--- product_id: 59858689 title: "Optimum Black" brand: "permatex" price: "€ 13.91" currency: EUR in_stock: true reviews_count: 12 category: "Permatex" url: https://www.desertcart.ie/products/59858689-optimum-black store_origin: IE region: Ireland --- # 60% more flexible with max oil resistance Temp range -65°F to 500°F 15% stronger than Ultra Black Optimum Black **Brand:** permatex **Price:** € 13.91 **Availability:** ✅ In Stock ## Summary > 🛡️ Seal like a pro, last like a legend. ## Quick Answers - **What is this?** Optimum Black by permatex - **How much does it cost?** € 13.91 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/59858689-optimum-black) ## 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 - • **Unmatched Strength:** 15% stronger than Ultra Black for a seal that won’t quit under pressure. - • **Sensor-Safe & Low Odor:** Formulated to protect sensitive components while keeping your workspace fresh. - • **Complete Application Kit:** Includes 2 precision nozzles for mess-free, professional-grade gasket making. - • **Oil-Resistant Flexibility:** 60% more flexible than competitors, maintaining integrity against harsh oils and vibrations. - • **Extreme Temperature Resilience:** Operates flawlessly from -65°F to 500°F, perfect for any engine environment. ## Overview Permatex 27037 Optimum Black Gasket Maker is a premium silicone-based sealant engineered for high-performance automotive applications. It offers superior oil resistance, exceptional flexibility, and a wide temperature tolerance from -65°F to 500°F. Designed for sensor-safe use on modern lightweight components, it delivers a 15% stronger bond than Ultra Black and includes dual nozzles for precise application, making it the go-to choice for professionals demanding durability and reliability. ## Description Permatex optimum black is designed for gasket making in newer lightweight and premium components where maximum oil resistance is required, specifically within assemblies where two unlike materials meet. Optimum black is ideal for use with valve covers, oil pans, oil pumps, intake manifold end seals, timing gear covers and differential covers. Review: Gasket maker. - Easy to use. Perfect for assembling multiple parts together. Review: Excellent sealer with real grip - I can't say this stuff is easy to remove once applied as the only time I had to remove a piece I had used the product on it put up a heck of a fight coming off. That proved that it had created a tight seal which is what I wanted. Vibration wasn't going to lossen it that's for sure. Application can be messy if you get in a hurry but its ability to create a tight seal with a firm holding power would be hard to duplicate this side of a weld. ## Features - Sensor-safe, low odor, and non-corrosive - Meets performance Specs of OE silicone gaskets. Resistant to Auto & shop fluids and vibration. 15% stronger than Ultra Black. - Retains highest flexibility with maximum oil resistance through use of a patented adhesion system. 60% more flexible than Ultra Black - Temperature range: -65 DegreeF to 500 DegreeF (-54 DegreeC to 260 DegreeC) intermittent - Includes 2 nozzles ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B072MRCG8W | | Best Sellers Rank | #57 in Automotive ( See Top 100 in Automotive ) #1 in Gasket Sealers #983 in Oils & Fluids | | Brand | Permatex | | Brand Name | Permatex | | Color | Optimum Black | | Compatible Material | Metal, Rubber | | Customer Reviews | 4.8 out of 5 stars 683 Reviews | | Global Trade Identification Number | 00686226270375 | | Included Components | Gasket Maker | | Item Dimensions | 1.25 x 3.81 x 8 inches | | Item Form | Paste | | Item Type Name | Optimum Black Gasket Maker 3.35 oz | | Item Weight | 0.11 Kilograms | | Item dimensions L x W x H | 1.25 x 3.81 x 8 inches | | Manufacturer | Permatex | | Material | Silicone | | Material Type | Silicone | | Model | 27037 | | Number of Items | 1 | | Part Number | 27037 | | Style | Optimum | | Style Name | Optimum | | Surface Recommendation | Miscellaneous | | UPC | 686226270375 | | Unit Count | 1.0 Count | | Water Resistance Level | Water Resistant | ## Product Details - **Brand:** Permatex - **Item dimensions L x W x H:** 1.25 x 3.81 x 8 inches - **Material:** Silicone - **Style:** Optimum - **Water Resistance Level:** Water Resistant ## Images ![Optimum Black - Image 1](https://m.media-amazon.com/images/I/712ZFo2pnCL.jpg) ![Optimum Black - Image 2](https://m.media-amazon.com/images/I/817eShEYzKL.jpg) ![Optimum Black - Image 3](https://m.media-amazon.com/images/I/61OgWKKbqpL.jpg) ![Optimum Black - Image 4](https://m.media-amazon.com/images/I/61lzsl+RTYL.jpg) ![Optimum Black - Image 5](https://m.media-amazon.com/images/I/61OAoZZeaFL.jpg) ## Available Options This product comes in different **Size, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Gasket maker. *by J***C on November 9, 2025* Easy to use. Perfect for assembling multiple parts together. ### ⭐⭐⭐⭐⭐ Excellent sealer with real grip *by R***T on March 15, 2023* I can't say this stuff is easy to remove once applied as the only time I had to remove a piece I had used the product on it put up a heck of a fight coming off. That proved that it had created a tight seal which is what I wanted. Vibration wasn't going to lossen it that's for sure. Application can be messy if you get in a hurry but its ability to create a tight seal with a firm holding power would be hard to duplicate this side of a weld. ### ⭐⭐⭐⭐⭐ Highly recommend gasket maker *by I***7 on March 10, 2026* I brought this gasket maker when I was changing my CRV engine gasket. Very easy apply, dry very quick and adhesion very well. So far I don't see any issues and durability is good. It's very easy use making gasket and comes with everything you need. Good price for quality products. ## Frequently Bought Together - Permatex 27037 Optimum Black Gasket Maker, 3 oz - Permatex 27036 Optimum Grey Gasket Maker 3 oz - Permatex 27038 Optimum Red High Temperature Gasket Maker, 3 oz --- ## 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.ie/products/59858689-optimum-black](https://www.desertcart.ie/products/59858689-optimum-black) --- *Product available on Desertcart Ireland* *Store origin: IE* *Last updated: 2026-05-23*