's stronger and more water resistant than the quick cures."
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That myth is gone! Take a look at Loctite 324 - stuff has a one minute work time. The advice is still appropriate as a rule of thumb. But it's not a be all-end all rule. Probably helps when comparing store brands. My E-120hp has a 2 hour work time (that's what the 120 means). It's the strongest epoxy they make. So the rule fits when comparing to similar epoxies in this particular line. Then I have U-05FL. That stuff is a whole different compound. It has a 5 minute worktime. It doesn't have the shear strength, but better water resistance.
The West Systems stuff I have has a 15 minute worktime, but I'll bet is stronger than 30 minute DEVCON.
Go figure.
Steve