Forgot to add, if you compare the strength of the fast set to the slow cure you'll see it isn't as strong, but still pretty impressive! KwikWeld Twin Tube | J-B Weld
I have heard the rule of thumb is any quick setting glues of epoxy just are not as strong and slow cure, I know from personal experience, if you try to add more hardener to speed up the process it does the same thing. Try pushing your thumbnail into the slow cure and compare it to the fast set and you'll understand.
I have heard the rule of thumb is any quick setting glues of epoxy just are not as strong and slow cure, I know from personal experience, if you try to add more hardener to speed up the process it does the same thing. Try pushing your thumbnail into the slow cure and compare it to the fast set and you'll understand.