---
product_id: 240602534
title: "S/S Permatex® - Ultra Red RTV Silicone Gasket Maker up to 650oF Sealant - 3 oz / 85g"
brand: "permatex"
price: "₨11433"
currency: LKR
in_stock: true
reviews_count: 5
category: "Permatex"
url: https://www.desertcart.lk/products/240602534-s-s-permatex-ultra-red-rtv-silicone-gasket-maker-up
store_origin: LK
region: Sri Lanka
---

# Resistant to oils and common shop fluids Withstands up to 650°F intermittent heat OEM specified, sensor-safe, and non-corrosive S/S Permatex® - Ultra Red RTV Silicone Gasket Maker up to 650oF Sealant - 3 oz / 85g

**Brand:** permatex
**Price:** ₨11433
**Availability:** ✅ In Stock

## Summary

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

## 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?** ₨11433 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/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

- • **Trusted by Pros:** 4.7-star rating with thousands of satisfied users ⭐
- • **Low Odor & Non-Toxic:** Safe to use in any workspace without harsh fumes🌿
- • **Precision OEM Quality:** Sensor-safe and non-corrosive for flawless performance🛠️
- • **Versatile Application:** Use as gasket maker or dressing with OE silicone specs💧
- • **Extreme Heat Endurance:** Keeps your engine sealed even at 650°F🔥

## Overview

Permatex Ultra Red RTV Silicone Gasket Maker is a high-performance, sensor-safe sealant designed for extreme temperatures up to 650°F. Its advanced formula resists oils, shop fluids, and corrosion, making it ideal for professional-grade automotive repairs. This 3 oz tube meets OEM specifications and offers low odor, non-toxic, and non-flammable properties, ensuring safe and reliable use in demanding environments.

## 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: It works great at a nice price.
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 | 15,618 in Automotive ( See Top 100 in Automotive ) 168 in Fillers, Adhesives & Sealants |
| Brand | Permatex |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,839) |
| 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)

## Available Options

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

## 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 M***N on 27 January 2026*

It works great at a nice price.

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

Excellent

### ⭐⭐⭐⭐⭐ 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.

## 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 Sri Lanka*
*Store origin: LK*
*Last updated: 2026-03-09*