My experience with Slime Tubes is that they did very little to seal punctures but once in a while they worked. Trying to patch a leaking Slime filled tube on the road was nearly impossible as well as the slime prevented any vulcanizing fluid from bonding properly. Could be done at home with some good cleaning and careful handling of the tube to prevent the Slime from coming out but can be done. Using old tubes as tire protection seems to have only minor success as well and dedicated plastic tire strips are a little better. The best way to prevent flats is to have a good tire with a thick carcass and some puncture resistant belts molded into the tire. This of course can make a heavier and less supple ride if that matters but at least you keep rolling.
Last edited by Crankycrank; 08-05-22 at 07:04 PM.