---
product_id: 233044910
title: "Permatex 34328 The Right Stuff 90 Minute Grey Gasket Maker 3 Oz."
brand: "permatex"
price: "$839"
currency: MXN
in_stock: true
reviews_count: 13
category: "Permatex"
url: https://www.desertcart.mx/products/233044910-permatex-34328-the-right-stuff-90-minute-grey-gasket-maker
store_origin: MX
region: Mexico
---

# 450°F continuous heat resistance High torque load durability 90-minute cure time Permatex 34328 The Right Stuff 90 Minute Grey Gasket Maker 3 Oz.

**Brand:** permatex
**Price:** $839
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal it fast, seal it right—because your engine deserves the best!

## Quick Answers

- **What is this?** Permatex 34328 The Right Stuff 90 Minute Grey Gasket Maker 3 Oz. by permatex
- **How much does it cost?** $839 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.mx](https://www.desertcart.mx/products/233044910-permatex-34328-the-right-stuff-90-minute-grey-gasket-maker)

## 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

- • **Sensor-Safe Formula:** Protect sensitive engine sensors while creating a durable elastomeric rubber gasket.
- • **Rapid 90-Minute Seal:** Get leakproof gaskets in just 90 minutes—no downtime, no delays.
- • **Engineered for High Torque:** Built to withstand the intense pressure of tightly spaced import engine bolts.
- • **Powertrain Fluid Resistant:** Defies oil, coolant, and ATF to keep your engine leak-free and running smooth.
- • **Extreme Temperature Toughness:** Performs flawlessly up to 450°F continuous and 500°F intermittent heat exposure.

## Overview

Permatex The Right Stuff 90 Minute Grey Gasket Maker is a high-performance, sensor-safe gasket sealant designed for engines with closely spaced bolts, especially imports. It cures quickly in 90 minutes, resists blowouts, and withstands extreme temperatures up to 450°F continuous. Resistant to powertrain fluids like oil, coolant, and ATF, it forms a durable elastomeric rubber gasket that outperforms precut gaskets, ensuring leakproof reliability in critical automotive applications.

## Description

Permatex The Right Stuff Grey Gasket Maker is designed to perform under the higher torque loads associated with engines that have closely spaced bolt patterns, such as those typically found in import vehicles. This product is blowout resistant, allowing leakproof gaskets to be made and put into service in just one minute. Sensor-safe, The Right Stuff Grey Gasket Maker seals instantly, forming a reliable, long-lasting elastomeric rubber gasket that outperforms precut gaskets. This product is resistant to powertrain fluids (oil, coolant, and ATF) and operates in environments to 450°F (232°C) continuous and 500°F (260°C) intermittent. Suggested Applications include automotive gaskets, valve covers, oil pans, transmission pans, thermostat housings, and water pumps.

Review: Works great to clean up a mess - Used Ultra Gray gasket maker on a job that was “definitely not that bad” and somehow leaking from everywhere. Slapped this stuff on, bolted it together, and now it’s tighter than my budget after buying tools I didn’t need. It sticks, it seals, and it doesn’t care how confident you were before you realized the gasket was toast. Oil stays in. Coolant stays where it belongs. No drips, no excuses. If you enjoy products that quietly make you look like you know what you’re doing, Ultra Gray is the hero you didn’t know you needed. Five stars.
Review: High Quality Product - This stuff really works well and can be used for more than just gaskets.

## Features

- Designed to perform under higher torque loads associated with engines that have closely spaced bolt patterns, such as those typically found in import vehicles
- Blowout resistant, allowing leakproof gaskets to be made and put into service in just 90 minute
- Sensor-safe, when it seals it forms a reliable, long lasting elastomeric rubber gasket that outperforms precut gaskets
- Resistant to powertrain fluids such as ATF, oil, and coolant
- Withstands temperatures to 450F continuous, and 500F intermittent

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08BQ5H3B9 |
| Batteries | 1 Unknown batteries required. |
| Best Sellers Rank | #331 in Automotive ( See Top 100 in Automotive ) #2 in Gasket Sealers |
| Brand | Permatex |
| Color | No Color |
| Date First Available | July 13, 2020 |
| Item Form | Liquid |
| Item Weight | 3.68 ounces |
| Item dimensions L x W x H | 1.5 x 3.9 x 8 inches |
| Item model number | 34328 |
| Manufacturer | Permatex |
| Material | Gasket Maker |
| Number of Items | 1 |
| Product Dimensions | 1.5 x 3.9 x 8 inches |
| Style | Compact |
| Surface Recommendation | Metal |
| UPC | 686226343284 |
| Unit Count | 1.0 Count |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** Permatex
- **Item Weight:** 0.23 Pounds
- **Item dimensions L x W x H:** 1.5 x 3.9 x 8 inches
- **Material:** Gasket Maker
- **Style:** Compact

## Images

![Permatex 34328 The Right Stuff 90 Minute Grey Gasket Maker 3 Oz. - Image 1](https://m.media-amazon.com/images/I/51VwyihHynL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great to clean up a mess
*by A***R on January 24, 2026*

Used Ultra Gray gasket maker on a job that was “definitely not that bad” and somehow leaking from everywhere. Slapped this stuff on, bolted it together, and now it’s tighter than my budget after buying tools I didn’t need. It sticks, it seals, and it doesn’t care how confident you were before you realized the gasket was toast. Oil stays in. Coolant stays where it belongs. No drips, no excuses. If you enjoy products that quietly make you look like you know what you’re doing, Ultra Gray is the hero you didn’t know you needed. Five stars.

### ⭐⭐⭐⭐⭐ High Quality Product
*by M***Z on January 28, 2026*

This stuff really works well and can be used for more than just gaskets.

### ⭐⭐⭐⭐⭐ A really good deal!!! Long-lasting if you cap the tube after use.
*by D***G on March 2, 2025*

If you're using this for a one-time application, you may want to opt for a smaller tube. However, if you use RTV a lot, this tube will last you a long time and the price is on-point. I saved quite a bit overall by just buying the bigger tube instead of smaller individual tubes. This is like that Granny's hot sauce- I use this s*** on everything! Very good stuff, you can cap the tube for reuse. Good high-temp RTV that resists oil and stuff. I've used it on applications like metal-to-plastic and the adhesion is great. The ease of use and thickness is also better than the smaller tubes in my opinion, because you can control the flow using any caulk gun of your choice. I recommend using a "finger" from nitrile gloves to cap the tube along with a wood screw or bolt. The only downside is it takes a while to cure compared to other similar RTVs (like "Great Stuff", etc). I used this to seal around a throttle body that had a snapped corner bolt on a bmw m50 motor, this was plastic-on-metal, and this RTV has held up for literally over 5 years so far with no signs of cracking or anything else. That's after hundreds or possibly thousands of heat cycles and exposure to CCV oils, etc. So yeah, It's very good.

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**Shop now:** [https://www.desertcart.mx/products/233044910-permatex-34328-the-right-stuff-90-minute-grey-gasket-maker](https://www.desertcart.mx/products/233044910-permatex-34328-the-right-stuff-90-minute-grey-gasket-maker)

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*Product available on Desertcart Mexico*
*Store origin: MX*
*Last updated: 2026-02-19*