---
product_id: 461338331
title: "Permatex 81422 Sensor-Safe High-Temp RTV Silicone Gasket Maker, 3 oz."
brand: "permatex"
price: "₨24898"
currency: LKR
in_stock: false
reviews_count: 5
category: "Permatex"
url: https://www.desertcart.lk/products/461338331-permatex-81422-sensor-safe-high-temp-rtv-silicone-gasket-maker
store_origin: LK
region: Sri Lanka
---

# 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:** ₨24898
**Availability:** ❌ Out of Stock

## Summary

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

## Quick Answers

- **What is this?** Permatex 81422 Sensor-Safe High-Temp RTV Silicone Gasket Maker, 3 oz. by permatex
- **How much does it cost?** ₨24898 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/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

- • **Fluids? No Problem!:** Resistant to automotive and shop fluids, keeping your seals intact and your engine leak-free.
- • **Trusted OEM Quality:** General Motors approved formula means professional-grade reliability you can count on.
- • **Versatile Application Power:** Perfect for valve covers, oil pans, timing covers, water pumps, and more — one tube, endless fixes.
- • **Engineered for Sensor Safety:** Specially formulated to protect sensitive oxygen sensors, ensuring flawless engine performance.
- • **Extreme Temperature Endurance:** Withstands from freezing -65°F up to scorching 650°F intermittent heat — built for the toughest rides.

## Overview

Permatex 81422 Sensor-Safe High-Temp RTV Silicone Gasket Maker is a professional-grade, oxygen sensor-safe silicone sealant designed for automotive engines. It endures extreme temperatures from -65°F to 650°F intermittent, resists automotive fluids, and is approved by General Motors. Ideal for valve covers, oil pans, timing covers, and more, this 3 oz. tube delivers durable, leak-proof seals trusted by mechanics and enthusiasts alike.

## 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: Works as it should, good price compared to auto parts store which is double the price if you buy from them
Review: Good value

## 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 (79) |
| 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 |
| Liquid Volume | 3 Fluid Ounces |
| 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
- **Liquid Volume:** 3 Fluid Ounces

## 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 T***. on 24 January 2026*

Works as it should, good price compared to auto parts store which is double the price if you buy from them

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

Good value

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

Works as it said it would

## 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.lk/products/461338331-permatex-81422-sensor-safe-high-temp-rtv-silicone-gasket-maker](https://www.desertcart.lk/products/461338331-permatex-81422-sensor-safe-high-temp-rtv-silicone-gasket-maker)

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-02-07*