Top 10 Best Exhaust Sealant – To Buy Online

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Are you looking for Exhaust Sealant Reviews? Our experts found 52999 number of feedback online for "Exhaust Sealant" and shortlisted them. This suggestions is created for those looking for their ideal Exhaust Sealant. On selected products for the Best Exhaust Sealant you will see ratings. The rating matrix we have generated is based on user ratings found online. Take a look -

Comparison Chart for Best Exhaust Sealant

52999 reviews were considered when writing our recommendations for the Exhaust Sealant in this article.

NoProductScoreAction
1J-B Weld 37901 ExtremeHeat High Temperature Resistant Metallic Paste - 3 oz9.6Check Latest Price
2J-B Weld ExhaustWeld 2" x 72" Repair Wrap9.2Check Latest Price
3Permatex 81878 Ultra Copper Maximum Temperature RTV Silicone Gasket Maker9Check Latest Price
4J-B Weld 31314 High Temperature RTV Silicone Gasket Maker and Sealant - Red - 3 oz9Check Latest Price
5Permatex 59214 High Temperature Thread Sealant9Check Latest Price
6Gasoila DE04 DEF Diesel Exhaust Thread Sealant8.8Check Latest Price
7Permatex 80335 Muffler and Tailpipe Sealer8.4Check Latest Price
8Permatex 80335 Muffler and Tailpipe Sealer8.4Check Latest Price
9Versachem Exhaust System Joint and Crack Sealer (00160)8.4Check Latest Price
10Dynomax 35958 Hardware Muffler Cement8.4Check Latest Price

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

  • JB WELD EXTREME HEAT: Is formulated for repairs to iron, steel and metal in high temperature environments 1000°F / 537°C.
  • THE ORIGINAL COLD WELD: JB Weld was developed as an alternative to torch welding.
  • SIMPLE TO USE: When fully cured, this metallic compound can be drilled, machined or sanded.
  • VERSATILE & DEPENDABLE: Ideal for repair work on : exhaust manifolds, pipe connections, mufflers, catalytic converters, outdoor grills, fire boxes, gas and commercial furnaces and water heaters.
  • DO IT YOURSELF: Big or small, you can DIY it with J-B.

2. J-B Weld ExhaustWeld 2″ x 72″ Repair Wrap

  • J-B WELD EXHAUSTWELD: A high strength fiberglass wrap, impregnated with a specially formulated resin for high temperature resistant repairs.
  • CURE AND SET TIME: ExhaustWeld can cure with or without heat! It will cure within 20 minutes if heat is applied to it with either a heat gun or by letting the engine run.
  • HIGH HEAT RESISTANCE: Once fully cured, J-B Weld ExhaustWeld Exhaust System Repair Wrap has a temperature resistance of 1100°F, allowing it to be used on every part of the exhaust system!.
  • APPLICATIONS: Manifolds, Catalytic Converters, Mufflers, Tailpipes and more!
  • EVERYTHING YOU NEED: The kit includes a pair of gloves and a .5″ x 24″ piece of aluminum tape!
  • DO IT YOURSELF: Big or small, you can DIY it with J-B Weld.

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

  • Most advanced, high temp RTV silicone gasket available
  • Three times more oil resistant than conventional silicones; eight times more flexible than cut gaskets.
  • Sensor-safe, low odor, and non-corrosive with superior adhesion
  • Temperature range -75F to 700F intermittent
  • Suggested Applications: Exhaust manifolds/headers, valve covers, oil pans, timing covers, water pumps, thermostat housings.

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

  • HI TEMP RED SILICONE GASKET MAKER & SEALANT: Is an RTV (Room Temperature Vulcanized) Silicone gasketing material, designed for use in mechanical assemblies where the existence of higher, continuous temperatures up to 550º F or 650º F intermittent might exist.
  • COUNT ON US: For more than 40 years, our products have earned a loyal following from people who take pride in their work.
  • EASY TO USE: Curing when the product is exposed to the moisture in air, it forms a tough, waterproof seal on most surfaces.
  • VERSATILE & DEPENDABLE: Ideal for automotive, metal, oil pans, exhaust manifolds, water pumps, timing covers, differential covers, drive housings and oven doors.
  • DO IT YOURSELF: Big or small, you can DIY it with J-B.

5. Permatex 59214 High Temperature Thread Sealant

  • Locks and seals threaded fittings
  • Resists leakage, vibration loosening, moisture, hydraulic fluids and diesel fuels
  • Lubricates threads for easy assembly and disassembly
  • Parts may be repositioned up to 4 hours after application
  • Suggested Applications: head bolts into through holes, oil PSI sending units and sensors, oil and coolant lines, fuel fittings, rear axle fill plug, brake and power steering fittings.

6. Gasoila DE04 DEF Diesel Exhaust Thread Sealant

  • Excellent performance with systems handling diesel exhaust fluid, 100 percent methanol, ethanol, alcohol and ideal for concentrated or dilute acids and caustic alkali.
  • Not for use on plastic pipe or oxygen
  • Temperature range: -50 degree Fahrenheit to 450 degree Fahrenheit
  • Pressure range: 10000 PSI sealing liquids and 3000 PSI sealing gases
  • For use on NPT threads

7. Permatex 80335 Muffler and Tailpipe Sealer

  • Seals holes and leaks in mufflers, tailpipes and around joints
  • Makes new installations more secure
  • Waterproof, non-shrinking paste formula; shock resistant
  • Temperature Range: up to 2000°F (1000°C)
  • Suggested Applications: Mufflers, tailpipes, joints, and catalytic converters; exhaust system must be cool before applying.

8. Permatex 80335 Muffler and Tailpipe Sealer

  • Seals holes and leaks in mufflers, tailpipes and around joints
  • Makes new installations more secure
  • Waterproof, non-shrinking paste formula; shock resistant
  • 3 PACK
  • Suggested Applications: Mufflers, tailpipes, joints, and catalytic converters; exhaust system must be cool before applying.

9. Versachem Exhaust System Joint and Crack Sealer (00160)

  • A special high-temperature joint sealing compound which is resistant to corrosive exhaust heat and gases.
  • Can be forced into small openings and cracks
  • Temperature Resistance: 1000ºF continuous, 1500ºF intermittent

10. Dynomax 35958 Hardware Muffler Cement

  • Effective for sealing exhaust joints subject to elevated temperatures
  • Ideal for “out-of-round” muffler and pipe connections
  • Cures in minutes
  • New Walker accessories help to ensure effective exhaust repairs
  • Walker supplies all of the accessories you need to do the complete exhaust job

How To Choose The Best Exhaust Sealant

Does the thought of finding a great Exhaust Sealant stress you out? Has your mind been juggling between choices when it comes to buying Exhaust Sealant in general, specifically regarding which model to choose?
If that’s the case, know that you’re not alone. Many people find it tough to buy the perfect Exhaust Sealant for themselves. We understand the stress associated with the buying process!

Since you’re here, you are obviously curious about Exhaust Sealant. You’ve been bombarded with information, so you need to find a reputable source with credible options before you make any decisions on which product would be best for your needs.

There are many sources that’ll provide you with that information- buying guides or ratings websites, word-of-mouth testimonials from friends or family members, online forums where users share their personal experiences, product reviews specifically found all over the internet and YouTube channels. Only thorough research will ensure that you get the right product.

But that’s not always easy, right? That's why we've taken time to compile a list of the best Exhaust Sealant in today's market, on your behalf, so that there will be no more worries for you.

How did we come up with the list, you ask? How did we create this buying guide?

  • First, our algorithms collected as much information available about these products from trusted sources.
  • We employed both Artificial Intelligence and large data volume to validate all collected information.
  • Then our AI ranked them on their quality-to-price ratio using industry-standard criteria that let us pick the best Exhaust Sealant currently on the market!
The products aren’t chosen randomly. We consider several criteria before assembling a list. Some of the criteria are discussed below-

  1. Brand Value: What happens when you go for a not-so-reputable brand just because the price seems cheap? Well, the chance of getting a short-lasting product goes higher. That’s because the renowned brands have a reputation to maintain, others don’t.


Top Exhaust Sealant brands try to offer some unique features that make them stand out in the crowd. Thus hopefully, you’ll find one ideal product or another in our list.

  1. Features: You don’t need heaps of features, but useful ones. We look at the features that matter and choose the top Exhaust Sealant based on that.
  2. Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products of higher specifications, but with the right balance.
  3. Customer Ratings: The hundreds of customers using the Exhaust Sealant before you won’t say wrong, would they? Better ratings mean better service experienced by a good number of people.
  4. Customer Reviews: Like ratings, customer reviews give you actual and trustworthy information, coming from real-world consumers about the Exhaust Sealant they used.
  5. Seller Rank: Now, this is interesting! You don’t just need a good Exhaust Sealant, you need a product that is trendy and growing in sales. It serves two objectives. Firstly, the growing number of users indicates the product is good. Secondly, the manufacturers will hopefully provide better quality and after-sales service because of that growing number.
  6. Value For The Money: They say you get what you pay for. Cheap isn’t always good. But that doesn’t mean splashing tons of money on a flashy but underserving product is good either. We try to measure how much value for the money you can get from your Exhaust Sealant before putting them on the list.
  7. Durability: Durability and reliability go hand to hand. A robust and durable Exhaust Sealant will serve you for months and years to come.
  8. Availability: Products come and go, new products take the place of the old ones. Probably some new features were added, some necessary modifications were done. What’s the point of using a supposedly good Exhaust Sealant if that’s no longer continued by the manufacturer? We try to feature products that are up-to-date and sold by at least one reliable seller, if not several.
  9. Negative Ratings: Yes, we take that into consideration too! When we pick the top rated Exhaust Sealant on the market, the products that got mostly negative ratings get filtered and discarded.
These are the criteria we have chosen our Exhaust Sealant on. Does our process stop there? Heck, no! The most important thing that you should know about us is, we're always updating our website to provide timely and relevant information.

Since reader satisfaction is our utmost priority, we have a final layer of filtration. And that is you, the reader! If you find any Exhaust Sealant featured here Incorrect, irrelevant, not up to the mark, or simply outdated, please let us know. Your feedback is always welcome and we’ll try to promptly correct our list as per your reasonable suggestion.