Car knowledge How much do you know about car tire repair?

Daily car knowledge: How much do you know about car tire repairs?

We all know that car tires are just like people’s shoes. If it is too much, it will inevitably be punctured. I think friends who drive frequently must have encountered the situation where the tires of their cars are punctured. Due to the different tire repair methods now, its prices are generally different. I hope everyone knows at least some knowledge about tire repair.

The more mainstream tire repair methods currently on the market include patch tire repair, mushroom nails and hot patching. Today we mainly introduce two types of tire repair: patch tire repair and mushroom patch tire repair.

First of all, patch tire repair is a common tire repair method on the market, because its price is relatively low and its cost performance is relatively high. Therefore, many car owners now regard it as their first choice when repairing tires. It is also called internal repair. The method of repairing the tire is similar to the method of repairing the tire on a bicycle. First, we need to remove the tire from the steel rim, and then find the damaged or punctured position from inside the tire. After finding the damaged location, polish it inside, clean up the damaged debris, apply glue after cleaning, and finally put on the tire patch. If you pay enough, some stores will also provide tire patches. Heating, heating can make the glue fuse together better. This method can only repair the wound within 4.2 mm, which is equivalent to half the size of our fingernail. If it exceeds, I suggest you not to repair it and replace the tire. It will be safer. This method is also safer after repairing it.

The second method is to repair the tire with mushroom nails. Mushroom nails are actually an upgrade to patch tire repairs. Because they look similar to mushrooms, many people call them mushroom nails, but the price is a little higher than ordinary patches. Because the patch tire repair only makes up for an airtight layer inside the tire, it does not do any treatment for the wounds on the outside of the tire, so there is a problem that rainwater and dust will directly come into contact with the patch. Mushroom nails make up for this shortcoming of patches. This method is similar to hot patching. Its middle rod-shaped position will pass through the damaged hole in the tire. Because the middle rod is also made of rubber, it can be directly inserted from the inside of the tire. The stalk-shaped top has the same shape as a mushroom umbrella and will directly pass through the hole in the tire. Seal the tire damage. This method is currently the most reliable way to repair a tire, and it is also the one I personally recommend the most. But this method also has shortcomings. For example, if our tires are not punctured by screws or nails, the wounds punctured by nails on the tires are relatively regular and round, and the wounds are irregular and elongated. That way, it would be better to use internal supplementation.

Can all tire damage be repaired? Of course not. It is not recommended to repair some damaged tires. For example, if the damage is on the side, or if the damage is relatively large on the front, I still recommend replacing it with new tires. After all, safety is the most important thing.

After talking about the method of tire repair, let’s talk about another key to tire repair: adhesive. To put it bluntly, it is glue. Usually adhesives include ordinary adhesives and normal temperature vulcanizing agents. As we all know, car tires are vulcanized through deep coke and high temperature, so the vulcanizing agent can increase the strength of the rubber and improve the sensitivity of the rubber to temperature. Although ordinary adhesives can ensure that the patch adheres to the inner liner of the tire in a short period of time, its durability and resistance to high temperatures are relatively poor. The normal temperature vulcanizing agent can not only bond well with the tire, but also maximize the vulcanization fusion between the patch and the tire, thus integrating the tire and patch well. Therefore, when repairing tires, I recommend using room temperature vulcanizing agent. In layman's terms, using ordinary adhesives is actually a physical connection, which is what we often call cold patching. They rely on the viscosity of the glue. Over time, or if it is exposed to low or high temperatures or water, the patch will easily fall off. And when we use normal temperature vulcanizing agents, they undergo a chemical reaction, which can make the tire and patch more closely combined, with better durability and no falling off.

Finally, how many times can our tires be repaired? As for how many times a tire can be refilled, I think this is a question that everyone wants to know. To sum up, the number of tire repairs varies from brand to brand. Some brands stipulate that the tire can only be patched once. If you patch it twice, you will not be able to enjoy the warranty. Of course, some brands can repair the tire twice, but they will require that the distance between the first tire repair and the second tire repair cannot be too close. There are also some brands that support 3 or 4 refills, but their requirements will be more stringent. For example, they will require you to refill one at 12 o'clock, then one at 4 o'clock, and then one at 8 o'clock. Make another one like this. But when we are driving outside, we have no control over where the tires are punctured. There is no way to predict it. According to its requirements, the location where the tires are punctured is very, very difficult to encounter. Of course, for some brands, your tires will not be covered by the warranty as long as they are repaired once. Therefore, I particularly recommend that our general family car tires be repaired two times. After the third time, they will be very, very, very extreme. Not only will it cost It’s a lot of money but it’s not safe enough, so I think it’s safer to replace the tires.

Finally, what I said must be remembered. After the tire is repaired, the dynamic balance must be done again, the dynamic balance must be done again, the dynamic balance must be done again!