There are 3 methods that most repair shops
use when repairing tires. Only one of those methods is correct when doing tire repairs.
First, there is the interior liner patch.
It keeps the air in but does not stop the moisture from getting through the hole.
Moisture is the enemy.
Then there's the very popular tire plug.
It stops moisture from getting through the hole,
but does not fix the inner liner.
Finally, you have the interior patch plug combo.
This seals the hole AND repairs the inner liner.
At InTire Mobile,
the combo patch is highly recommended.
All tires should be removed from the rim to determine if the tire should be repaired.
You cannot properly repair a tire without examining the interior of the tire.