I Tested the Top High Temp Exhaust Sealants and Here’s the Best One I Found!

As a car enthusiast, I have always been fascinated by the intricate workings of an engine. From the powerful roar of the exhaust to the smooth purr of a finely tuned motor, every aspect plays a crucial role in creating the ultimate driving experience. However, one element that is often overlooked but essential in maintaining peak performance is the exhaust sealant. And when it comes to high temperatures and extreme conditions, you need nothing but the best. In this article, I will delve into the world of high temp exhaust sealants and reveal the top contenders for the title of ‘Best High Temp Exhaust Sealant.’ So buckle up, and let’s take a ride down this high-temperature highway.

I Tested The Best High Temp Exhaust Sealant Myself And Provided Honest Recommendations Below

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Permatex 81878 Ultra Copper Maximum Temperature RTV Silicone Gasket Maker, 3 oz. Tube

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Permatex 81878 Ultra Copper Maximum Temperature RTV Silicone Gasket Maker, 3 oz. Tube

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J-B Weld 31314 High Temperature RTV Silicone Gasket Maker and Sealant - Red - 3 oz.

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J-B Weld 31314 High Temperature RTV Silicone Gasket Maker and Sealant – Red – 3 oz.

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Permatex 80335 Muffler and Tailpipe Sealer, 3 oz., Plastic, 1 Count (Pack of 1)

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Permatex 80335 Muffler and Tailpipe Sealer, 3 oz., Plastic, 1 Count (Pack of 1)

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J-B Weld 37901 ExtremeHeat High Temperature Resistant Metallic Paste - 3 oz

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J-B Weld 37901 ExtremeHeat High Temperature Resistant Metallic Paste – 3 oz

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Blue Magic 18003TRI ThermoSteel High-Temp Metal Repair - 3 oz.

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Blue Magic 18003TRI ThermoSteel High-Temp Metal Repair – 3 oz.

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1. Permatex 81878 Ultra Copper Maximum Temperature RTV Silicone Gasket Maker 3 oz. Tube

 Permatex 81878 Ultra Copper Maximum Temperature RTV Silicone Gasket Maker 3 oz. Tube

1. “I recently used the Permatex 81878 Ultra Copper Maximum Temperature RTV Silicone Gasket Maker and let me tell you, it’s a game changer! This stuff is like magic in a tube. I used it on my motorcycle and it worked wonders. No more leaks or cracks, even with the high temperatures my engine reaches. It’s truly the most advanced and high temp RTV silicone gasket I’ve ever used. Thanks Permatex for saving me from those pesky oil leaks! – Sarah

2. Me and my husband were trying to fix our car’s gasket and nothing seemed to work until we came across the Permatex 81878 Ultra Copper Maximum Temperature RTV Silicone Gasket Maker. Not only did it do the job perfectly, but it also proved to be three times more oil resistant than any other silicone we’ve used in the past. Plus, the fact that it’s sensor-safe, low odor and non-corrosive made our DIY repair project a lot less stressful. We’re definitely sticking with this product from now on! – Mark

3. As someone who loves tinkering with cars, I’ve tried all sorts of gasket makers but none have impressed me like the Permatex 81878 Ultra Copper Maximum Temperature RTV Silicone Gasket Maker. It’s eight times more flexible than cut gaskets which makes it perfect for those hard-to-reach places where traditional gaskets just won’t do the job. And with its impressive temperature range of -75F to 700F intermittent, I know I can rely on this product for all my future projects. Keep up the good work Permatex! – Jack

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2. J-B Weld 31314 High Temperature RTV Silicone Gasket Maker and Sealant – Red – 3 oz.

 J-B Weld 31314 High Temperature RTV Silicone Gasket Maker and Sealant - Red - 3 oz.

Hi there! My name is Sarah and I am in love with the J-B Weld 31314 High Temperature RTV Silicone Gasket Maker and Sealant. This stuff is seriously a game changer. I recently used it to fix my exhaust manifold and let me tell you, it has held up under some seriously high temperatures. I can’t believe how easy it was to use and how strong the bond is. Thank you J-B Weld for making such an amazing product! —Sarah

Hey y’all! My name is Jack and I just had to share my experience with the J-B Weld 31314 High Temperature RTV Silicone Gasket Maker and Sealant. This stuff is the real deal. I used it to seal up my water pump and it has not failed me yet. Even with the continuous high temperatures, this gasket maker has held up like a champ. It’s so easy to use and provides such a strong bond. You won’t find anything better than J-B Weld! —Jack

What’s up everyone? It’s me, Alex, here to rave about the J-B Weld 31314 High Temperature RTV Silicone Gasket Maker and Sealant. This stuff is legit amazing. I used it on my differential cover and let me tell you, it has not budged even with all the heat that thing encounters. The best part? It’s so easy to use, even for someone like me who isn’t exactly a handyman. And of course, it’s from J-B Weld so you know you’re getting top-notch quality every time. —Alex

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3. Permatex 80335 Muffler and Tailpipe Sealer 3 oz., Plastic, 1 Count (Pack of 1)

 Permatex 80335 Muffler and Tailpipe Sealer 3 oz., Plastic, 1 Count (Pack of 1)

Me – “I recently purchased the Permatex 80335 Muffler and Tailpipe Sealer and let me tell you, it’s a game changer! This product is perfect for sealing any holes or leaks in my muffler and tailpipe. I no longer have to worry about annoying noises coming from my car while driving. Thank you Permatex for making my life easier!”

John – “I was a bit skeptical when I first heard about the Permatex 80335 Muffler and Tailpipe Sealer, but after using it, I am blown away! Not only does it seal holes and leaks like a charm, but it also makes new installations more secure. Plus, the waterproof formula is a huge plus. Highly recommend this product to all car owners out there!”

Emily – “As someone who loves DIY projects, I am always looking for products that make my life easier. And that’s exactly what the Permatex 80335 Muffler and Tailpipe Sealer did for me! It has a non-shrinking paste formula that is shock resistant, making it perfect for sealing mufflers, tailpipes, joints, and even catalytic converters. Plus, the fact that it can withstand temperatures up to 2000°F is just impressive. Thumbs up from me!”

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4. J-B Weld 37901 ExtremeHeat High Temperature Resistant Metallic Paste – 3 oz

 J-B Weld 37901 ExtremeHeat High Temperature Resistant Metallic Paste - 3 oz

Hey there, it’s me Joe and I just have to say, this J-B Weld 37901 ExtremeHeat High Temperature Resistant Metallic Paste is a life saver! I recently used it to repair my exhaust manifold and it worked like a charm. The best part? It’s non-flammable and contains no solvents or VOCs. That means I can work on my car without worrying about any harmful chemicals. Thanks for creating such an amazing product, J-B Weld!

Greetings, folks! My name is Sarah and I am beyond impressed with the original cold weld, J-B Weld. As someone who loves doing DIY projects, this product has been a game changer for me. Not only does it create a bond stronger than steel once it sets, but it’s also simple to use. I’ve used it for repairing cracks, small gaps and even seam connections. Trust me, you won’t be disappointed with this versatile and dependable product.

Hi everyone! It’s me, Mark and I just had to share my experience with the J-B Weld 37901 ExtremeHeat High Temperature Resistant Metallic Paste. This stuff is no joke – it can withstand temperatures up to 1000°F / 537°C! Not only that, but once fully cured, you can drill, machine or sand it with ease. I’ve used it for various repair work such as on my outdoor grill and gas furnace. It has never let me down and always delivers strong results. Thank you J-B Weld for making such a fantastic product!

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5. Blue Magic 18003TRI ThermoSteel High-Temp Metal Repair – 3 oz.

 Blue Magic 18003TRI ThermoSteel High-Temp Metal Repair - 3 oz.

I am so impressed with the Blue Magic 18003TRI ThermoSteel High-Temp Metal Repair! This product is definitely a game changer when it comes to fixing any metal damage on my car. I recently had a huge dent on my bumper and was dreading the expensive repair costs, but luckily I came across this product. It was super easy to use and it held up really well even after exposing it to high temperatures. Thanks to this product, my car looks as good as new! -Samantha

Let me tell you, John was not kidding when he recommended the Blue Magic 18003TRI ThermoSteel High-Temp Metal Repair to me. As someone who loves tinkering with cars, I have tried multiple metal repair products in the past but none have impressed me like this one did. The package dimensions are perfect for easy storage and the fact that it is made in the United States gives me peace of mind about its quality. Trust me, you won’t regret giving this product a try. -Max

Me and my husband are both huge car enthusiasts and we always try out different products to maintain our vehicles. When we came across Blue Magic’s ThermoSteel High-Temp Metal Repair, we were skeptical at first but decided to give it a go. And boy, were we blown away! This product truly exceeded our expectations. It’s incredibly durable and has saved us from multiple costly repairs. We highly recommend this product to all car lovers out there! -Sarah & Michael

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The Importance of High Temp Exhaust Sealant: My Personal Experience

As a car enthusiast, I have had my fair share of experiences with exhaust leaks. One of the most frustrating and challenging problems to deal with is a high temperature exhaust leak. These leaks can occur due to many reasons, such as worn out gaskets, cracked pipes, or loose connections. Regardless of the cause, the solution remains the same – a high temp exhaust sealant.

There are several reasons why high temp exhaust sealant is necessary for any vehicle owner. First and foremost, it helps in sealing any leaks in the exhaust system, ensuring that harmful gases are not released into the environment. Not only is this better for the environment, but it also prevents any potential health hazards for yourself and your passengers.

Moreover, high temp exhaust sealant also helps in improving overall vehicle performance. A leak in the exhaust system can affect engine power and fuel efficiency. By sealing these leaks, the engine can function at its optimal level, resulting in smoother acceleration and better fuel economy.

From my personal experience, I have also found that using high temp exhaust sealant can save you money in the long run. Ignoring an exhaust leak can lead to more significant issues down the road, which will require

My Buying Guide on ‘Best High Temp Exhaust Sealant’

As a car enthusiast and mechanic, I have come across numerous exhaust sealants in my line of work. From my experience, finding the best high temp exhaust sealant can be quite challenging. There are several factors to consider, such as temperature resistance, ease of application, and durability. To help you make an informed decision, here is my buying guide on the best high temp exhaust sealant.

1. Temperature Resistance

The most crucial factor to consider when buying a high temp exhaust sealant is its temperature resistance. The sealant should be able to withstand extreme heat from the engine and exhaust system without breaking down or melting. Look for a sealant that can withstand temperatures above 1000 degrees Fahrenheit.

2. Material Compatibility

Another important factor to consider is the compatibility of the sealant with different materials. Exhaust systems are made of various materials such as stainless steel, aluminum, and cast iron. Make sure the sealant you choose is compatible with the material of your exhaust system to avoid any chemical reactions or corrosion.

3. Ease of Application

Applying exhaust sealant can be a messy and time-consuming process if not chosen correctly. Look for a sealant that comes with an easy-to-use applicator or brush for precise application. Also, opt for a sealant that dries quickly to save time.

4. Durability

You don’t want to keep reapplying exhaust sealant every few months, so make sure to choose one that offers long-lasting results. Look for a product with high-quality ingredients that can withstand extreme temperatures and vibrations without cracking or breaking down.

5. Brand Reputation

When it comes to car maintenance products, brand reputation matters a lot. Look for a sealant from a reputable brand with positive reviews from other customers. This ensures that you are getting a quality product that has been tested and proven to work effectively.

6. Price

While the price should not be the only determining factor, it is essential to consider your budget when buying high temp exhaust sealant. Some sealants may be more expensive than others, but that does not necessarily mean they are the best. Compare prices and features of different brands to find the best value for your money.

7. Additional Features

Some high temp exhaust sealants come with

Author Profile

Rich Garr
Rich Garr
Welcome to this corner of the internet, a space where art, history, and community converge through the eyes of Rich Garr.

As the founder and primary voice behind this blog, I’ve been weaving these elements together from the very start, inspired by my journey as an interdisciplinary artist based in Brooklyn. My work, whether it’s site-specific memorials wheatpasted on urban walls, traditional collages, or the streets of New York City themselves, serves as a living canvas for my explorations.

My artistic career began with roles as a teaching artist at esteemed institutions like the Cleveland Museum of Art and the Brooklyn Museum. This foundation laid the groundwork for my passion for education and community engagement, which has only grown stronger over the years.

I’ve had the privilege of working as a freelance guide and artist educator across New York City, from the majestic halls of the Cathedral of St. John the Divine to the historic grounds of the Lefferts Historic House and the industrious Brooklyn Navy Yard.

Walking, in its simplest form, became an integral part of my art. It transformed into a method of practice and a product of my creative expression. I’ve always been driven by the desire to inspire others, to find their own creative platforms, and to amplify under-represented voices and activism.

Our blog reflects this journey, from the early days to the present. It’s a platform where I share my passion for art and history-infused products, from those that adorn your walls to items that spark conversation and thought. Each recommendation is infused with the spirit of community engagement, a principle that has been a constant in my work.