
Car tire repair fluid is used as follows: 1. Shake the repair fluid well; 2. Lift the outer tube, align the tube opening with the tire valve and tighten it; 3. Tear off the fixing ring on the top of the bottle and turn on the switch; 4. The repair fluid will start to inject into the tire. After inflation, close the valve by turning it counterclockwise. The working principle of car tire repair fluid is: When the repair fluid is injected, the centrifugal force generated by the car's movement will spread the fluid inside the tire, forming a sealing film that helps repair the tire. Note that car tire repair fluid can only repair small punctures with a diameter of less than 6mm.

Once on the highway, I noticed a flat tire and quickly pulled over to a safe spot, turning off the engine. I grabbed the automatic tire repair fluid can from the trunk, shook it vigorously for about ten seconds to mix the contents evenly, and then carefully connected the can to the tire’s valve stem—that small valve opening. Holding down the handle, I injected the fluid until the can was nearly empty, then used the included air pump to inflate the tire to the recommended pressure. Starting the car, I drove slowly for a few kilometers to allow the fluid to spread and seal the puncture. This method is quick and convenient, but it’s only a temporary fix. That time, I immediately went to a nearby repair shop to have a mechanic inspect it, preventing potential long-term damage to the tire or sensors. It’s wise to keep tire repair fluid and an air pump in your car, but remember to check the expiration date—don’t use it if it’s been over six months. Also, never exceed 80 km/h after using it, and if the puncture is too large, it’s safer to call a tow truck. The whole process took less than ten minutes and saved me a lot of hassle.

As a daily emergency item always kept in my car, I've used tire repair fluid several times with ease. The steps are super simple: when the tire suddenly goes flat, park the car and pull the handbrake—safety first. Shake the small can until you feel the liquid moving, then attach it directly to the valve stem and press to inject. Use the built-in air pump to inflate, and you're done. Drive a few hundred meters to confirm there are no leaks. I remember once helping a friend on a countryside trip—he had never tried it before, and we fixed the tire in two minutes, allowing us to continue our outing. The advantage of this product is that it saves time and effort, eliminating the hassle of changing a spare tire. The downside is that it only works for small punctures; large holes or sidewall damage won't be fixed, and it's not a long-term solution—I always visit a tire repair shop the same day for a permanent fix. A friend at an auto shop warned me not to use it on tires with TPMS sensors, as the fluid might clog the system. In short, it's portable and easy to use, making it quick for beginners to learn.

When using tire sealant, I will operate carefully to ensure safety. First, park the car on a flat roadside and turn off the engine. Check the tire surface for large punctures such as nails, and remove them if found. Shake the sealant can for more than ten seconds to fully mix the contents, then attach it tightly to the valve stem and inject the entire dose of liquid. Connect the inflation device to restore normal tire pressure, start the vehicle, and drive slowly for a few hundred meters to help the sealant seal the puncture. Afterwards, arrange for professional repair as soon as possible, as temporary fixes may fail or not last long. Special reminder: do not use it on highways or slippery road conditions, nor on severely damaged tires as it can be dangerous. During regular maintenance, check if the tire sealant is expired or leaking as a backup.

During a weekend family trip, I encountered a flat tire due to a nail puncture. Fortunately, I had tire sealant on hand. I asked my wife to check the tire pressure warning while I took action: after parking, I shook the can, connected it to the valve, and injected the liquid, then used the included air pump to inflate the tire to the proper pressure. I drove a few kilometers to the nearest repair shop to have it properly fixed. The whole process was incredibly practical and fast, especially when traveling with kids—it saved the hassle of changing the tire. However, remember this method only works for small punctures and cannot be used for sidewall damage. It's advisable to store the sealant in a fixed spot in the trunk to prevent shaking during bumps. After use, wash off any residue immediately to avoid corrosion of tire components. Keeping such emergency tools handy is absolutely worthwhile.


