Quote Originally Posted by glenn_duke View Post
When you insert the plug, there will be an extension of the plug protruding inside the tire. Since its soft rubber, grinding it will be difficult, thats why the crew will remove it using a long nose plier. In most instances all the plug will come out, some will be left behind.

I prefer to leave some part of the plug behind to cover whatever the patch plus tire pressure could not cover.

A puncture is a puncture, its a hole, removing the nail that caused the puncture will not heal the tire, there will still be a hole in there. Patches and plug do their job to keep the air inside your tire. Unless your tire is made of biodegradable rubber, you should not worry about air and water creeping in a tiny hole.
This morning it was my first time to see a plug in method. I thought it was a new method. Then this afternoon I read this:

Plug And Patch Or Replace Tire? Depends On The Puncture Location -

"The greatest potential danger caused by a plug repair is that this type of repair allows air and moisture to penetrate the body of the tire.

The tire industry maintains that air and moisture slowly seep in between the layers of the tire allowing the steel belts to degrade and causing the tire to deteriorate and corrode from within.

Over time, this corrosion weakens the steel belts and the bonds between the rubber-to-rubber layers and rubber-to-the-wire layers of the tire, greatly increasing the risk of a tread separation."

Then I read accidents in which there were thread separation in a tire and the car rolling over. Imagine something happening to cars in EDSA.

Does anyone know how many car accidents in the Philippines were cause by such tire tread separation (the tread separating from main body)?

For reference see too

Unsafe Tire Repair Methods Persist Despite Strong Evidence of Dangers

"In 1996, in Peterson V. Ress Enterprises, a Chicago jury awarded $12.65 million to the Plaintiff. Peterson was a college student who was rendered quadriplegic in an accident resulting from a tire failure. The Plaintiff contended that the accident tire was improperly repaired by the defendants using a plug-only repair five months before the crash. On appeal, the appellate court affirmed the judgment in favor of the Plaintiff. "

Has anyone heard of similar accidents in the country?