---
product_id: 362616524
title: "85420 Permashield Fuel Resistant Gasket Dressing & Sealant, 2 oz Tube, Orange"
brand: "permatex"
price: "$46.38"
currency: USD
in_stock: true
reviews_count: 5
category: "Permatex"
url: https://www.desertcart.us/products/362616524-85420-permashield-fuel-resistant-gasket-dressing-and-sealant-2-oz
store_origin: US
region: United States of America
---

# Fuel & fluid resistant Withstands -60°F to 500°F Reusable metal-to-metal seal 85420 Permashield Fuel Resistant Gasket Dressing & Sealant, 2 oz Tube, Orange

**Brand:** permatex
**Price:** $46.38
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal it once, trust it forever—fuel resistance that never quits!

## Quick Answers

- **What is this?** 85420 Permashield Fuel Resistant Gasket Dressing & Sealant, 2 oz Tube, Orange by permatex
- **How much does it cost?** $46.38 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/362616524-85420-permashield-fuel-resistant-gasket-dressing-and-sealant-2-oz)

## 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

- • **Reusable & Reliable:** Allows repeated disassembly without losing sealing power—no gasket needed.
- • **Universal Application:** Perfect for cars, trucks, boats, lawn mowers, and more—your go-to sealant for every engine.
- • **Vibration-Proof Formula:** Tacky, vibration-resistant sealant ensures long-lasting, leak-free performance.
- • **Unmatched Fuel Resistance:** Seals out gasoline and all automotive fluids for ultimate protection.
- • **Extreme Temperature Flexibility:** Stays flexible from freezing cold to scorching heat (-60°F to 500°F).

## Overview

Permatex 85420 Permashield is a high-performance polyester urethane gasket dressing and sealant designed to resist gasoline and automotive fluids. It remains flexible across extreme temperatures (-60°F to 500°F), enabling repeated metal-to-metal assembly without gasket replacement. Its vibration-resistant, tacky formula provides unlimited assembly time and reliable sealing for a wide range of vehicles and machinery.

## Description

Permatex PermaShield Fuel Resistant Gasket Dressing and Sealant is a polyester urethane sealant with strong resistance to gasoline and all other automotive fluids, making it excellent for a variety of applications, including oil pans, axle assemblies and fuel injectors. This sealant remains flexible even at high temperatures, with a temperature range of -60 degrees Fahrenheit to 500 degrees Fahrenheit, which allows for repeated disassembly and resassembly in metal to metal applications. Versatile and vibration resistant, this tacky formula allows for unlimited assembly time and stays tacky for repeated use without reapplication. Ideal for use on cars, trucks, boats, tractors, snowmobiles, engines, lawn mowers and chainsaws.

Review: 使い勝手よかったです。
Review: Outstanding metal to metal contact sealer. I sure had doubts though. But it turned out perfectly. No gasket required. It really doesn’t fully cure and seals out fuel like it was the plague. Woulda been a game changer in the late 70’s for me. lOl

## Features

- Resistant to gasoline and all other automotive fluids
- Remains flexible even at high temperatures and withstands rapid temperature changes
- Allows for repeated disassembly and resassembly in metal to metal applications
- Versatile and vibration resistant, this tacky formula allows for unlimited assembly time
- Seals surface imperfections

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B007VIGCJW |
| ASIN  | B007VIGCJW |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #27,537 in Automotive ( See Top 100 in Automotive ) #118 in Automotive Fillers, Adhesives & Sealants |
| Color | Orange |
| Customer Reviews | 4.6 4.6 out of 5 stars (752) |
| Customer reviews | 4.6 4.6 out of 5 stars (752) |
| Date First Available | 14 March 2013 |
| Date First Available  | 14 March 2013 |
| Is Discontinued By Manufacturer  | No |
| Item Package Quantity | 1 |
| Item Weight | 81.6 g |
| Item model number | 85420 |
| Item model number  | 85420 |
| Manufacturer | Permatex |
| Manufacturer  | Permatex |
| Material | Synthetic Rubber |
| Part number | 85420 |
| Size | 2 Ounce |
| Style | Classic |

## Product Details

- **Brand:** Permatex
- **Item weight:** 82 g
- **Material:** Synthetic Rubber
- **Style:** Classic
- **Water resistance level:** Water Resistant

## Images

![85420 Permashield Fuel Resistant Gasket Dressing & Sealant, 2 oz Tube, Orange - Image 1](https://m.media-amazon.com/images/I/81ktDr2hakL.jpg)

## Questions & Answers

**Q: Can this be used to repair a hairline crack on a plastic stem for a quick connect fuel line?**
A: Michael, I really don't know, but I doubt it. This is not a hardening substance like JB weld. It stays flexible so that parts can be taken back apart again if needed. I would think that just covering the crack in your quick connect line would not be effective. I have only used this product one time so I'm not the voice of experience. My application was to seal between a motorcycle fuel tank and the gasket of the petcock and around the hold down bolts. So far no leaks. However, mechanically for your issue, this does not seem like the proper application as it would not fortify the crack. For the cost of this tube you could source another quick connect. Hope that helps

**Q: will this work as a gasket for a carb bowl gasket?**
A: I would not recommend it, or any other liquid gasket material on any carb connections.

**Q: Will this seal the bolts in my triumph speed triples gas tank.?**
A: Used it on the threads for my pressure regulator fittings and my fuel pump fittings so far no leaks

**Q: Will this work in combination with a fuel pump gasket ?**
A: I used it to seal a plastic spout to a mounting ring for a 5 gallon gas can.  The spout came from another gas can and I cut it to size. Unfortunately it wouldn't seal, until I added a bead between the two components. I let it dry for about a week when it hardened. It's worked for at least 2 years without any leaks. Good stuff!

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by き***。 on 25 December 2024*

使い勝手よかったです。

### ⭐⭐⭐⭐⭐ Review
*by J***C on 23 October 2025*

Outstanding metal to metal contact sealer. I sure had doubts though. But it turned out perfectly. No gasket required. It really doesn’t fully cure and seals out fuel like it was the plague. Woulda been a game changer in the late 70’s for me. lOl

### ⭐⭐⭐⭐⭐ Review
*by T***Z on 15 July 2024*

Well it stopped my ultralight aircraft from dumping 80 litres of fuel onto the hanger floor, so I guess it's doing it's job.

## Frequently Bought Together

- Permatex 85420 Permashield Fuel Resistant Gasket Dressing & Sealant, 2 oz Tube, Orange
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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-06*