---
product_id: 19836839
title: "ProSeal Red RTV Silicone Hi-Temp Instant Gasket, 3 oz Tube, High-Temperature Sensor Safe Sealant, Bonds, Seals & Insulates, Replaces Cut Gaskets"
brand: "pro seal"
price: "80.54 DT"
currency: TND
in_stock: true
reviews_count: 5
url: https://www.desertcart.tn/products/19836839-proseal-red-rtv-silicone-hi-temp-instant-gasket-3-oz
store_origin: TN
region: Tunisia
---

# Handles up to 5,000 PSI pressure Withstands extreme heat up to 600°F+ Sensor-safe for modern vehicle electronics ProSeal Red RTV Silicone Hi-Temp Instant Gasket, 3 oz Tube, High-Temperature Sensor Safe Sealant, Bonds, Seals & Insulates, Replaces Cut Gaskets

**Brand:** pro seal
**Price:** 80.54 DT
**Availability:** ✅ In Stock

## Summary

> 🔥 Seal like a pro, drive with confidence! 🚗

## Quick Answers

- **What is this?** ProSeal Red RTV Silicone Hi-Temp Instant Gasket, 3 oz Tube, High-Temperature Sensor Safe Sealant, Bonds, Seals & Insulates, Replaces Cut Gaskets by pro seal
- **How much does it cost?** 80.54 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/19836839-proseal-red-rtv-silicone-hi-temp-instant-gasket-3-oz)

## Best For

- pro seal enthusiasts

## Why This Product

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

## Key Features

- • **Sensor-Safe Formula:** Compatible with sensitive vehicle sensors and electronics, protecting your car’s advanced systems.
- • **Extreme Heat Resilience:** Engineered to endure intense temperatures without breaking down, perfect for exhaust and engine repairs.
- • **Flexible & Durable Seal:** Dries tough yet flexible to prevent cracking, shrinking, or leaks over time, maintaining a reliable gasket replacement.
- • **Chemical & Fluid Resistance:** Resists oil, grease, antifreeze, brake, and transmission fluids for long-lasting protection.
- • **Unmatched Pressure Strength:** Seals tight under high pressure up to 5,000 PSI, ensuring leak-proof performance in demanding conditions.

## Overview

ProSeal Red RTV Silicone Hi-Temp Instant Gasket is a high-performance, sensor-safe sealant designed for automotive repairs. It withstands extreme heat and pressures up to 5,000 PSI, providing a flexible, durable, and chemical-resistant seal that replaces traditional cut gaskets. Ideal for modern vehicles, it ensures leak-proof performance on exhaust manifolds, valve covers, and more.

## Description

ProSeal Red RTV Silicone Hi-Temp Instant Gasket delivers durable, flexible sealing for high-temperature automotive repairs. Engineered for modern vehicles and sensitive components, it withstands pressures up to 5,000 PSI while resisting oil, grease, antifreeze, and transmission fluids. Perfect for exhaust manifolds, timing chain covers, valve covers, and other high-heat applications, this hi-temp silicone forms a reliable, long-lasting seal that won’t shrink, crack, or leak under extreme temperatures and vibration. Ideal for DIY mechanics and professional automotive repairs.

Review: Liquid gasket - Item arrived on time, came with a tip. Worked perfectly!
Review: Awesome Exhaust Sealer - Awesome Exhaust Sealer Very soft for a change and easy to use.. applied a bead around my zoomy headers and worked great

## Features

- HI-TEMP SILICONE GASKET: Withstands extreme heat for automotive repairs including exhaust manifolds, timing chain covers, and valve covers.
- SENSOR SAFE & VEHICLE COMPATIBLE: Formulated for all modern vehicles and safe on sensitive computer sensors and electronics.
- HIGH PRESSURE RESISTANCE: Handles up to 5,000 PSI for high-performance engines and demanding applications.
- FLEXIBLE & DURABLE SEAL: Dries tough yet flexible to prevent cracking, shrinking, or leaks over time.
- FLUID & CHEMICAL RESISTANT: Protects against oil, grease, antifreeze, brake fluid, and transmission fluids.
- VERSATILE AUTOMOTIVE USE: Ideal for gaskets, repairs, engine sealing, and other high-temperature automotive projects.
- LEAK-PROOF PERFORMANCE: Maintains a secure seal against vibration, thermal expansion, and extreme temperature fluctuations.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00TN7EF0C |
| Best Sellers Rank | #289,616 in Automotive ( See Top 100 in Automotive ) #61 in Silicone Sealers |
| Brand | Pro Seal |
| Brand Name | Pro Seal |
| Color | Red |
| Customer Reviews | 4.7 out of 5 stars 9 Reviews |
| Item Form | Oz |
| Liquid Volume | 3 fluid ounces |
| Manufacturer | Pro Seal |
| Material Type | Silicone |
| Model | 11720078 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | 80726 |
| UPC | 050291807260 |
| Unit Count | 3 Fluid Ounces |
| Water Resistance Level | Waterproof |

## Images

![ProSeal Red RTV Silicone Hi-Temp Instant Gasket, 3 oz Tube, High-Temperature Sensor Safe Sealant, Bonds, Seals & Insulates, Replaces Cut Gaskets - Image 1](https://m.media-amazon.com/images/I/71NVtDeXIYL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Liquid gasket
*by G***A on June 21, 2026*

Item arrived on time, came with a tip. Worked perfectly!

### ⭐⭐⭐⭐⭐ Awesome Exhaust Sealer
*by H***R on April 14, 2026*

Awesome Exhaust Sealer Very soft for a change and easy to use.. applied a bead around my zoomy headers and worked great

### ⭐⭐⭐ ok sealant - still leaks after repair using this sealant
*by C***. on June 1, 2026*

Used this sealant when replacing valve cover gaskets on V6 engine. New gaskets were silicone and formed specifically for my specific engine. After repair, one valve cover still leaks engine oil slightly even though I put a sufficient amount of this sealant. It certainly leaks a lot less when compared to before the repair job but I am disappointed this sealant did not completely prevent leaks. Does not stick to clean metal surfaces at all. This will make cleanup easy the next time I replace the gaskets but I wonder if this is also why it still leaks a little.

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**Shop now:** [https://www.desertcart.tn/products/19836839-proseal-red-rtv-silicone-hi-temp-instant-gasket-3-oz](https://www.desertcart.tn/products/19836839-proseal-red-rtv-silicone-hi-temp-instant-gasket-3-oz)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-09-12*