Can Tubeless Tires Only Be Filled with Sealant Once?
2 Answers
There are various methods for repairing tubeless tires, with the most convenient and quickest being the use of self-sealing fluid. Self-sealing fluid can quickly repair leakage points but has a certain degree of corrosiveness. Typically, it is only filled once and cannot be added again. Excessive use is not only ineffective but can also corrode the wheel rim. After using tire sealant, since the tire surface is more or less corroded, and a colloidal protective film formed on the tire surface can affect the grinding and adhesion during the tire repair process, the operation may be difficult, and there is also a risk of being unable to repair the tire. If the tire is damaged again and leaks, it is recommended to use more professional repair methods or replace it if necessary.
Actually, tubeless tires can be patched with sealant more than once. I've tried it several times myself. When I used to commute by car, my tires got punctured by nails twice, and both times I relied on tire sealant for a temporary fix. However, you have to be careful each time you apply the sealant—small holes can be patched, but anything larger than 5mm becomes difficult. Also, the quality of the sealant is crucial. Cheap products usually fail after one use, while better-quality sealant can last for two or three applications. But repeatedly applying sealant can cause clumps to form on the inner wall of the tire, making the steering wheel shake at high speeds. So now I always keep quick repair strips on hand, and within a week of applying sealant, I make sure to visit a tire shop for a professional repair. After all, safety is the top priority.
