--- product_id: 10273968 title: "Refrigeration Technologies RT200R Nylog- Gasket/Thread Sealant" brand: "refrigeration technologies" price: "€ 23.41" currency: EUR in_stock: true reviews_count: 8 category: "Refrigeration Technologies" url: https://www.desertcart.hr/products/10273968-refrigeration-technologies-rt200r-nylog-gasket-thread-sealant store_origin: HR region: Croatia --- # Never hardens or dries Compatible with all refrigerants High-tack assembly lubricant Refrigeration Technologies RT200R Nylog- Gasket/Thread Sealant **Brand:** refrigeration technologies **Price:** € 23.41 **Availability:** βœ… In Stock ## Summary > πŸ›‘οΈ Seal it, Lubricate it, Own it β€” The ultimate HVAC secret weapon! ## Quick Answers - **What is this?** Refrigeration Technologies RT200R Nylog- Gasket/Thread Sealant by refrigeration technologies - **How much does it cost?** € 23.41 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/10273968-refrigeration-technologies-rt200r-nylog-gasket-thread-sealant) ## 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 - β€’ **Seal with Confidence:** Gaskets coated with Nylon stay flexible and never heat-fix, ensuring leak-proof, vibration-resistant seals. - β€’ **No Clogs, No Contamination:** Formulated to never harden or clog, keeping your HVAC and refrigeration systems clean and efficient. - β€’ **Smooth Assembly Every Time:** Acts as a high-tack lubricant for shaft seals, O-rings, valves, and system components, reducing wear and installation hassle. - β€’ **OEM-Recommended Reliability:** Trusted and recommended by manufacturers for consistent, long-lasting sealing and lubrication performance. - β€’ **Universal Refrigerant Compatibility:** NYLOG RED works seamlessly with Ammonia, Propane, CFC, HCFC systems; NYLOG BLUE covers synthetic and HFO refrigerants including CO2. ## Overview RT200R Nylog is a premium nylon-based gasket and thread sealant that never hardens or dries, providing durable, vibration-resistant seals. It doubles as a high-tack lubricant for easy assembly of seals and valves, fully compatible with a wide range of refrigerants including ammonia, propane, CFCs, HCFCs, and modern synthetic blends. Recommended by OEMs, it prevents leaks and contamination, making it an essential tool for HVAC professionals and enthusiasts aiming for flawless system performance. ## Description It’s a Sealant: Nylon is a viscoelastic fluid made from refrigeration grade compressor oil. Gaskets coated with Nylon will never dry or become heat fixed to the surface. Threaded connections coated with Nylon will prevent high pressure leaks by forming a hydraulic seal. The compound always remains temperature and vibration resilient. It’s a Lubricant: Nylon can be used as a high tack assembly lube when installing shaft seals, O-rings, Schrader valves, ball valves, unloaders or other system components. Nylon is fully miscible and 100% compatible with the refrigerant and base compressor oils. NYLOG RED Is based on Mineral Oil and used on Ammonia, Propane, CFC or HCFC systems. NYLOG BLUE is synthetic ester oils fully compatible with all systems including those based on PVE oil, HFO refrigerants and CO2. Will Never Harden or Dry Will Not Clog or Contaminate Systems Fully Compatible and Miscible Used and Recommended by OEM’s Review: This is a must have if you are servicing the AC system on cars. - I had been ignoring my 20 year old AC system that leaked at the drier to low pressure line junction. No matter what I tried with different sizes of O rings, I could not hold vacuum longer than 3 hours. I decided to give this a go and pulled vacuum but it still didn't hold vacuum over night. I decided to just fill the system after drawing a vacuum with refrigerant with some sealer. Behold, it has been fine for past 2 months and I still have AC. I noticed this thing will soften plastic. My phone case has a spot where I got this snot on the surface and it is now permanently softened enough I can push with finger and it willl leave my finger print. I guess that is how this works. I would never mate any AC fittings without this ever again. Highly recommended. Review: Made my gauges finally work without leaking! - My neighbor is retired from HVAC and when I asked him what to use for leaky manifold gauges, he yelled " NYLOG RED"! Hopefully it will work because I cannot see paying a pro 10x the price that I can fix it for. Has a light oil smell and is a medium/thick consistency. Will update results soon! Also, my neighbor advised me to check and replace all the schrader valves and use the softer 1/4" manifold gauge gaskets (desertcart has a bag of 50 green gaskets for only $6!!!) instead of using the nylon gaskets. If I have time, I will do a video review on this.a ## Features - It’s a Sealant: Gaskets coated with Nylon will never dry or become heat fixed to the surface - It’s a Lubricant: Nylon can be used as a high tack assembly lube when installing shaft seals, O-ring - Schrader valves, ball valves, unloaders or other system components - NYLOG RED: Is based on Mineral Oil and used on Ammonia, Propane, CFC or HCFC systems. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B008HOSQ3E | | Best Sellers Rank | #266,946 in Automotive ( See Top 100 in Automotive ) #119 in Gasket Sealers | | Date First Available | July 5, 2012 | | Is Discontinued By Manufacturer | No | | Item Weight | 1.6 ounces | | Item model number | RT200R | | Manufacturer | Refrigeration Technologies | | National Stock Number | 8030-01-574-0469 | | Product Dimensions | 0.5 x 0.25 x 0.1 inches | ## Images ![Refrigeration Technologies RT200R Nylog- Gasket/Thread Sealant - Image 1](https://m.media-amazon.com/images/I/41CKIg1XYgL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ This is a must have if you are servicing the AC system on cars. *by M***. on April 18, 2019* I had been ignoring my 20 year old AC system that leaked at the drier to low pressure line junction. No matter what I tried with different sizes of O rings, I could not hold vacuum longer than 3 hours. I decided to give this a go and pulled vacuum but it still didn't hold vacuum over night. I decided to just fill the system after drawing a vacuum with refrigerant with some sealer. Behold, it has been fine for past 2 months and I still have AC. I noticed this thing will soften plastic. My phone case has a spot where I got this snot on the surface and it is now permanently softened enough I can push with finger and it willl leave my finger print. I guess that is how this works. I would never mate any AC fittings without this ever again. Highly recommended. ### ⭐⭐⭐⭐⭐ Made my gauges finally work without leaking! *by D***T on September 30, 2019* My neighbor is retired from HVAC and when I asked him what to use for leaky manifold gauges, he yelled " NYLOG RED"! Hopefully it will work because I cannot see paying a pro 10x the price that I can fix it for. Has a light oil smell and is a medium/thick consistency. Will update results soon! Also, my neighbor advised me to check and replace all the schrader valves and use the softer 1/4" manifold gauge gaskets (Amazon has a bag of 50 green gaskets for only $6!!!) instead of using the nylon gaskets. If I have time, I will do a video review on this.a ### ⭐⭐⭐⭐⭐ Handy Sealant *by A***A on August 2, 2020* I keep this in my tool bag and there when I need it in a attic or on a roof top unit. This sealant meet my everyday tasks in HVAC jobs. ## Frequently Bought Together - Refrigeration Technologies RT200R Nylog- Gasket/Thread Sealant - Refrigeration Technologies RT201B Nylog Gasket/Thread Sealant, 30 ml (1 Pack) - Zoizocp R410A Adapter 5/16 inches SAE Female to 1/4 inches SAE Male Flare for Air Conditioners HVAC, 2 Straight Adapter + 2 Angled Adapter --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/10273968-refrigeration-technologies-rt200r-nylog-gasket-thread-sealant](https://www.desertcart.hr/products/10273968-refrigeration-technologies-rt200r-nylog-gasket-thread-sealant) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-04-25*