In terms of tire repair effect, hot patch is better than cold patch. Since hot repaired tires generally do not repeatedly leak air, cold repaired tires may deflate over an extended period of time. From a tire perspective, cold tire repair is better than hot tire repair. Since the cold patch will not damage the tire, it will only stick the grant film on the wound and the hot patch will destroy the tire structure.
The difference between fire repair and cold repair is that fire repair requires a baking machine to bake the crack until the film melts and can be glued to the crack. Therefore, the advantage of fire repaired tires is that the repaired area is very durable and generally does not leak air repeatedly.
However, its flaws are also obviouss. Fire repair requires formal equipment, and the technical requirements of the master are relatively high, so calculating the tire vulcanization time requires professional experience. If the high temperature curing time is too long, it will result in excess sulfur, brittle tread and blue surface. If the time is too short, it will cause sulfur deficiency and the repaired area will fall off easily. Tires on passenger cars are particularly thinner than those on large trucks. If the tire is not heated properly and the temperature is too high, the tire may be damaged.
In addition, the life of tires after fire repair is short, because fire repair of tires will affect the reduction of tire quality, most of which last about six month. Therefore, the tire repair method in case of fire should be used with caution.e. Currently, the most commonly used tire repair methods include mushroom tire patching and cold tire patching, with different applicable scopes. Mushroom nail repair is suitable for larger breaks, while cold repair is suitable for shallower, smaller breaks.