---
product_id: 240602534
title: "S/S Permatex® - Ultra Red RTV Silicone Gasket Maker up to 650oF Sealant - 3 oz / 85g"
brand: "permatex"
price: "4942 som"
currency: KGS
in_stock: true
reviews_count: 5
category: "Permatex"
url: https://www.desertcart.kg/products/240602534-s-s-permatex-ultra-red-rtv-silicone-gasket-maker-up
store_origin: KG
region: Kyrgyzstan
---

# Oil & fluid resistant Withstands up to 650°F OEM Specified & Sensor-safe S/S Permatex® - Ultra Red RTV Silicone Gasket Maker up to 650oF Sealant - 3 oz / 85g

**Brand:** permatex
**Price:** 4942 som
**Availability:** ✅ In Stock

## Summary

> 🔥 Seal the deal with ultra heat resistance and pro-grade precision!

## Quick Answers

- **What is this?** S/S Permatex® - Ultra Red RTV Silicone Gasket Maker up to 650oF Sealant - 3 oz / 85g by permatex
- **How much does it cost?** 4942 som with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/240602534-s-s-permatex-ultra-red-rtv-silicone-gasket-maker-up)

## 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

- • **Clean & Safe Formula:** Low odor, non-corrosive, non-flammable, and non-toxic for a professional-grade workspace.
- • **Precision OEM Quality:** Meets original equipment specs ensuring flawless sensor-safe adhesion and flexibility.
- • **Versatile Application:** Use as a gasket maker or dressing—ideal for exhaust headers and pitted surfaces.
- • **Extreme Heat Endurance:** Seals tight even at 650°F intermittent heat—perfect for high-temp engine repairs.
- • **Durable Fluid Resistance:** Resists oils and common shop fluids to maintain a long-lasting, leak-proof seal.

## Overview

Permatex Ultra Red RTV Silicone Gasket Maker is a 3 oz high-temperature sealant designed for automotive repairs. It withstands intermittent heat up to 650°F, resists oils and fluids, and meets OEM specifications for sensor-safe, flexible, and durable gasket sealing—trusted by professionals for exhaust and engine rebuilds.

## Description

Permatex’s Ultra Red Gasket Maker is ideal for high temperature repairs. Its advanced formula retains a high temperature resistance while also remaining resistant to oils and common shop fluids. High temperature performance gasket – Dual resistance to high temperatures, oils and common shop fluids.

Review: This is a very good product that I have used for years re-building motors. Every new item they introduce is always a quality item. Really good for exhaust gasket sealer especially if you have older pitted exhaust headers.
Review: Excellent

## Features

- High temperature performance, adhesion and flexibility
- OEM Specified, Sensor-safe, low odor, non-corrosive
- Non-flammable, non-toxic
- Can be used as a gasket maker or dressing and meets performance specs of OE silicone gaskets
- Withstands up to 650°F (399°C) intermittent

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08CRY2BJB |
| Best Sellers Rank | 22,026 in Automotive ( See Top 100 in Automotive ) 199 in Fillers, Adhesives & Sealants |
| Brand | Permatex |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,805) |
| Date First Available | 20 Jun. 2020 |
| Exterior | Machined |
| Item Weight | 95.2 g |
| Item model number | 81630 |
| Manufacturer | Permatex |
| Manufacturer part number | 81630 |
| Model | Permatex Ultra Red High Temperature Gasket Maker 3 oz |
| Product Dimensions | 3.18 x 9.68 x 20.32 cm; 95.25 g |

## Product Details

- **Brand:** Permatex
- **Colour:** Ultra Red
- **Item thickness:** 0.2 Inches
- **Material:** Silicone
- **UPC:** 686226816306

## Images

![S/S Permatex® - Ultra Red RTV Silicone Gasket Maker up to 650oF Sealant - 3 oz / 85g - Image 1](https://m.media-amazon.com/images/I/81orsMg2uaL.jpg)

## Questions & Answers

**Q: can it be used on shingles**
A: Shingles on a roof, or shingles on your body? I'd suggest calling a roofer if you need to use this on your shingles. You can apply it to the shingles on your body then call the doctor in the morning. It will keep the shingles sealed and prevent leakage until you can get to the doctor.

**Q: is this food grade? or can i use this on ovens and BBQ grills? it will not directly touch the food but there is a chance that it will. thanks**
A: I sent an email to Permatex regarding the use of this specific RTV Silicone product (81160) to seal a gap in a steamer used in my sandwich shop (gap between 300 degree F steam generator basin and steamer housing).  Their response indicates that NONE of the Permatex products are certified food safe:

From: 	Permatex - Product Application <ProductApplication@Permatex.com> 
Sent: 	Monday, August 16, 2021 10:14 AM
To: 	Pete xxxxxxxxxxxxxxxxxxxxxxxxxxxx
Cc: 	Permatex - Answered <Answered@Permatex.com>
Subject: 	RE: New submission from Product Support Form

Pete,

Our products including the Red RTV Silicone is not FDA or NSF certified for indirect and direct food contact or for drinking water applications.

Don Sutliff
Senior Product Support Specialist
ITW Permatex, Inc.
6875 Parkland Blvd.
Solon, Ohio 44139

Apparently, Permatex is focused on automotive applications so food safe certification is not something they are concerned about.  There are other brands of RTV silicone sealers that are specifically high temp food grade , such as ASI 502 and Sil-Bond "Food Grade NSF FDA RTV Silicone Sealant Adhesive Red High Temp".

**Q: Is this compatible with differential fluid?**
A: Yes, 81160 is used on the differential cover.

**Q: Can I use red etc for interior application on a tin ceiling with exstream  heat from the Fl sun ?**
A: this is over kill but yes...
are you trying to seal a leek or just hold things up??
this is a sealer not a contact cement.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by B***D on 21 December 2025*

This is a very good product that I have used for years re-building motors. Every new item they introduce is always a quality item. Really good for exhaust gasket sealer especially if you have older pitted exhaust headers.

### ⭐⭐⭐⭐⭐ Review
*by R***O on 30 November 2024*

Excellent

### ⭐⭐⭐⭐⭐ Review
*by A***R on 30 December 2025*

Works Great

## Frequently Bought Together

- Permatex 81630 Ultra Red High Temperature 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 82194 Ultra Grey Rigid High-Torque RTV Silicone Gasket Maker, Sensor Safe And Non-Corrosive, For High Torque And Vibration Resistant Applications, 3 oz

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*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-01-24*