While being very conscious about our vehicle and its functionalities, we often overlook what condition of our car tire is actually in. Though a passing glance may satisfy you temporarily but this is not enough since the tires are the only part of your vehicle in direct contact with the road. In fact, not having a thorough glance over the tires can leave the dry rot unnoticed. For sake of safety, it’s imperative to be very conscious about your car tire health. Dry rot can be a cause of many tire problems and can even result in tire blowout.
What is Tire Dry Rot?
Dry rot is also known as the sidewall cracking. These are specifically the hairline cracks that occur along the sidewalls and tread. You can easily identify the dry rot with the color of the tire rubber. Often, the rubber along these cracks turn from black to dull gray. In case you find your car tires suffering from such thing, you must take your vehicle to the dealership. Right there, you will get it confirmed from the technician whether your car tires have dry rot or not.
Perhaps that’s the reason as to why experts suggest you to be highly conscious about the quality of tires while buying other than being more focused towards car Tyre price. If you are able to see the metal or fabric through cracks in your tires, the dry rot could be severe then and you must not drive having your car wearing those tires.
Why the Dry Rot is So Dangerous?
Dry rot can be a great cause of tires losing enough amount of air pressure quickly. Don’t wait for the warnings or some sort of signs as these small cracks open suddenly and with no warning, and mostly cause the tires to blowout. People who look for the low car tyre price must know that the Sidewall cracks can cause a rip in the sidewall. Often, these rips separate the tire from the rim that’s quite dangerous especially when it happen when you are driving. Such failure might occur at the worst possible time especially when you drive fast on a rough road.
How to prevent it from Occurring?
Although it turns up quite inconvenient for the driver but it’s a very common problem affecting tires of different sizes. In addition, it causes fungus in the rubber that weakens it even more. But with these two ways, you can prevent the dry rot in your tires;
Avoid UV Exposure
While a regular amount of sun exposure doesn’t result in any sort of damage to your tires but the excessive exposure to UV radiations will lead to the dry rot in car tires. Therefore, just make sure that you don’t let your Falken tires more exposed to the sunlight. To minimize damage:
Park in the Shade – Whenever possible, park your vehicle in a garage or under a carport.
Use Tire Covers – If parking in direct sunlight is unavoidable, use UV-resistant tire covers.
Rotate Tires Regularly – Moving tires to different positions helps distribute wear and reduce prolonged UV exposure on one side.
Apply Tire Protector
Commercial tire protectors are simply a great way to strengthen up your tires. All you have to do is just apply the commercial tire protector monthly so that this compound will shield your tires form dry rot often caused by UV rays.
Choose a Quality Protector – Look for silicone or water-based protectants that don’t contain harmful petroleum distillates.
Apply Regularly – Reapply every few weeks or after washing your tires to maintain protection.
Clean Tires First – Remove dirt and grime before applying the protector for better adhesion.
Causes of Dry Rot in Tires
Tires are a critical component of any automobile, ensuring safety, performance, and fuel efficiency. However, over time, they can develop dry rot—a condition where the rubber deteriorates, leading to cracks, brittleness, and structural weakness. Dry rot is not only unsightly but also dangerous, as it compromises the tire’s integrity and increases the risk of blowouts. Understanding the causes of dry rot can help vehicle owners take preventive measures to extend tire lifespan and maintain safety.
1. Exposure to UV Rays
Ultraviolet (UV) radiation from sunlight is one of the primary causes of dry rot in tires. The rubber compounds in tires contain polymers that break down when exposed to prolonged UV light. This process, known as photo-oxidation, degrades the elasticity and strength of the rubber, leading to surface cracks and brittleness.
Tires left in direct sunlight for extended periods—such as those on parked vehicles or stored outdoors—are particularly vulnerable. The sidewalls, which contain anti-ozonants and other protective chemicals, can still degrade if exposed to intense sunlight over time. Using tire covers or parking in shaded areas can mitigate UV damage.
2. Ozone Exposure
Ozone, a reactive gas present in the atmosphere, accelerates rubber degradation. While ozone is essential in the upper atmosphere for blocking harmful UV rays, at ground level, it reacts with tire rubber, causing it to crack and weaken. This is especially problematic in urban areas with high pollution levels, where ozone concentrations are elevated.
Ozone cracks typically appear as small, hairline fractures perpendicular to the direction of the rubber’s stress. Over time, these cracks deepen, leading to significant structural damage. Storing tires in airtight containers or using ozone-resistant tire protectants can help reduce this risk.
3. Temperature Extremes
Tires exposed to extreme heat or cold are more prone to dry rot. High temperatures accelerate the breakdown of rubber compounds, while freezing conditions make the material brittle. Repeated temperature fluctuations cause the rubber to expand and contract, leading to micro-cracks that worsen over time.
In hot climates, tires absorb heat, which speeds up oxidation—a chemical reaction that weakens rubber. Conversely, in cold regions, rubber loses flexibility, making it more susceptible to cracking under stress. Proper storage in climate-controlled environments can help minimize temperature-related damage.
4. Lack of Use
Tires that remain stationary for long periods are at higher risk of dry rot. When a vehicle is unused, the weight of the car presses down on the same spot of the tire, causing flat spots and uneven stress distribution. Additionally, lack of movement prevents the natural flexing of the rubber, which helps distribute oils and preservatives within the tire.
Parking a vehicle for months without rotation or inflation checks can lead to premature aging. To prevent this, tires should be rotated periodically, and vehicles stored for extended periods should be placed on jack stands to relieve pressure.
5. Age
Even with minimal use, tires degrade over time due to natural aging. Manufacturers typically recommend replacing tires every six to ten years, regardless of tread depth, because the rubber compounds deteriorate with age. The antioxidants and plasticizers that keep rubber flexible evaporate or break down, leading to hardening and cracking.
Tire age can be determined by checking the DOT (Department of Transportation) code on the sidewall, which includes the manufacturing date. Regular inspections for signs of aging, such as surface cracks or sidewall damage, are essential for safety.
6. Improper Storage
How tires are stored significantly impacts their longevity. Tires stacked horizontally, exposed to moisture, or kept in poorly ventilated areas are more likely to develop dry rot. Storing tires near electric motors or generators can also expose them to ozone emissions, accelerating degradation.
Best practices for tire storage include: – Keeping tires in a cool, dry, and dark environment. – Storing them vertically if possible to prevent deformation. – Placing them in airtight bags to minimize exposure to air and ozone.
7. Chemical Exposure
Tires can deteriorate when exposed to harsh chemicals, including petroleum-based products, solvents, and certain cleaning agents. These substances strip away the protective waxes and oils in the rubber, leaving it vulnerable to cracking.
Using inappropriate tire dressings or parking on oil-stained surfaces can contribute to chemical damage. It’s best to clean tires with mild soap and water and avoid silicone-based dressings that may contain harmful additives.
Conclusion
Dry rot is a common yet preventable issue that affects tire durability and safety. By understanding its causes and implementing proper storage, maintenance, and inspection routines, drivers can significantly reduce the risk of tire failure. Regular care ensures tires remain in optimal condition, providing reliable performance and safety on the road. Always prioritize tire health to avoid accidents and costly replacements.