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Permatex

Permatex 80335 Muffler and Tailpipe Sealer, 3 oz., Plastic

  • Based on 5,222 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Crimp Supply Inc
Arrives Jun 23 – Jun 25
Order within 17 hours and 8 minutes
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Features

  • 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)

Description

Permatex, 3 OZ Muffler & Tailpipe Sealer, Seals Holes & Leaks In Mufflers, Tailpipes & Around Joints. Easy to use. This product is highly durable. This product is manufactured in China.

Material: Stainless Steel


Brand: Permatex


Style: Compact


Item Weight: 0.2 Pounds


Item dimensions L x W x H: 8 x 4 x 2 inches


Brand Name: Permatex


UPC: 686226803351


Unit Count: 1.0 Count


Global Trade Identification Number: 51


Number of Items: 1


Part Number: 80335


Model: 80335


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


Manufacturer: Permatex


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


Warranty Description: Warranty


Water Resistance Level: Waterproof


Item Form: Paste


Compatible Material: Plastic


Item Weight: 0.2 Pounds


Item Dimensions: 8 x 4 x 2 inches


Style Name: Compact


Color: white


Surface Recommendation: Miscellaneous


Material Type: Stainless Steel


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jun 23 – Jun 25

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

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Similar Products

Top Amazon Reviews

    • Easy to apply and dries/cures hard and adheres!
Size: 1 Count (Pack of 1)
Solid stuff that seals/dries hard and stays in place. Good for a bandaid fix and/or for ensuring tight leak free connection on a band clamp.
Reviewed in the United States on September 24, 2025 by Tim
    • Good For Sealing Flanges
Size: 1 Count (Pack of 1)
I searched for a long time before deciding on this product to provide an extra seal to my exhausts catalytic converter flange. The flange in front of the cat was leaking, and so I r&r'd the old bolts, and then I wire wheeled the mating surfaces. Despite this, there was still a decent bit of pitting, and this 'sealant' worked well to fill in any imperfections that were present. I did this roughly 6 months ago, and daily drive the vehicle - no leaks from the area that was patched. I even reused the old 'donut' gasket since I didn't want to spend any extra money or time on this repair. I would recommend this to anyone who is working on an older vehicle with a rusty exhaust, or to anyone who wants to exercise an abundance of caution when trying to prevent any exhaust leaks following a repair. ... show more
Reviewed in the United States on November 21, 2024 by Connor Wilson
    • Has a limited shelf life but works well
Size: 1 Count (Pack of 1)
The product itself is awesome. Seems anything I buy from Permatex does what it is supposed to do. For this particular "repair" I was a bit unsure as to which Permatex product to purchase. My motorcycle exhaust has a connection where the header pipe and tailpipe meet. An aftermarket "Jardine" exhaust and oddly quite a large gap at the connection whereas the bracket is supposed to crimp and does not do a very good job at sealing it. This may be how it was designed but for me an exhaust leak in your plan is not a good plan. Bottom line i wanted to seal this joint but wanted the option to take it apart to install new header gaskets down the line. Reaching out to Permatex they actually recommended a different product that was twice the cost of this with half the temp limit. I am happy I chose this as it sealed the joint and I was able to disconnect the pipes and install the gaskets. I am now looking to try a "lap joint" bracket as I would prefer a more permanent solution. I feel anything with the Permatex name is a good product but has limited shelf life and will eventually break down. The trouble is they make so many similar products it is hard to choose the correct one. In my opinion there is not one single best application for a particular project. Doing some research prior to buying is always recommended. ... show more
Reviewed in the United States on July 10, 2024 by mog703
    • Muffler sealant
Size: 1 Count (Pack of 1)
Works good on seams that leak on a muffler. Used all of it. Not expected to be permanent but, works as a great improvement for muffler leaks. Less expensive than replacing a muffler.
Reviewed in the United States on November 4, 2025 by S. Latham
    • Better then expected
Size: 1 Count (Pack of 1)
Great product. Strong, dries quickly and made in USA. Perfect.
Reviewed in the United States on November 4, 2025 by MAF
    • Works short term
Size: 1 Count (Pack of 1)
This is decent for a temporary patch. Please don't expect this to hold up long term but for short term repairs this does the job. Over time it crumbles away.
Reviewed in the United States on March 14, 2025 by Jack
    • Red stuff is Sticky ! Gray, not so sticky. Both work well. Red stuff is Sticky ! Gray, not so sticky. Both work well.
Size: 1 Count (Pack of 1)
Review Image by Dave
Whatever you do, don't get it on your skin. (The red stuff that is) I had to use mineral spirits to get it off (which I'm sure is a cancer risk in California. It's a good thing I don't live in California) Use a double layer of disposable gloves. Also, if you can't attach the flanges due to rusted bolt filled holes, go to harbor freight and buy the cheap mini vise grips, 1 for each side of the flanges. Lock 'em super tight and secure the handles with zip ties. (Our exhaust issue was that the muffler separated from the main pipe at the attachment flanges. UPDATE: I'm not positive that I reviewed the correct item. All I know is that it was red like the picture and really thick and sticky. A few weeks after this repair I sealed the top rear seam with a piece of a pop can, some steel window screen and the GRAY colored stuff, which comes off much more easily with soap and water. Sorry for the confusion. ... show more
Reviewed in the United States on May 2, 2023 Reviewed in the United States on May 2, 2023 by Dave
    • Great stuff
Size: 1 Count (Pack of 1)
I rebuilt a portion of my exhaust and I had two flanges that didn't meet together like they should which left a small gap at the bottom. It wasn't bad enough to cause an audible exhaust leak, but condensation would leak from it. I figured some exhaust sealant would be a quick fix as opposed to resetting and re-welding the flanges back on. I was a bit dismayed when I received the product and realized it's not epoxy or solvent based, so I wasn't sure how effective it would be. I went ahead and tried it following the directions and it worked absolutely fantastic. It goes on fairly smoothly-- sort of comes out in globs, but it's easy enough to work into a nice bead. Evidently it's made from some sort of clay, but it worked like magic and hardens almost like a super smooth cement. I don't see it coming off anytime soon. Instructions go something like this: wet the area apply the product wait 30 minutes start engine and let run for 10 minutes. After that engine running period it's pretty well cured by that point, but I'm certain within a couple hours you're good to go. I would definitely buy it again. ... show more
Reviewed in the United States on October 17, 2021 by Ashley Warren

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