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BYNoelle Talmon/ LAST UPDATED ON June 3, 2022
Most car owners will find themselves by the side of the road with a tire failure at some point due to a screw, nail, or other sharp objects. These punctures often lead to a loss of air, which can make driving unsafe and/or impossible. If you don't have access to a spare tire and you're stranded on the side of the road due to a flat tire, there is a solution that doesn't involve calling a tow truck for help.
Tire sealants are a great way to quickly repair a slow-leaking tire, and they can also be used for preventative measures. You can easily store this product in the trunk or other area of your vehicle for emergencies. The best tire sealants are affordable and easy to use, but they're not all created equally. We did the research and found some of the best options, so you'll be prepared the next time the unexpected occurs.
Best Overall
Slime Emergency Tire Repair Sealant
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Summary
A strong and fast-acting tire sealant capable of filling 1/4-inch punctures.
Best Value
Fix-A-Flat Tire Sealant and Car/SUV Tire Inflator
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Summary
Designed for cars and SUVs, this tire sealant is 24 ounces and can be used on extra-large tires. It fixes punctures up to 1/4-inch.
Honorable Mention
TireJect Tire Sealant Kit
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Summary
This formula is available in 10, 20, or 40 ounces as well as a one-gallon container.
It can fill punctures up to 3/8-inch.
Our reviews are driven by a combination of hands-on testing, expert input, “wisdom of the crowd” assessments from actual buyers, and our own expertise. We always aim to offer genuine, accurate guides to help you find the best picks.
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I took several factors into consideration when choosing the best tire sealants. First, I focused on well-known brands that have a reputation for producing high-quality products. I also looked at the effectiveness of each item.
Using user testimonials as a reference, I compared how each sealant performed in real-world conditions in order to determine how well they functioned overall.
I included products that are both solutions to a puncture and I made sure to pick products that can be used on a variety of different tires, from passenger cars to larger pickup trucks. I also included items in a wide range of prices to suit a variety of budgets. For more information on our methodology, go here.
Slime Emergency Tire Repair Sealant
While the name may be gross, Slime tire sealant is one of the most effective sealants on the market.
It is capable of filling punctures up to 1/4-inch, which is around the size of a normal screw or nail. It’s a great preventative measure to help fight against the possibility of full tire blowouts.
This small and powerful formula is fit for cars, trucks, SUVs, ATVs, trailers, and RVs. Plus, it’s compact enough to take with you, no matter where you plan on driving. One of the best features we found is that the bottle comes with its own valve core removal tool, giving you easy access to prevent leaks in your tires.
However, if you are using it for a car or trailer, there is a restriction on how fast you should drive. It’s only effective at speeds up to 65 mph, and should only be used as a quick fix if you tend to drive at speeds around this mark.
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This simple small yet effective tire sealant is capable of making sure a large tire holds its air until you get it properly taken care of.
Its compact bottle means you can take it with you and quickly use it in case you have a tire emergency. You can easily check what tires Fix-A-Flat fits by checking out the guide on their website.
It is able to fully block a puncture up to 1/4-inch. While it isn’t a permanent fix, it will last long enough for you to drive it to the shop or back home. It’s easy to attach to your tire nozzles as well, giving you more time to get back on the road and less time worrying about how much air you’ve lost. It’s nontoxic, noncorrosive, and nonflammable as well, making it safe for the environment. It’s also safe to use on cars with a TPMS monitoring system.
While it may be fast-acting, you will have to move the car to the right position in order for the compound to take hold effectively. That means you have to make sure to park where the puncture is at the six o’clock angle, which can be difficult to do by yourself.
When ordering this tire sealant, you have the option of choosing 10, 20, or 40 ounces.
You can also choose to order a one-gallon container. The sealant is a liquid rubber mixture that contains tire particles and Dupont Kevlar fibers. Every 10 ounces of sealant comes with one bladder bag and one injector tool. You can use this repair kit to repair punctures in your tires from screws, nails, thorns, or anything else. The sealant only works on punctures that are up to 3/8-inch.
You’ll find this sealant system is easy to use, thanks to the included injector tool. You connect it to your valve stem for a mess-free installation. You can even install this sealant on all four of your tires and prevent future flats for the next year.
This tire sealant is meant for use with motorcycle tires.
It will balance and seal your tire by evenly coating the inside surface of your tire. If your tire suffers a puncture while you’re riding, the centrifugal force of your rotating tire and the internal air pressure will move the Ride-On sealant into the hole. This will instantly seal it. This will work on punctures that are up to 1/4-inch in tubeless tires and 1/8-inch in tube tires.
You’ll like that this sealant turns your tires into self-sealing tires. They’ll also eliminate the need for ugly wheel weights. This sealant is specifically designed for use in high-speed tires. It’ll improve the performance of your motorcycle tires by dampening road vibration and noise.
This tire sealant comes in a variety of sizes based on your needs: 8, 16, or 32 ounces or a one-gallon container.
It will instantly seal your pneumatic tires and tubes. It protects against thorns, screws, and any other sharp objects. To use, extend the included hose and attach it to your tire valve. Then use the reliable pump action nozzle to dispense the sealant into your tire.
What’s nice about this sealant is that it specifically states that it’s safe for use with a variety of metals. This includes chrome, steel, and alloys used in wheel making. You can confidently use this sealant without worrying that it will ruin your wheels. It also stays liquid and won’t corrode or cause rust.
The Slime 50107 Kit contains two distinct elements: a powerful tire inflator and the emergency tire repair sealant.
Instead of having to use a jack to change out the punctured tire, leave that hassle behind. The sealant is tire sensor safe and works well with standard car tires. The Slime tire sealant repairs tread area punctures up to 1/4-inch in diameter. Along with the kit’s included inflator, you can repair and inflate the tire within 15 minutes. Simply plug the tire inflator into your vehicle’s 12-volt accessory power outlet to get it started. It features a quick connect air hose and a built-in tire pressure dial gauge. The 16-ounce bottle of the emergency non-toxic tire sealant instantly seals punctures. The process is simple and hassle-free.
However, some users have experienced issues with the product going dead and not working when they needed it. Some actually lost more air after using this sealant.
Whether you drive a car or truck or ride a motorcycle, STP Tire Fix Sealant and Inflator works well without any tools required.
The non-flammable formula seals punctures that are up to 1/4-inch in diameter, it is easy to clean up with water, and it will hold air for as long as three days.
The product is also safe to use with tire pressure monitoring sensors. We like that this product is so easy to use: just fill up the tire to seal and inflate it, and go. Sixteen ounces fills a standard-sized tire, while 20 ounces fills larger tires. Overall, it's great for emergencies and is a short-term solution. The company recommends going to a repair shop for inspection and a permanent fix within a couple of days after application.
Slime Emergency Tire Repair Sealant is well-known in the industry and can repair screw or nail punctures up to 1/4-inch long. It can be used on cars, trucks, SUVs, ATVs, RVs, and more. It includes a valve core removal tool to make the process easier. For a slightly more budget-friendly option, consider the equally effective Fix-A-Flat Tire Sealant and Car/SUV Tire Inflator.
Aerosol tire sealant is one of only two types. A single-use product, aerosol sealant is for emergency repairs that will allow you to drive short distances on a punctured tire. It comes in a bottle that sprays, allowing a simple application to fill holes in the tire with great accuracy. When you spray the product into the valve, the punctured tire will inflate. The formula coats the inside of the tire to plug any leaks or holes.
The second type of sealant for a punctured tire comes in the form of a thick gel. Using the gel option can be a bit more difficult than the aerosol tire sealant, as it is harder to put in place. Plus, it can be messier due to its slimy substance. To use the gel sealant, you will usually need tools or equipment to make sure the tire is properly sealed and no longer leaking air.
Many tire sealants are very affordable and cost between $10 and $20. These products are often at least 16 ounces in size and work as promised. They are no-frills, but they get the job done. If you spend upwards of $60, you will often find much larger sealant containers or those that are part of a kit, which can include items such as tire inflators. If you have room in your vehicle for a kit, it may be worth storing one in your trunk due to the added features, such as accessories for inflatable and carrying bags.
You’ve got questions. The Drive has answers.
Tire sealants are for temporary use and not a permanent solution. The tire sealant’s purpose is to get you to the nearest gas station, automotive shop, or dealership to fix the tire. Depending on the amount of damage to the tire, you may need to get a brand-new tire put on the vehicle.
Tubeless tire sealant should last an average of two-six months. However, the life span depends on several factors, such as temperature, humidity, driving frequency, tire casing thickness, and the number of punctures.
This depends on the type of tire sealant and the brand. Each product should state how long they last, but generally they can last up to two years before needing to replace the tires.
A: This varies on the size of the tire you are trying to fill the puncture in. A lawn mower tire is smaller and therefore doesn’t need that much product. However, a Jeep tire is larger and will typically need an entire bottle of tire sealant.
A: You inject the tire sealant through the valve or tire nozzle.
After completing that step, you then fill the tire with air until it is at the required amount.
For many American motorists, it’s still one of the cheapest and most convenient ways to fix a tire blowout . Simply use an aerosol tire inflator like the ones manufactured by Fix-a-Flat to fix a puncture, and you’re ready to go. If you are one of those motorists, you also must know that aerosol tire inflators have been linked to tire explosions, causing catastrophic injuries and even death.
Aerosol inflators are handy devices that have become very popular over the past couple of decades. These provide a cheap way to fix a tire when you are nowhere near an auto repair shop and have a flat. The can comes with sealant that fills up the inside of the tire to seal the puncture. Aerosol tire inflators are meant to be temporary fixes.
There are several companies that manufacture aerosol tire inflators, including Fix-A-Flat, which, for many years, dominated the market.
Other brands include Puncture Seal, manufactured by Radiator Specialty Company, and brands manufactured by Golden Eagle and Johnsen’s.
Back in the early ’90s, the National Highway Traffic Safety Administration (NHTSA) released a warning about the dangers of fixing tires with aerosol inflators. According to the NHTSA alert, aerosol inflators are commonly used, so a person may not realize that it is a flammable aerosol product. The alert warned against the use of metal tools, like tire levers, tire irons, hammers or any other tools that could ignite sparks, around the tire. A tire filled with sealant can explode when it comes into contact with sparks, causing serious injury or even death to the person fixing the tire or others nearby.
Often, aerosol tire inflators contain flammable substances, like propane, butane and isobutene. All of these tire sealants are highly flammable and are very likely to explode when they come into contact with sparks. Several manufacturers have moved away from the use of explosive propellants to non-explosive substitutes.
However, many brands still contain flammable propellants. These continue to place persons changing the tire at risk of burns and other injuries.
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In a typical explosion that happens when a person changes a tire filled with combustible sealant using metal welding tools and other tools, the person can be thrown several feet away from the site of the explosion. Third-degree burns are common during such explosions. Severe organ damage and other complications are also fairly common. Many of these incidents have resulted in death, usually after extensive and agonizing hospitalization.
Many companies have changed their manufacturing processes so that such flammable substances are not introduced inside tires. However, other companies continue to do so. A tire filed with sealant literally becomes a bomb that can explode in the presence of sparks.
The dangers involved also necessitate heightened precautions while repairing the tire. A worker must take the tire out of the environment, where the dangers of coming into contact with sparks are low.
If you or a loved one have suffered injuries because of a tire explosion caused by a defective tire and you have questions about your legal rights, speak with a product liability attorney at our law firm. You likely are eligible for compensation for your losses. A typical tire defect claim can recover damages for medical expenses, lost wages and disability.
The law firm at Chalik & Chalik will discuss whether you have a viable claim and will identify potential parties that can be named in a product liability claim to recover damages. Call a defective tire lawyer toll-free at our firm 24/7 or fill out an online contact form to have an attorney contact you.
Call or text Chalik & Chalik (855) 529-0269
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