---
product_id: 223608921
title: "Optimum Red"
brand: "permatex"
price: "EC$72"
currency: XCD
in_stock: true
reviews_count: 10
category: "Permatex"
url: https://grenada.desertcart.com/products/223608921-optimum-red
store_origin: GD
region: Grenada
---

# Non-toxic, low odor, non-flammable Withstands up to 750°F intermittent heat OEM specified, sensor-safe silicone formula Optimum Red

**Brand:** permatex
**Price:** EC$72
**Availability:** ✅ In Stock

## Summary

> 🔥 Seal the heat, own the street!

## Quick Answers

- **What is this?** Optimum Red by permatex
- **How much does it cost?** EC$72 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [grenada.desertcart.com](https://grenada.desertcart.com/products/223608921-optimum-red)

## 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

- • **Safe & Clean Use:** Low odor, non-corrosive, non-toxic, and non-flammable for a safer workspace
- • **Durable Flexibility:** Resists aging, weathering, and thermal cycling for a long-lasting seal
- • **Versatile Application:** Perfect for headers, manifolds, slip-fit exhausts, and gasket dressing
- • **Extreme Heat Resistance:** Handles turbocharged engines and exhaust parts without cracking or shrinking
- • **Professional Grade Seal:** OEM specified for reliable, sensor-safe performance on critical engine components

## Overview

Permatex 27038 Optimum Red is a premium silicone gasket maker designed for professionals and serious DIYers. It withstands extreme temperatures up to 750°F, resists cracking and shrinking, and meets OEM specs for sensor-safe, durable sealing on headers, manifolds, and turbocharged parts. Non-toxic and low odor, it ensures a clean, safe application every time.

## Description

Permatex’s NEW Optimum Red is an advanced maximum performance, max temperature RTV gasket maker. It resists aging, weathering and thermal cycling without hardening, shrinking or cracking. Premium professional gasket maker for today’s fast-paced heavy DIY’er and professional mechanics’ seeking a maximum temperature solution to withstand extreme temperatures up to 750°F (399°C) intermittent.

Review: Permanent high temp red - Does a super job. No complaints
Review: It's great. - This is good sealant.

## Features

- Maximum temperature performance
- 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
- Top Job Applications: Header, manifold, slip-fit exhaust parts, turbocharge and withstands up to 750°F (399°C) intermittent

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08CRYCZ91 |
| Best Sellers Rank | #1,211 in Automotive ( See Top 100 in Automotive ) #3 in Gasket Sealers #1,429 in Oils & Fluids |
| Brand | Permatex |
| Brand Name | Permatex |
| Color | Optimum Red |
| Customer Reviews | 4.7 out of 5 stars 446 Reviews |
| EU Spare Part Availability Duration | 5 years |
| Included Components | Optimum Red High Temperature Gasket Maker |
| Item Thickness | 0.2 inches |
| Item Type Name | Permatex Optimum Red High Temperature Gasket Maker 3.35 oz |
| Manufacturer | Permatex |
| Material | Silicone |
| Material Type | Silicone |
| Model | 27038 |
| Number of Items | 1 |
| Part Number | 27038 |
| UPC | 686226987631 686226270382 |
| Unit Count | 1 Count |
| Upper Temperature Rating | 750 °F |

## Product Details

- **Brand:** Permatex
- **Color:** Optimum Red
- **Item Thickness:** 0.2 inches
- **Material:** Silicone
- **Upper Temperature Rating:** 750 °F

## Images

![Optimum Red - Image 1](https://m.media-amazon.com/images/I/813a9mGj4BL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Permanent high temp red
*by R***D on July 11, 2026*

Does a super job. No complaints

### ⭐⭐⭐⭐⭐ It's great.
*by G***Y on July 16, 2026*

This is good sealant.

### ⭐⭐⭐⭐⭐ Great quality and great price
*by M***X on April 27, 2026*

This stuff always works great !

## Frequently Bought Together

- Permatex 27038 Optimum 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 81878 Ultra Copper Maximum Temperature RTV Silicone Gasket Maker, 3 oz. Tube

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**Shop now:** [https://grenada.desertcart.com/products/223608921-optimum-red](https://grenada.desertcart.com/products/223608921-optimum-red)

---

*Product available on Desertcart Grenada*
*Store origin: GD*
*Last updated: 2026-10-05*