What kind of glue should be used for tire scratches?
3 Answers
Tire scratches cannot be directly repaired with glue, as it won't hold. If the damage or crack is large, it's essential to replace the tire promptly, with safety being the top priority. During normal vehicle operation, the tire sidewall deforms to absorb minor road bumps, which means ordinary glue cannot be used for repairs. Here is additional information: Sidewall damage: Continuing to drive with a damaged sidewall poses a risk of tire blowout, compromising driving safety. As the tire rubs against the road while driving, friction generates heat, causing the gas inside the tire to expand due to thermal expansion and contraction. The scratched area of the sidewall becomes thinner and may not withstand the internal air pressure, leading to a blowout. Tire blowouts present significant hazards to vehicle safety.
I just encountered this situation the other day - a cut on the tire sidewall that had me really worried. Honestly, you can't use regular glue for tire damage! If it's a sidewall cut where the rubber layer is breached, you must replace the tire. That area is thin as paper, and glue simply can't handle the pressure. For tread surface scratches that haven't exposed the cord layer, you might get by temporarily, but it's just a stopgap measure. The 4S店 technician taught me to use specialized tire sealant for emergencies - that stuff is rubber-based and can provide temporary sealing when sprayed on. But after driving a few dozen kilometers, you must immediately find a tire repair shop. Never try to cut corners with DIY fixes - a blowout is no joke. After all, tires are life-saving equipment - when they need replacing, just replace them.
Over the years repairing cars, I've witnessed too many tragedies of people using 502 glue on tires! Tire damage falls into two categories: sidewall cracks mean immediate scrapping, while minor tread scratches can receive emergency treatment. I recommend specialized vulcanized rubber adhesive - just 20 yuan per tube at auto parts stores. Simple to use: clean the wound thoroughly, apply the glue like squeezing toothpaste to fill the gap, let it dry completely, then sand it smooth with sandpaper. However, this fix only lasts about six months before the rubber deteriorates and peels off. Tire sealant works better for pinhead-sized holes in the tread - just squeeze it into the valve stem for automatic sealing. Remember: neither method should ever be used on sidewalls unless you fancy creating highway fireworks.
