--- product_id: 294725653 title: "Permatex 56521 High Performance Thread Sealant, 50 ml" brand: "permatex" price: "SAR 97" currency: SAR in_stock: true reviews_count: 5 category: "Permatex" url: https://www.desertcart.com.sa/products/294725653-permatex-56521-high-performance-thread-sealant-50-ml store_origin: SA region: Saudi Arabia --- # Waterproof & corrosion-proof seal Locks threads up to 10,000 PSI Temperature resistant -60°F to 300°F Permatex 56521 High Performance Thread Sealant, 50 ml **Brand:** permatex **Price:** SAR 97 **Availability:** ✅ In Stock ## Summary > 🔧 Seal it like a pro — don’t let leaks steal your spotlight! ## Quick Answers - **What is this?** Permatex 56521 High Performance Thread Sealant, 50 ml by permatex - **How much does it cost?** SAR 97 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.sa](https://www.desertcart.com.sa/products/294725653-permatex-56521-high-performance-thread-sealant-50-ml) ## 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 - • **Corrosion & Leak Defense:** Creates an airtight, watertight barrier that prevents rust, galling, and leaks over time. - • **Unmatched Thread Security:** High-strength sealant locks connections up to 10,000 PSI, ensuring zero loosening under pressure. - • **Clean & Efficient Application:** Replaces messy tapes and dopes with a fast-curing, no-fuss liquid formula for professional results. - • **Versatile Metal Compatibility:** Optimized for stainless steel and metal alloys, ideal for automotive, industrial, and DIY projects. - • **Extreme Temperature Resilience:** Performs flawlessly from freezing -60°F to scorching 300°F, perfect for any environment. ## Overview Permatex 56521 High Performance Thread Sealant is a premium synthetic rubber formula designed to lock metal and tapered pipe threads with a waterproof, corrosion-resistant seal. It withstands pressures up to 10,000 PSI and temperatures from -60°F to 300°F, delivering fast curing and reliable protection for automotive and industrial applications. Trusted by professionals and DIYers alike, it replaces traditional tapes with a cleaner, stronger, and longer-lasting solution. ## Description Permatex High Performance Thread Sealant offers the ultimate sealing power with the added strength of a blue thread locker. This versatile sealant creates an airtight, watertight hold that prevents leaks, loosening, and corrosion, even under high pressures and temperatures. It seals connections up to 1,000 PSI, with a rapid cure capable of withstanding 10,000 PSI, ensuring leak-proof reliability for your toughest jobs. Temperature resistant from -60°F to 300°F, it’s designed specifically for metal and tapered pipe thread fittings, delivering protection against galling, rust, and corrosion over time. Ideal for stainless steel fittings, oil PSI sending units, oil and coolant lines, intake manifold switches, rear axle fill plugs, fuel fittings, and more, this high-performance thread sealant replaces traditional pipe tape and dope with a faster, cleaner application. Keep your metal connections locked and secure without the risk of leaks, making this sealant a must-have for both professional mechanics and DIY enthusiasts who need lasting, high-strength results. Review: Forget plumbers tape, this what you want - If plumbers tape was a model T Ford, this is a Ferrari. Awesome product. Review: Buen sellador - Cumple con su objetivo ## Features - These Are Complete Line Of Heavy-Duty Shop Products - These Products On Exceptionally High Order Fulfillment Rates, Breadth Of Available Products - Through Creativity, Productivity And Innovation - This Brand Continues To Develop The Finest Automotive Accessories - Part number: 56521 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000FW7VHI | | Best Sellers Rank | #151,307 in Car & Motorbike ( See Top 100 in Car & Motorbike ) #147 in Fillers, Adhesives & Sealants | | Brand | Permatex | | Brand Name | Permatex | | Colour | White | | Compatible Material | Stainless Steel, Metal Alloys | | Country of Publication | USA | | Customer Reviews | 4.7 out of 5 stars 534 Reviews | | Global Trade Identification Number | 00079340565210 | | Included Components | Auto part, Automotive Accessories, Replacement and Performance parts | | Item Dimensions | 20.3 x 7.6 x 5.1 Centimeters | | Item Form | Liquid | | Item Type Name | Thread Sealant | | Item Weight | 50 g | | Item dimensions L x W x H | 20.3 x 7.6 x 5.1 Centimeters | | Manufacturer | Permatex | | Material | Synthetic Rubber | | Material Type | Synthetic Rubber | | Style | Compact | | Style Name | Compact | | Surface Recommendation | Fixture | | UPC | 079340565210 | | Unit Count | 50.0 Milliliters | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** Permatex - **Item Weight:** 0.11 Pounds - **Item dimensions L x W x H:** 20.3 x 7.6 x 5.1 Centimeters - **Material:** Synthetic Rubber - **Style:** Compact ## Images ![Permatex 56521 High Performance Thread Sealant, 50 ml - Image 1](https://m.media-amazon.com/images/I/71XJlR1DA2L.jpg) ![Permatex 56521 High Performance Thread Sealant, 50 ml - Image 2](https://m.media-amazon.com/images/I/81msyXp8sDL.jpg) ![Permatex 56521 High Performance Thread Sealant, 50 ml - Image 3](https://m.media-amazon.com/images/I/61pOl+VcCUL.jpg) ![Permatex 56521 High Performance Thread Sealant, 50 ml - Image 4](https://m.media-amazon.com/images/I/71UQ7PUtbVL.jpg) ![Permatex 56521 High Performance Thread Sealant, 50 ml - Image 5](https://m.media-amazon.com/images/I/81UPnpKtW6L.jpg) ## Questions & Answers **Q: Does this stuff seal pneumatic (800 psi) threads on an and npt fittings.** A: I’ve not used it for your application however, her is the product discription for reference Formulated for metal, tapered ppe thread fittings. Protects threaded areas from rust and corrosion. Uses: head bolts, oil senders, oil and coolant lines, fuel fittings. Features & details Cures rapidly to withstand 10,000 PSI Perfect as a replacement for Vibra-Seal pre-coated parts Prevents galling and protects mated threaded areas from rust and corrosion **Q: Can this be used on plastic pipe** A: Here is a copy and paste of the product description. "Formulated for metal, tapered ppe thread fittings. Protects threaded areas from rust and corrosion. Uses: head bolts, oil senders, oil and coolant lines, fuel fittings". Hope this helps. **Q: What's the difference between this & Special Edition? I need 2 use it 2 seal inline fuel filter thread brass fitting 4 a motorcycle tank 2 carb.** A: I tried a number of things to seal a brass tee into a motorcycle oil pressure outlet. Nothing worked 'til I tried this stuff. Be sure to clean the threads well beforehand. If the stuff is rated for fuel, I'm sure it'll work for your application. It's good stuff. **Q: What's the difference between this & Special Edition? I need 2 use it 2 seal inline fuel filter thread brass fitting 4 a motorcycle tank 2 carb.** A: The special edition is no doubt like many other products listed on Amazon a seller attempting to use the false label of a "special edition" to lure buyers to buy from them at a higher price, without prime shipping and more often than not slower shipping. I am willing to bet if you contact the maker of the product that they do not produce a "special edition". ## Customer Reviews ### ⭐⭐⭐⭐⭐ Forget plumbers tape, this what you want *by A***R on 31 May 2024* If plumbers tape was a model T Ford, this is a Ferrari. Awesome product. ### ⭐⭐⭐⭐⭐ Buen sellador *by P***E on 22 February 2024* Cumple con su objetivo ### ⭐⭐⭐⭐⭐ Works great *by K***Y on 22 May 2026* Sorted my leaking head bolts in an Ls. Used arp but the chromolly bolts don’t come with sealer like all the stock and stock replacement bolts do. Put on 3/4 of thread and install. Perfect. Further used on head plugs. Sealed up also without leaks. The stuff is incredible for automotive. ## Frequently Bought Together - Permatex 56521 High Performance Thread Sealant ,Thread Lock & Screw Glue for Bolts Nuts & Fasteners to Prevent Loosening & Corrosion, Removable w/ Hand Tools 50 ml - 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 22058 Dielectric Tune-Up Grease, 3oz. - High Performance Dielectric Grease Used To Protect Terminals, Spark Plugs, Wiring And Other Electrical Connections Against Salt, Dirt, And Corrosion --- ## 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.com.sa/products/294725653-permatex-56521-high-performance-thread-sealant-50-ml](https://www.desertcart.com.sa/products/294725653-permatex-56521-high-performance-thread-sealant-50-ml) --- *Product available on Desertcart Saudi Arabia* *Store origin: SA* *Last updated: 2026-07-08*