What is a Proper Tire Repair?
Many countries throughout the world have published standards or recommendations for proper tire repairing. To ensure a proper tire repair:
Your tire should always be demounted from the wheel and inspected for damage or unsafe conditions, which might make the tire non-repairable.
The tire should then be repaired by removing the object that caused the damage, then drilling out the injury to remove all damage to the tire.
Based on the size of the injury, your tire repair specialist will then determine how the tire should be repaired. Typically, a "nail hole" injury is any injury 1/4" (6mm) or smaller in passenger tires. Injuries larger than 1/4" (6mm) are considered to be "section repairs" on passenger tires. Injuries larger than 3/8" (9mm) are considered section repairs on light truck and truck tires.
A proper tire repair procedure uses a vulcanizing rubber stem to fill the tire injury and the proper sized tire repair patch to reinforce the inner liner of the tire.