--- title: "exhaust sealant — Niche Verdict: Skip it (45/100) | Amazon United States - Flapen" canonical_url: "https://flapen.com/amazon/research/us/automotive/exhaust-sealant" last_updated: "2026-07-10T21:10:02.506Z" locale: en meta: description: "a small market ($83K/yr) — exhaust sealant doesn't clear our bar today." "og:description": "a small market ($83K/yr) — exhaust sealant doesn't clear our bar today." "og:title": "exhaust sealant — Niche Verdict: Skip it (45/100) | Amazon United States - Flapen" --- Back to Flapen home # **exhaust sealant** **Skip it****45/100 ** a small market ($83K/yr) — exhaust sealant doesn't clear our bar today. **Market/yr** **$83K** **Growth (1y)** **+193.0%** **Products** **19** **Brands** **7** was 7 a year ago **Sellers** **121** **Price range** **$4.25–$25.20** **Returns** **1.5%** **Rating** **4.3★** **Skip it** Scored 45/100 across market size, growth, competition, quality gap, and returns. Market sizeGrowthCompetitionQuality gapReturns Market size **4** ×0.30 Growth **76** ×0.30 Competition **36** ×0.20 Quality gap **55** ×0.10 Returns **88** ×0.10 ## **Demand** Weekly Amazon search volume, last 49 weeks — +193.0% year over year. 2K915.5Spike '26Aug '25Sep '25Nov '25Jan '26Mar '26May '26 ## **Competition** - J-B Weld29% - Permatex29% - Visbella19% - LOCBONDSO13% - MPD6% - Walker2% - Other (1 brands)2% The top 5 products take 66% of clicks — established leaders, but buyers still shop beyond them. 7 brands and 121 sellers compete here. **Brands** **7 **—flat was 7 a year ago **Sellers** **121** **Top 5 brand share** **97%** #ProductBrandPriceRatingReviewsClick shareTrend 1 ![Permatex 81878 Ultra Copper Maximum Temperature RTV Silicone Gasket Maker 3 oz. Tube](https://m.media-amazon.com/images/I/41VG2wVHcOL.jpg) [**Permatex 81878 Ultra Copper Maximum Temperature RTV Silicone Gasket Maker 3 oz. Tube**](https://www.amazon.com/dp/B0002UEOPA) Permatex$8.134.8★3,36518%—flat 2 ![J-B Weld MufflerSeal Muffler Cement Plastic Tube 12 oz. Model Number: 37912](https://m.media-amazon.com/images/I/41iV-p0dt1L.jpg) [**J-B Weld MufflerSeal Muffler Cement Plastic Tube 12 oz. Model Number: 37912**](https://www.amazon.com/dp/B084T8BW18) J-B Weld$12.754.4★1,65416%▼falling 3 ![Visbella Auto Vehicle Exhaust System Sealant Non-Slumping Professional Repair Crack Adhesive Super Glue Sealer for Car Mufflers Tailpipes Catalytic Converters (Tube Gram 75)](https://m.media-amazon.com/images/I/31KxU6Krp8L.jpg) [**Visbella Auto Vehicle Exhaust System Sealant Non-Slumping Professional Repair Crack Adhesive Super Glue Sealer for Car Mufflers Tailpipes Catalytic Converters (Tube Gram 75)**](https://www.amazon.com/dp/B0BLN6XSDK) Visbella$7.864.2★80914%▲rising 4 ![LOCBONDSO Muffler Repair Kit Heat Resistant Up to 2012F Exhaust Sealant Professional Seal for Exhaust Systems Mufflers Tailpipes and Catalytic Converters 2.6 oz](https://m.media-amazon.com/images/I/31uN6srM4dL.jpg) [**LOCBONDSO Muffler Repair Kit Heat Resistant Up to 2012F Exhaust Sealant Professional Seal for Exhaust Systems Mufflers Tailpipes and Catalytic Converters 2.6 oz**](https://www.amazon.com/dp/B0D97XX6KP) LOCBONDSO$7.654.1★40112%▲rising 5 ![MPD Muffler Cement Putty 16 oz | Seals Exhaust Leaks Cracks & Holes | Heat Resistant Up to 2000F | Easy Application for Automotive Repairs (Pack of 1)](https://m.media-amazon.com/images/I/41QM7ssNUFL.jpg) [**MPD Muffler Cement Putty 16 oz | Seals Exhaust Leaks Cracks & Holes | Heat Resistant Up to 2000F | Easy Application for Automotive Repairs (Pack of 1)**](https://www.amazon.com/dp/B0FDH7C59P) MPD$16.184.4★1165%▲rising 6 ![J-B Weld 37901 ExtremeHeat High Temperature Resistant Metallic Paste - 3 oz](https://m.media-amazon.com/images/I/416pMXDYJ3L.jpg) [**J-B Weld 37901 ExtremeHeat High Temperature Resistant Metallic Paste - 3 oz**](https://www.amazon.com/dp/B01IBOBY74) J-B Weld$8.084.2★12,2005%▼falling 7 ![Visbella Auto Vehicle Exhaust System Sealant Non-Slumping Professional Repair Crack Adhesive Super Glue Sealer for Car Mufflers Tailpipes Catalytic Converters (Tube Gram 150)](https://m.media-amazon.com/images/I/311T4su9z9L.jpg) [**Visbella Auto Vehicle Exhaust System Sealant Non-Slumping Professional Repair Crack Adhesive Super Glue Sealer for Car Mufflers Tailpipes Catalytic Converters (Tube Gram 150)**](https://www.amazon.com/dp/B0BXKW1WZ8) Visbella$9.924.2★8094%▼falling 8 ![J-B Weld MufflerSeal Muffler Cement Plastic Tube 6 oz. (37906)](https://m.media-amazon.com/images/I/317xdUGZrqL.jpg) [**J-B Weld MufflerSeal Muffler Cement Plastic Tube 6 oz. (37906)**](https://www.amazon.com/dp/B084T84CWJ) J-B Weld$7.804.4★1,6544%—flat 9 ![Permatex 80335 3 Oz Muffler & Tailpipe Sealer](https://m.media-amazon.com/images/I/51xAkj44TxL.jpg) [**Permatex 80335 3 Oz Muffler & Tailpipe Sealer**](https://www.amazon.com/dp/B06XJ79W3P) Permatex$9.173.8★44%▲rising 10 ![J-B Weld ExhaustWeld 2 x 72 Repair Wrap White](https://m.media-amazon.com/images/I/51dyvfHibtL.jpg) [**J-B Weld ExhaustWeld 2 x 72 Repair Wrap White**](https://www.amazon.com/dp/B09BBHSJ9Z) J-B Weld$14.884.2★4,0593%▼falling 11 ![Permatex 80335 Muffler and Tailpipe Sealer 3 oz. Plastic](https://m.media-amazon.com/images/I/41DFZXokYML.jpg) [**Permatex 80335 Muffler and Tailpipe Sealer 3 oz. Plastic**](https://www.amazon.com/dp/B000BOAZM8) Permatex$4.254.4★5,5712%▼falling 12 ![Walker 35958 Muffler/Exhaust Putty](https://m.media-amazon.com/images/I/41dHvjilhaL.jpg) [**Walker 35958 Muffler/Exhaust Putty**](https://www.amazon.com/dp/B000CQHVLI) Walker$12.544.4★1,0142%▲rising 13 ![LOCBONDSO High Temp Exhaust Repair Kit Muffler Repair Kit & Exhaust Sealant Exhaust Leak Repair for Muffler Tailpipe Exhaust System 5.3 oz.](https://m.media-amazon.com/images/I/415AYKDxAUL.jpg) [**LOCBONDSO High Temp Exhaust Repair Kit Muffler Repair Kit & Exhaust Sealant Exhaust Leak Repair for Muffler Tailpipe Exhaust System 5.3 oz.**](https://www.amazon.com/dp/B0DM99BS16) LOCBONDSO$9.734.0★2682%▼falling 14 ![Permatex 27038 Optimum Red High Temperature Gasket Maker 3 oz](https://m.media-amazon.com/images/I/41fQbX+bkSL.jpg) [**Permatex 27038 Optimum Red High Temperature Gasket Maker 3 oz**](https://www.amazon.com/dp/B08CRYCZ91) Permatex$8.744.7★4362%—flat 15 ![Holts LOYFG1RP Firegum 150g Black](https://m.media-amazon.com/images/I/31vyG4DqXaL.jpg) [**Holts LOYFG1RP Firegum 150g Black**](https://www.amazon.com/dp/B005BP5N9W) Holts$13.144.5★1,6052%▼falling **~~Showing 15 of 19 — show all ~~** ## **Product shelf** All 19 tracked products in this niche. Top sellersNewestTrending [![Permatex 81878 Ultra Copper Maximum Temperature RTV Silicone Gasket Maker 3 oz. Tube](https://m.media-amazon.com/images/I/41VG2wVHcOL.jpg)**Permatex 81878 Ultra Copper Maximum Temperature RTV Silicone Gasket Maker 3 oz. Tube** Permatex**$8.13**4.8★3,365 reviews](https://www.amazon.com/dp/B0002UEOPA) [![J-B Weld MufflerSeal Muffler Cement Plastic Tube 12 oz. Model Number: 37912](https://m.media-amazon.com/images/I/41iV-p0dt1L.jpg)**J-B Weld MufflerSeal Muffler Cement Plastic Tube 12 oz. Model Number: 37912** J-B Weld**$12.75**4.4★1,654 reviews](https://www.amazon.com/dp/B084T8BW18) [![Visbella Auto Vehicle Exhaust System Sealant Non-Slumping Professional Repair Crack Adhesive Super Glue Sealer for Car Mufflers Tailpipes Catalytic Converters (Tube Gram 75)](https://m.media-amazon.com/images/I/31KxU6Krp8L.jpg)**Visbella Auto Vehicle Exhaust System Sealant Non-Slumping Professional Repair Crack Adhesive Super Glue Sealer for Car Mufflers Tailpipes Catalytic Converters (Tube Gram 75)** Visbella**$7.86**4.2★809 reviews](https://www.amazon.com/dp/B0BLN6XSDK) [![LOCBONDSO Muffler Repair Kit Heat Resistant Up to 2012F Exhaust Sealant Professional Seal for Exhaust Systems Mufflers Tailpipes and Catalytic Converters 2.6 oz](https://m.media-amazon.com/images/I/31uN6srM4dL.jpg)**LOCBONDSO Muffler Repair Kit Heat Resistant Up to 2012F Exhaust Sealant Professional Seal for Exhaust Systems Mufflers Tailpipes and Catalytic Converters 2.6 oz** LOCBONDSO**$7.65**4.1★401 reviews](https://www.amazon.com/dp/B0D97XX6KP) [![MPD Muffler Cement Putty 16 oz | Seals Exhaust Leaks Cracks & Holes | Heat Resistant Up to 2000F | Easy Application for Automotive Repairs (Pack of 1)](https://m.media-amazon.com/images/I/41QM7ssNUFL.jpg)**MPD Muffler Cement Putty 16 oz | Seals Exhaust Leaks Cracks & Holes | Heat Resistant Up to 2000F | Easy Application for Automotive Repairs (Pack of 1)** MPD**$16.18**4.4★116 reviews](https://www.amazon.com/dp/B0FDH7C59P) [![J-B Weld 37901 ExtremeHeat High Temperature Resistant Metallic Paste - 3 oz](https://m.media-amazon.com/images/I/416pMXDYJ3L.jpg)**J-B Weld 37901 ExtremeHeat High Temperature Resistant Metallic Paste - 3 oz** J-B Weld**$8.08**4.2★12,200 reviews](https://www.amazon.com/dp/B01IBOBY74) [![Visbella Auto Vehicle Exhaust System Sealant Non-Slumping Professional Repair Crack Adhesive Super Glue Sealer for Car Mufflers Tailpipes Catalytic Converters (Tube Gram 150)](https://m.media-amazon.com/images/I/311T4su9z9L.jpg)**Visbella Auto Vehicle Exhaust System Sealant Non-Slumping Professional Repair Crack Adhesive Super Glue Sealer for Car Mufflers Tailpipes Catalytic Converters (Tube Gram 150)** Visbella**$9.92**4.2★809 reviews](https://www.amazon.com/dp/B0BXKW1WZ8) [![J-B Weld MufflerSeal Muffler Cement Plastic Tube 6 oz. (37906)](https://m.media-amazon.com/images/I/317xdUGZrqL.jpg)**J-B Weld MufflerSeal Muffler Cement Plastic Tube 6 oz. (37906)** J-B Weld**$7.80**4.4★1,654 reviews](https://www.amazon.com/dp/B084T84CWJ) ## **Reviews** What buyers praise and complain about, mined from review topics. ### **What buyers love ** **Quality-Overall**20% *“JB weld is a pretty good product”* **Efficiency**11% *“The repair itself worked well”* **Value For Money**11% *“Great value”* **Advertised Vs Actual Product**10% *“Works as advertised”* **Leak-Proof**8% *“not leaking air anymore”* **Adhesion/Stickiness**6% *“It stick”* **Ease Of Use**6% *“Easy to use”* **Durability**4% *“is very durable”* **Maintenance And Repair**4% *“Definitely something to keep around for serious repairs”* **Heating**4% *“Great for high heat repairs”* ### **What buyers complain about ** **Durability**17% *“falls apart within days”* **Functionality-Overall**11% *“Did not work”* **Leak-Proof**10% *“Took a spill”* **Quality-Overall**7% *“This product is of very poor quality”* **Adhesion/Stickiness**6% *“The tape that comes with it breaks while trying to unspool”* **Value For Money**5% *“It's a little pricey to use where you don't need maximum temperature silicone RTV gasket maker”* **Strength**4% *“Not strong enough for mufflers”* **Material Quality**3% *“Not much material in that little can”* **Heating**3% *“Didn't stay in place while running the engine exhaust to heat it up”* **Maintenance And Repair**2% *“Muffler repair”* #### **Top return reasons**- Functionality-Overall22% - Maintenance And Repair9% - Size-Overall8% - Advertised Vs Actual Product8% - Value For Money7% - Defective Material/Parts7% - Compatibility-Overall5% - Leak-Proof5% - Adhesion/Stickiness5% - Heating3%