---
product_id: 250431254
title: "Permatex 81409 High-Temp Red RTV Silicone Gasket, 11 oz."
brand: "permatex"
price: "$198"
currency: NZD
in_stock: true
reviews_count: 5
category: "Permatex"
url: https://www.desertcart.nz/products/250431254-permatex-81409-high-temp-red-rtv-silicone-gasket-11-oz
store_origin: NZ
region: New Zealand
---

# Permatex 81409 High-Temp Red RTV Silicone Gasket, 11 oz.

**Brand:** permatex
**Price:** $198
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Permatex 81409 High-Temp Red RTV Silicone Gasket, 11 oz. by permatex
- **How much does it cost?** $198 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/250431254-permatex-81409-high-temp-red-rtv-silicone-gasket-11-oz)

## Best For

- permatex enthusiasts

## Why This Product

- Trusted permatex brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Review: Durability
Review: really sticks

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000HBIB80 |
| Best Sellers Rank | #186,536 in Car & Motorbike ( See Top 100 in Car & Motorbike ) #165 in Fillers, Adhesives & Sealants |
| Brand | Permatex |
| Brand Name | Permatex |
| Colour | Red |
| Customer Reviews | 4.6 out of 5 stars 253 Reviews |
| Full Cure Time | 24 Hours |
| Global Trade Identification Number | 00686226814098 |
| Initial Hardening Time | one Hours |
| Item Form | Liquid |
| Item Weight | 181 g |
| Liquid Volume | 11 Fluid Ounces |
| Manufacturer | Permatex |
| Material Type | Silicone |
| Maximum Gap Fill | 6 Millimetres |
| Size of liquid in ounces | 11 Fluid Ounces |
| Surface Recommendation | Clean Dry Surfaces like Valve covers, oil pans, timing covers, water pumps, and thermostat housings |
| UPC | 686226814098 |
| Unit Count | 11.0 Ounce |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** Permatex
- **Colour:** Red
- **Full Cure Time:** 24 Hours
- **Item Weight:** 0.4 Pounds
- **Liquid Volume:** 11 Fluid Ounces

## Images

![Permatex 81409 High-Temp Red RTV Silicone Gasket, 11 oz. - Image 1](https://m.media-amazon.com/images/I/51W8qNlFSML.jpg)
![Permatex 81409 High-Temp Red RTV Silicone Gasket, 11 oz. - Image 2](https://m.media-amazon.com/images/I/61V6b3fcKtL.jpg)
![Permatex 81409 High-Temp Red RTV Silicone Gasket, 11 oz. - Image 3](https://m.media-amazon.com/images/I/711IoyHc08L.jpg)
![Permatex 81409 High-Temp Red RTV Silicone Gasket, 11 oz. - Image 4](https://m.media-amazon.com/images/I/71aWwbVU1jL.jpg)

## Questions & Answers

**Q: would gasoline eat it? Wondered if it could fix a gas line.**
A: Yes - gas would eat it, the only thing that will fix a gas line is a new one....

**Q: Is this rear differential lubricant compatible?**
A: Permatex 81409 High Temp Red RTV is a Sealant. It is one the most widely used gasket compounds. Made from silicone, RTV is air curing, it seals, bonds waterproofs, fills surface irregularities, remains flexible, doesn't shrink, is relatively easy to remove, and is used as supplementary sealer with almost all low and medium temperature gaskets. It used on the gasket or gaskets of differential. Compatible is not in question because it used on the gasket or gaskets which are outside the flange of differential. I hope that this answer your question. Please let me know if this helps.

**Q: Can I seal a knife cut on a rubber roller on a laminator**
A: I was told by my furnace repair man that this is a 5 star

**Q: Will this product adhear to Cast Iron?**
A: Yes

## Customer Reviews

### ⭐⭐⭐⭐⭐ Durability
*by S***E on 29 January 2024*



### ⭐⭐⭐⭐⭐ really sticks
*by J***M on 13 October 2018*



### ⭐⭐⭐⭐⭐ Exactly as Advertised and Cheap
*by M***L on 22 August 2023*



## Frequently Bought Together

- Permatex 81409 High-Temp Red RTV Silicone Gasket, 11 oz.
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**Shop now:** [https://www.desertcart.nz/products/250431254-permatex-81409-high-temp-red-rtv-silicone-gasket-11-oz](https://www.desertcart.nz/products/250431254-permatex-81409-high-temp-red-rtv-silicone-gasket-11-oz)

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-03-03*