What Is A Tire Detread? What Causes Tire Tread Separation?

(Last Updated On: June 6, 2022)

A tread is a rubber on a tire’s outer diameter that makes contact with the road and gives traction. When the tread is removed from the tire’s casing or body, tire tread separation occurs. Most cars, trucks, vans, and SUVs use steel-belted tire tread technology on the streets today, which is the way the tread is fused to the steel tire casing. Since adhering rubber to steel is difficult, there is a risk of tire tread separation in all tires, particularly in hot weather or at high speeds. For several causes, including manufacturer’s faults, tire misuse, incorrect flat repair, underinflation, and excessive tire wear, the bond between the casing and the tread may be weakened and lead to tread separation.

When tread separation happens at high speeds, the driver might first hear a loud thump before the car loses control. When the tread breaks from the tire case, when it reaches or gets stuck in the vehicle’s undercarriage, it may cause friction or braking action. It will typically swerve in the opposite direction when the driver attempts to correct the car’s braking action.

Tread separation can result in catastrophic accidents and is difficult to predict in certain instances. However, vehicle owners should take steps to avoid tread separation, such as routine tire checkups and repairs, as well as safe driving, to prevent tread separation.

Prevalent Causes Of Tread Separation Include The Following:

Manufacturer’s Defect

One of the most common causes of separation of the tire tread is the manufacturer’s defect, where something went wrong in the tread and steel belting portion of the tire casing bonding process, and the tread did not adhere properly. Signs that your car’s tire has a tread bonding defect will also occur after buying and using the tire for a short period. You may feel an odd sensation while driving and a feeling that the car is imbalanced. A bump will form in the tire’s tread region has a tread defect, which will extend before the separation occurs. The driver should know that this is the first visual indication distinguishing the tread. By checking for bumps and feeling for any flaws or wavy patterns by rubbing their hands over the tread, the driver can inspect their tires. The driver should automatically change the tire when defects occur. The owner, passengers, and other drivers may be put at risk by driving on tires with defects.

To assess if their tires are at risk of tread separation, Consumer Reports advises that a driver should check for the following signs:

  • Cracking or cutting into the sidewall of the tire
  • Uneven wear on the tread
  • Bulges or sidewall blisters
  • Excessively worn tread, which happens when the minimum depth of 1/16 inch has been worn.
  • When moving, excessive vibration


Tire Abuse

Overinflation of the tire, or excessive tire pressure, may result in accelerated wear, overheating, and decreased ability to absorb road shocks. To protect your car’s tires and driving efficiency, be sure to inflate your tires to the required PSI level. You can use a tire pressure gauge at least once per month to check the PSI on all four tires and the spare tire. The pressure should be within the range that the automaker recommends. When the tires are cold or have not been driven more than one or two miles, the pressure check should be done.

Careless driving practices can also cause tire damage that can lead to the separation of tire treads. Potholes can cause especially hazardous tire tread conditions. Tires are designed to withstand large potholes at low speeds and higher speeds at small potholes. But it may produce enough force to cause a tread separation when a car drives over a big pothole at high or near-freeway rates.

Incorrect Flat Repair

A radial patch and plug procedure is the latest approach for fixing punctured tires. The plug portion’s tip will cause tread separation if the puncture is not adequately prepared before being repaired.


Driving on tires that are underinflated is a prevalent issue. Surveys have shown that there are under-inflated tires in about half of the cars on the lane. Since tires lose their air slowly through the rubber, drivers frequently continue to drive on them for a long time before noticing that their tires are underinflated. Changes in seasonal temperatures can also cause tire pressure to fall. Even tiny drops in PSI can impact the handling of a vehicle, making it harder to control. Underinflated tires can cause the tire’s sidewalls to flex too much and build up excessive heat, shortening the lifespan of the tires and leading to separation of the tread.

Excessive Wear Of Tires

Before needing to be replaced, tires are made to endure a certain number of miles. The tire becomes vulnerable to blowouts, tread separation, and traction loss after the mileage limits have been hit. For this reason, after their mileage limits have been reached, drivers can change their tires.

Causes Of Errors & Defects In Manufacturer Specification

Via several interventions, including sufficient adhesion, proper production methods, and adequate quality control measures, the tire industry can decrease the chances of tire defects.

Some of the processes the manufacturer can ignore or inappropriately conduct that, leading to the production of tires with defects, are as follows:

  • Improper curing
  • Healed on the tire by moisture or foreign matter
  • Improper Regulation of Quality
  • Factory or manufacturer’s focus on rapid production over product quality or protection



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