--- product_id: 3907127 title: "Refrigeration Technologies RT201B Nylog Gasket/Thread Sealant, 30 ml (1 Pack)" brand: "refrigeration technologies" price: "NZ$42" currency: NZD in_stock: true reviews_count: 8 url: https://www.desertcart.nz/products/3907127-refrigeration-technologies-rt201b-nylog-gasket-thread-sealant-30-ml-1 store_origin: NZ region: New Zealand --- # Seals flares & threaded connections Lubricates O-rings & gaskets OEM-approved contamination-free Refrigeration Technologies RT201B Nylog Gasket/Thread Sealant, 30 ml (1 Pack) **Brand:** refrigeration technologies **Price:** NZ$42 **Availability:** ✅ In Stock ## Summary > 🛠️ Seal it like a pro, leak-free every time! ## Quick Answers - **What is this?** Refrigeration Technologies RT201B Nylog Gasket/Thread Sealant, 30 ml (1 Pack) by refrigeration technologies - **How much does it cost?** NZ$42 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/3907127-refrigeration-technologies-rt201b-nylog-gasket-thread-sealant-30-ml-1) ## Best For - refrigeration technologies enthusiasts ## Why This Product - Trusted refrigeration technologies brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact Power Pack:** 30 ml tube delivers long-lasting performance in a sleek, easy-to-handle size. - • **Precision Seal Mastery:** Ensures leak-proof flares and threaded joints for ultimate system integrity. - • **Industry-Leading Choice:** Ranked #2 in Industrial Thread Sealants—join the pros who demand the best. - • **OEM-Approved Reliability:** Trusted by top manufacturers to keep your refrigeration systems contamination-free. - • **Smooth Assembly Lubrication:** Effortlessly lubricates O-rings and gaskets, reducing wear and installation time. ## Overview Refrigeration Technologies RT201B Nylog Gasket/Thread Sealant is a 30 ml OEM-approved formula designed to seal flares and threaded connections without contaminating refrigeration systems. It also lubricates O-rings and gaskets for smooth assembly, making it a top-ranked industrial thread sealant trusted by professionals. ## Description Refrigeration Technologies nylogâ" gasket thread sealant and assembly lube #rt201b. Product with good quality. ## Features - Will not Contaminate Systems - Seals Flares and Threaded Connections - Lubricates O-Rings and Gaskets - Approved by OEM Manufacturers ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B008HOSQQQ | | Best Sellers Rank | #359 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #2 in Industrial Thread Sealants | | Date First Available | July 5, 2012 | | Is Discontinued By Manufacturer | No | | Item Model Number | RT201B | | Item Weight | 0.8 ounces | | Manufacturer | Refrigeration Technologies | | Product Dimensions | 1 x 1 x 0.5 inches | ## Product Details - **Brand:** Refrigeration Technologies - **Color:** Blue - **Shape:** Round - **UPC:** 330051886132 360846703061 360846703078 017857002019 696335207483 - **Manufacturer:** Refrigeration Technologies ## Images ![Refrigeration Technologies RT201B Nylog Gasket/Thread Sealant, 30 ml (1 Pack) - Image 1](https://m.media-amazon.com/images/I/51v8lmbJ0JL.jpg) ## Questions & Answers **Q: When doing a ductless AC system do you put this on the inside and outside of the flair or only on the threads?** A: This stuff is great. You don't put it on the thread, it goes on the flair. It's not like lock tite it's a flair tight. I'm a diu girl and this is great stuff. I used it a year ago and I still have great ac. Before using it I could not hold a vacuum on my system. **Q: Will this work with propane gas lines** A: Having not used it, can't say 100%. But since R290 is purified propane, and this says it's for all refrigerants, I don't see why not. Though there may be additives in propane meant for heating that could possibly interact with it. Certainly propane for heating is not as pure as the refrigeration stuff. As someone else mentioned, asking the manufacturer is probably a good idea before trying. **Q: can this be used to seal service valve caps?** A: I don't believe I would use it for that purpose. If it gets into the valve it would probably keep the valve from working properly. I generally use brass caps with o-rings to seal service valve ports. **Q: Would NYLOG blue seal a slow rim leak in a tubeless tire?** A: I would think so.....but an expensive way to seal a tire....cleaning the rim bead with a wire wheel should do it. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excellent Outdoor Light with Convenient GFCI Outlet *by on Reviewed in the United States June 8, 2026* The Refrigeration Technologies RT201B Nylog Gasket/Thread Sealant is an excellent product for HVAC and refrigeration work. I've used it on flare fittings, threaded connections, O-rings, and gaskets, and it consistently helps create leak-free seals. Unlike traditional thread sealants, Nylog remains flexible and does not harden, making future maintenance and disassembly much easier.What stands out most is its compatibility with refrigerants and compressor oils. It lubricates connections during assembly while providing an extra layer of protection against leaks. A small amount goes a long way, so the 30 ml bottle lasts much longer than expected.The sealant is easy to apply, stays in place, and performs well even in systems exposed to vibration and temperature changes. It's a trusted product among HVAC professionals for good reason.Overall, if you're working on refrigeration or air conditioning systems and want a dependable sealant that won't contaminate the system, the RT201B Nylog Blue is a worthwhile addition to your toolbox. Highly recommended. ### ⭐⭐⭐⭐⭐ Very helpful in amateur HVAC work. *by on Reviewed in the United States June 8, 2026* The Nylog arrived promptly. Used it in the installation of a mini-split. The product is easy to use. The mini-split has been working beautifully with no refrigerant leaks during testing and operation for about three days so far. ### ⭐⭐⭐⭐⭐ Insurance for DIYer *by on Reviewed in the United States June 12, 2026* used to install Minisplit, works well, good reassurance for long lasting seals. Used as recommended on head of cones where the flare joins, putting several mini-splits on an older home retrofit. Easy to use, ample supply for multiple applications. Seems wise to prevent possible leakage for the price compared to replacing lost refrigerant on a DIYer. ## Frequently Bought Together - Refrigeration Technologies RT201B Nylog Gasket/Thread Sealant, 30 ml (1 Pack) - DuctlessAire Outdoor Wall Bracket - Mini Split Wall Mounting Bracket - Air Conditioner Support Brackets - Mounted Brackets for Ductless Mini Split, Heater, Window AC Unit & More (9000-36000 BTU) - R410a Adapter for Mini Split System, Charging Vacuum Port Adapter, 5/16 Female 1/4 Male Flare, Valve Core Remover, r134a Hose Gaskets, 5V1 Valve Cores, for HVAC and Refrigeration Service --- ## 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.nz/products/3907127-refrigeration-technologies-rt201b-nylog-gasket-thread-sealant-30-ml-1](https://www.desertcart.nz/products/3907127-refrigeration-technologies-rt201b-nylog-gasket-thread-sealant-30-ml-1) --- *Product available on Desertcart New Zealand* *Store origin: NZ* *Last updated: 2026-06-20*