--- product_id: 762034357 title: "Permatex General Fitting Thread Sealant, White, 50ml [PTX56521]" brand: "permatex" price: "HK$381" currency: HKD in_stock: true category: "Permatex" url: https://www.desertcart.hk/products/762034357-permatex-general-fitting-thread-sealant-white-50ml-ptx56521 store_origin: HK region: Hong Kong --- # Viscosity 30,000 cP for secure sealing Temp range -54°C to 149°C 1.7 fl oz liquid alternative to tape Permatex General Fitting Thread Sealant, White, 50ml [PTX56521] **Brand:** permatex **Price:** HK$381 **Availability:** ✅ In Stock ## Summary > 🛠️ Seal like a pro, skip the tape, and never leak again! ## Quick Answers - **What is this?** Permatex General Fitting Thread Sealant, White, 50ml [PTX56521] by permatex - **How much does it cost?** HK$381 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/762034357-permatex-general-fitting-thread-sealant-white-50ml-ptx56521) ## 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 - • **Temperature Tough:** Operates flawlessly from -54°C to 149°C, perfect for extreme automotive and industrial environments. - • **Tape-Free Efficiency:** Say goodbye to messy Teflon tape; this liquid sealant applies smoothly for a flawless fit every time. - • **Leak-Proof Confidence:** Anaerobic formula seals tight under pressure, vibration, and temperature shifts—no more costly leaks. - • **Corrosion & Stain Defense:** Prevents corrosion and staining, extending the life of your fittings and maintaining a pristine system. - • **Metal Compatibility Master:** Engineered for steel, brass, aluminum, titanium—versatile enough for all your professional fittings. ## Overview Permatex PTX56521 is a high-viscosity, white anaerobic thread sealant designed for metal fittings. It withstands extreme temperatures from -54°C to 149°C and replaces traditional Teflon tape with a durable, corrosion-resistant liquid formula. Trusted by professionals for leak-proof performance in hydraulic, pneumatic, and fuel systems. ## Description Product Description Car gasket sealant Thread sealant is an anaerobic plumbing sealant alternative to sealing tape. 1 fluid, making it easy to apply, and reduces vibration, temperature changes, and pressure leakage to prevent corrosion and tarnishing. For metal. Seals hydraulic and pneumatic fittings, air piping, cooling lines, fuel system fittings, intake manifold Alternative to sealing tape and includes Teflon. 50ml Safety Warning Precautions for Use: *This product is flammable, so please keep away from fire. Keep out of reach of children. Emergency Treatment: If swallowed, please consult a physician immediately without inducing vomiting. If it gets in your eyes, rinse thoroughly with water immediately and see a doctor. Precautions for Use: Do not use for purposes other than the listed above. Please refer to the instruction manual (English language not guaranteed). Storage and disposal: Store in a ventilated place at low temperature away from direct sunlight. Dispose of contents after they run out ## Features - Liquid Color: White - Viscosity (cP): 300,000 - Applicable temperature range: -54°C - 149°C - Flash Point: Above 212°F (100°C) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000FW7VHI | | Amazon Bestseller | #156,053 in Automotive ( See Top 100 in Automotive ) #1,039 in Oil System Tools | | Brand | Permatex | | Customer Reviews | 4.7 4.7 out of 5 stars (560) | | Date First Available | January 19, 2014 | | Is Discontinued By Manufacturer | No | | Item Dimensions L x W x H | 20.3 x 7.6 x 5.1 cm | | Item Weight | 49.9 g | | Item model number | 56521 | | Manufacturer | パーマテックス(Permatex) | | Model | PTX56521 | | OEM Part Number | 56521 | | Product Dimensions | 20.32 x 7.62 x 5.08 cm; 49.9 g | | Warranty | Due to product defects | ## Product Details - **Brand:** Permatex - **Item Weight:** 50 g - **Item dimensions L x W x H:** 20.3 x 7.6 x 5.1 cm - **Material:** Polytetrafluoroethylene - **Style:** Thread ## Images ![Permatex General Fitting Thread Sealant, White, 50ml [PTX56521] - Image 1](https://m.media-amazon.com/images/I/71XJlR1DA2L.jpg) ![Permatex General Fitting Thread Sealant, White, 50ml [PTX56521] - Image 2](https://m.media-amazon.com/images/I/81msyXp8sDL.jpg) ![Permatex General Fitting Thread Sealant, White, 50ml [PTX56521] - Image 3](https://m.media-amazon.com/images/I/61pOl+VcCUL.jpg) ![Permatex General Fitting Thread Sealant, White, 50ml [PTX56521] - Image 4](https://m.media-amazon.com/images/I/71UQ7PUtbVL.jpg) ![Permatex General Fitting Thread Sealant, White, 50ml [PTX56521] - 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". ## 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.hk/products/762034357-permatex-general-fitting-thread-sealant-white-50ml-ptx56521](https://www.desertcart.hk/products/762034357-permatex-general-fitting-thread-sealant-white-50ml-ptx56521) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-05-26*