Nah, pressure in coolant is highish when hot and pipe splits can be a pain,
Which pipe is it and where is leak? If it's where jubilee had dug in then just trim a tiny bit off and re-jubilee and pop in new coolant (lots of guides on here on how to do coolant change). If in middle of pipe then try and get a replacement (even s\h of a breaker, rgwm on here and think there is another guy if you look).
K seal can handle a small leak in rad sometimes but always comes back, however as engine moves a little pipes flex and it will always re-open..