Plug patch or bubblegum what is the best method to repair a tire. I have put in hundreds of plugs over the years and this is the cheapest method and if the plug is self vulcanizing it is an OK repair.
Patching is another repair method the only problem is the hole is left open to the elements and that can cause problems.
The method I prefer is the patch plug, it is a patch with a plug that seals the hole, this is also the most expensive. It is by far the safest also. Patching is also difficult to do properly and takes some practice and experience.
If the tire has a hole in the sidewall it cannot be repaired and must be replaced.