---
product_id: 461338331
title: "Permatex 81422 Sensor-Safe High-Temp RTV Silicone Gasket Maker, 3 oz."
brand: "permatex"
price: "$121.53"
currency: USD
in_stock: false
reviews_count: 5
category: "Permatex"
url: https://www.desertcart.ec/products/461338331-permatex-81422-sensor-safe-high-temp-rtv-silicone-gasket-maker
store_origin: EC
region: Ecuador
---

# Resistant to auto & shop fluids Temp range -65°F to 650°F Oxygen sensor safe formula Permatex 81422 Sensor-Safe High-Temp RTV Silicone Gasket Maker, 3 oz.

**Brand:** permatex
**Price:** $121.53
**Availability:** ❌ Out of Stock

## Summary

> 🛠️ Seal the deal with sensor-safe strength — don’t let leaks slow your ride!

## Quick Answers

- **What is this?** Permatex 81422 Sensor-Safe High-Temp RTV Silicone Gasket Maker, 3 oz. by permatex
- **How much does it cost?** $121.53 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/461338331-permatex-81422-sensor-safe-high-temp-rtv-silicone-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

- • **Compact & Ready to Use:** 3 oz tube fits easily in your toolkit for quick, professional-grade gasket repairs anytime.
- • **Fluid-Resistant Durability:** Resists automotive and shop fluids to keep your seals intact and leak-free under pressure.
- • **Versatile Application Power:** Perfect for valve covers, oil pans, timing covers, water pumps, and more — one tube, endless fixes.
- • **Engineered for Sensor Safety:** Protect your oxygen sensors with a GM-approved formula designed for modern engines.
- • **Extreme Temperature Endurance:** Withstands brutal heat from -65°F up to 650°F intermittent — built for the toughest rides.

## Overview

Permatex 81422 Sensor-Safe High-Temp RTV Silicone Gasket Maker is a GM-approved, oxygen sensor-safe silicone sealant designed to withstand extreme temperatures from -65°F to 650°F intermittent. Ideal for automotive gasket repairs on valve covers, oil pans, timing covers, and more, it resists automotive fluids to ensure durable, leak-proof seals. Compact and reliable, it’s a must-have for professional-grade engine maintenance.

## Description

81422 Features: -Gasket maker. -Material: Silicone. -Special formula is General Motors approved. -Low volatile. Generic Dimensions: -8" H x 3.63" W x 1.63" D, 0.33 lb. Dimensions: Overall Height - Top to Bottom: -8 Inches. Overall Width - Side to Side: -3.63 Inches. Overall Depth - Front to Back: -1.63 Inches. Overall Product Weight: -0.33 Pounds.

Review: Good value
Review: Works as it said it would

## Features

- Specially formulated for engines equipped with oxygen sensors
- Temperature range: -65F to 650F intermittent
- First generation 1970-1980 gasket maker
- Suggested Applications: valve covers, oil pans, timing covers, water pumps, thermostat housings and transmission pans
- Resistant to auto and shop fluids

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000AANXHC |
| Are batteries included? | No |
| Brand | Permatex |
| Colour | plastic |
| Country of Origin | USA |
| Customer Reviews | 4.6 4.6 out of 5 stars (78) |
| Date First Available | 7 August 2012 |
| Global Trade Identification Number | 00686226814227 |
| Item Dimensions LxWxH | 32 x 97 x 203 Millimeters |
| Item Form | Liquid |
| Item Height | 8 Inches |
| Item Weight | 80 g |
| Item Width | 3.81 Inches |
| Item model number | 81422 |
| Manufacturer | Permatex |
| Material | Silicone |
| Model number | 81422 |
| Net Quantity | 1.0 Count |
| Number of Items | 1 |
| Product Dimensions | 3.18 x 9.68 x 20.32 cm; 80 g |
| Surface Recommendation | Miscellaneous |
| UPC | 686226814227 |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** Permatex
- **Colour:** plastic
- **Item Form:** Liquid
- **Item Weight:** 0.08 Kilograms
- **Surface Recommendation:** Miscellaneous

## Images

![Permatex 81422 Sensor-Safe High-Temp RTV Silicone Gasket Maker, 3 oz. - Image 1](https://m.media-amazon.com/images/I/410QplJRuoL.jpg)
![Permatex 81422 Sensor-Safe High-Temp RTV Silicone Gasket Maker, 3 oz. - Image 2](https://m.media-amazon.com/images/I/81T4FYd0AGL.jpg)

## Questions & Answers

**Q: Is this resistant to methanol?**
A: No

**Q: I want to use this on my valve cover instead of a premade gasket. How thick should this be when putting it on?**
A: It should cover the lining on the valve cover itself then put a extra thin layer. And put it also on where the valve cover sits so itll even out. Doing this will make your valve cover stuck onto your head and you cant remove it unless you use a box cutter nife. Thats if your planning to remove it later.

**Q: Well this permatex 81422 adhere to glass**
A: Permatex 81422 Sensor-Safe High-Temp RTV Silicone Gasket Maker does not adhere to glass. It is designed to adhere to metal, plastic, and rubber surfaces.

**Q: What color is the silicone?**
A: The Permatex 81422 is Orange in color. Used it to seal a Toyota Prius Torque Split Device(Essentially the Transmission MG2 Case, which gets V/Hot while driving)Works great ...

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by D***S on 3 January 2026*

Good value

### ⭐⭐⭐⭐⭐ Review
*by I***M on 1 February 2025*

Works as it said it would

### ⭐⭐⭐⭐⭐ Review
*by J***H on 23 September 2024*

Oxygen sensor safe. On time, right product.

## Frequently Bought Together

- Permatex 81422 Sensor-Safe High-Temp RTV Silicone Gasket Maker, 3 oz.
- Permatex 85080 Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker, Sensor Safe And Non-Corrosive, For High Flex And Oil Resistant Applications 9.5 oz
- Permatex 80050 Clear RTV Silicone Adhesive Sealant, 3 oz

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**Shop now:** [https://www.desertcart.ec/products/461338331-permatex-81422-sensor-safe-high-temp-rtv-silicone-gasket-maker](https://www.desertcart.ec/products/461338331-permatex-81422-sensor-safe-high-temp-rtv-silicone-gasket-maker)

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-01-25*