I've had some success with the little pressurised tyre sealants that you apply after a puncture. They pump the tyre up as well, though not that hard. It was a life saver in the middle of Epping forest on a cold rainy day. I discard the tube afterwards, but I don't know if that is necessary. Marathon Plus tyres are the solution though. Especially for a heavy rider like me.
I've had some success with the little pressurised tyre sealants that you apply after a puncture. They pump the tyre up as well, though not that hard. It was a life saver in the middle of Epping forest on a cold rainy day. I discard the tube afterwards, but I don't know if that is necessary. Marathon Plus tyres are the solution though. Especially for a heavy rider like me.