--- product_id: 337736440 title: "27038 Optimum Red High Temperature Gasket Maker 3.35 oz" brand: "permatex" price: "72.95 DT" currency: TND in_stock: true reviews_count: 5 category: "Permatex" url: https://www.desertcart.tn/products/337736440-27038-optimum-red-high-temperature-gasket-maker-3-35-oz store_origin: TN region: Tunisia --- # Low odor, non-flammable & non-toxic formula Withstands up to 750°F intermittent heat OEM specified, sensor-safe & non-corrosive 27038 Optimum Red High Temperature Gasket Maker 3.35 oz **Brand:** permatex **Price:** 72.95 DT **Availability:** ✅ In Stock ## Summary > 🔥 Seal the deal with Permatex Optimum Red – where performance meets precision! ## Quick Answers - **What is this?** 27038 Optimum Red High Temperature Gasket Maker 3.35 oz by permatex - **How much does it cost?** 72.95 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/337736440-27038-optimum-red-high-temperature-gasket-maker-3-35-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 ## Key Features - • **Versatile Use Cases:** Perfect for headers, manifolds, turbochargers, and slip-fit exhaust parts - • **Durability Meets Speed:** Resists aging and thermal cycling—ideal for fast-paced pros and DIYers - • **Extreme Heat Resistance:** Handles engine temps up to 750°F without cracking or shrinking - • **Professional Grade Seal:** OEM specified for reliable, sensor-safe gasket performance - • **Clean & Safe Application:** Low odor, non-toxic, and non-flammable for hassle-free use ## Overview Permatex 27038 Optimum Red is a premium silicone gasket maker designed for extreme temperature environments up to 750°F. It offers OEM-specified, sensor-safe sealing with a low odor, non-toxic, and non-flammable formula. Ideal for automotive professionals and serious DIYers, it ensures durable, crack-resistant seals on headers, manifolds, and turbochargers, delivering reliable performance under intense thermal cycling. ## 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: Not sure what is up with the toothpaste tubes but the caps all brake now. They also always get holes in them and dry out. Tired of messing with that so got these cans. One came with a broke nozzle but it is still useable. pretty easy to use and less mess than the toothpaste tubes. Review: I recently used the Permatex 27038 Optimum Red RTV Silicone to install my intake manifold, and I’m incredibly impressed with its performance! This silicone sealant was very simple to use, applying smoothly and evenly without any mess. It formed a strong, reliable seal that held up perfectly under high temperatures and pressure, ensuring my intake manifold installation was rock-solid. The product lived up to its promises, providing excellent adhesion and durability. I highly recommend this RTV silicone for any automotive sealing needs! ## 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 | #37,598 in Automotive ( See Top 100 in Automotive ) #163 in Automotive Fillers, Adhesives & Sealants | | Brand Name | Permatex | | Color | Optimum Red | | Customer Reviews | 4.7 4.7 out of 5 stars (431) | | 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 Type | Silicone | | UPC | 686226987631 686226270382 | | Unit Count | 1 Count | | Upper Temperature Rating | 750 Degrees Fahrenheit | ## Product Details - **Brand:** Permatex - **Colour:** Optimum Red - **Item thickness:** 0.2 Inches - **Material:** Silicone - **Upper temperature rating:** 750 Degrees Fahrenheit ## Images ![27038 Optimum Red High Temperature Gasket Maker 3.35 oz - Image 1](https://m.media-amazon.com/images/I/813a9mGj4BL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐ Review *by T***B on 15 August 2021* Not sure what is up with the toothpaste tubes but the caps all brake now. They also always get holes in them and dry out. Tired of messing with that so got these cans. One came with a broke nozzle but it is still useable. pretty easy to use and less mess than the toothpaste tubes. ### ⭐⭐⭐⭐⭐ Review *by J***N on 17 July 2025* I recently used the Permatex 27038 Optimum Red RTV Silicone to install my intake manifold, and I’m incredibly impressed with its performance! This silicone sealant was very simple to use, applying smoothly and evenly without any mess. It formed a strong, reliable seal that held up perfectly under high temperatures and pressure, ensuring my intake manifold installation was rock-solid. The product lived up to its promises, providing excellent adhesion and durability. I highly recommend this RTV silicone for any automotive sealing needs! ### ⭐⭐⭐⭐⭐ Review *by J***K on 19 December 2025* This stuff is great. You must follow the instructions though. Don’t just apply and go. ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/337736440-27038-optimum-red-high-temperature-gasket-maker-3-35-oz](https://www.desertcart.tn/products/337736440-27038-optimum-red-high-temperature-gasket-maker-3-35-oz) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-05-31*