---
product_id: 4200387
title: "Permatex 80335 Muffler and Tailpipe Sealer, 3 oz., Plastic"
brand: "permatex"
price: "£9.11"
currency: GBP
in_stock: true
reviews_count: 13
url: https://www.desertcart.co.uk/products/4200387-permatex-80335-muffler-and-tailpipe-sealer-3-oz-plastic
store_origin: GB
region: United Kingdom
---

# 100% Waterproof formula Withstands up to 2000°F Non-shrinking, shock resistant paste Permatex 80335 Muffler and Tailpipe Sealer, 3 oz., Plastic

**Brand:** permatex
**Price:** £9.11
**Availability:** ✅ In Stock

## Summary

> 🔥 Seal the deal, silence the leaks — drive worry-free with Permatex!

## Quick Answers

- **What is this?** Permatex 80335 Muffler and Tailpipe Sealer, 3 oz., Plastic by permatex
- **How much does it cost?** £9.11 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/4200387-permatex-80335-muffler-and-tailpipe-sealer-3-oz-plastic)

## Best For

- permatex enthusiasts

## Why This Product

- Trusted permatex brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Heat Warrior:** Handles scorching temperatures up to 2000°F (1000°C) without breaking a sweat.
- • **Built to Endure:** Shock resistant and non-shrinking paste ensures long-lasting durability under extreme conditions.
- • **Seal Like a Pro:** Effortlessly seals holes and leaks in mufflers, tailpipes, and joints for a leak-proof ride.
- • **Waterproof Confidence:** Keeps moisture out with a fully waterproof formula, perfect for all weather drives.
- • **Easy Application, Instant Peace of Mind:** Simple to apply and cures hard fast, making your exhaust repairs quick and reliable.

## Overview

Permatex 80335 Muffler and Tailpipe Sealer is a high-performance, waterproof paste designed to seal holes and leaks in exhaust systems. It withstands extreme temperatures up to 2000°F, resists shrinking and shock, and ensures durable, leak-free connections for mufflers, tailpipes, and joints. Trusted by professionals and DIYers alike, this 3 oz. compact tube delivers fast, reliable repairs that keep your vehicle running smoothly.

## 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.

Review: Easy to apply and dries/cures hard and adheres! - 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.
Review: Good For Sealing Flanges - 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.

## 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)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000BOAZM8 |
| Best Sellers Rank | #105,658 in Automotive ( See Top 100 in Automotive ) #127 in Body Repair & Restoration Adhesives |
| Brand | Permatex |
| Brand Name | Permatex |
| Color | white |
| Compatible Material | Plastic |
| Customer Reviews | 4.4 out of 5 stars 5,550 Reviews |
| Global Trade Identification Number | 00686226803351 |
| Included Components | Permatex 80335 Muffler and Tailpipe Sealer, 3 oz., Plastic, 1 Count (Pack of 1) |
| Item Dimensions | 8 x 4 x 2 inches |
| Item Form | Paste |
| Item Type Name | Permatex 80335 Muffler and Tailpipe Sealer, 3 oz., Plastic, 1 Count (Pack of 1) |
| Item Weight | 0.2 Pounds |
| Item dimensions L x W x H | 8 x 4 x 2 inches |
| Manufacturer | Permatex |
| Material | Stainless Steel |
| Material Type | Stainless Steel |
| Model | 80335 |
| Number of Items | 1 |
| Part Number | 80335 |
| Style | Compact |
| Style Name | Compact |
| Surface Recommendation | Miscellaneous |
| UPC | 686226803351 |
| Unit Count | 1.0 Count |
| Warranty Description | Warranty |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** Permatex
- **Item Form:** Paste
- **Material:** Stainless Steel
- **Special Feature:** Waterproof
- **Specific Uses For Product:** Fleet and plant maintenance.

## Images

![Permatex 80335 Muffler and Tailpipe Sealer, 3 oz., Plastic - Image 1](https://m.media-amazon.com/images/I/71otB61PxhL.jpg)
![Permatex 80335 Muffler and Tailpipe Sealer, 3 oz., Plastic - Image 2](https://m.media-amazon.com/images/I/71JVgNc8xyL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy to apply and dries/cures hard and adheres!
*by T***M on September 24, 2025*

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.

### ⭐⭐⭐⭐⭐ Good For Sealing Flanges
*by C***N on November 21, 2024*

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.

### ⭐⭐⭐⭐ Has a limited shelf life but works well
*by M***3 on July 10, 2024*

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.

## Frequently Bought Together

- Permatex 80335 Muffler and Tailpipe Sealer, 3 oz., Plastic, 1 Count (Pack of 1)
- EVIL ENERGY 2.5 Inch Exhaust Clamp,2 1/2" Butt Joint Band Clamp Sleeve Coupler Stainless Steel for Pipes,Mufflers,Catalytic Converters 1PCS
- J-B Weld ExhaustWeld 2" x 72" Repair Wrap, White

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-06-12*