My advise is tyre slime/sealant is shite, i got a puncture on the mayday run, tryed the sealant and it worked for 15 mins them just popped out and wouldnt seal anymore, lukily a mate had a much better kit. 11 years old, you stab the tyre making the whole bigger, apply special glue the the bung push the sticky rubber bung through wait half hour and use the C02 cans to re-inflate your tyre.
it got me home and i finished the rideout, my mate said one lasted the life of his tyre.