When doing a ductless AC system do you put this on the inside and outside of the flair or only on the threads?

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.

Will this work with propane gas lines

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.

can this be used to seal service valve caps?

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.

Would NYLOG blue seal a slow rim leak in a tubeless tire?

I would think so.....but an expensive way to seal a tire....cleaning the rim bead with a wire wheel should do it.

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Refrigeration Technologies RT201B Nylog Gasket/Thread Sealant,Blue

Refrigeration Technologies RT201B Nylog Gasket/Thread Sealant,Blue

Product ID: 215967504

Details

Brand
Refrigeration
Material
Nylon
Colour
Blue
Shape
Round
UPC
330051886132

🔵High-performance blue nylon formula

⚙️Lightweight 22.6g bottle for easy handling

🛠️Precision thread sealing for HVAC reliability

E£ 3258

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Sold byAmazon EGYPTDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔧 Seal the deal with confidence—blue power for flawless HVAC performance!

COMPACT LIGHTWEIGHT - 22.6g bottle fits perfectly in your toolkit without weighing you down.
EFFORTLESS APPLICATION - Smooth consistency guarantees quick, mess-free sealing to keep your projects on schedule.
HVAC GRADE NYLON FORMULA - Specially engineered blue nylon compound designed for superior chemical and temperature resistance.
UNMATCHED SEAL INTEGRITY - Ensures leak-proof, durable gasket and thread sealing for critical refrigeration systems.
TRUSTED INDUSTRY STANDARD - Ranked top 15 in Fillers, Adhesives & Sealants—preferred by professionals worldwide.

The Refrigeration Technologies RT201B Nylog Gasket/Thread Sealant is a premium blue nylon-based sealant designed specifically for HVAC and refrigeration applications. Lightweight and compact, it delivers reliable, leak-proof seals on gaskets and threads, ensuring system integrity under demanding conditions. Highly rated and trusted by professionals, this sealant is a must-have for anyone serious about flawless refrigeration maintenance and repair.

Specifications

ASIN	B008HOSQQQ
Batteries Required?	No
Batteries included?	No
Best Sellers Rank	1,172 in Automotive ( See Top 100 in Automotive ) 14 in Fillers, Adhesives & Sealants
Colour	Blue
Customer Reviews	4.6 4.6 out of 5 stars (34)
Date First Available	5 July 2012
Guaranteed software updates until	unknown
Included components	Bottle
Item Package Quantity	1
Item Weight	22.6 g
Item model number	RT201B
Manufacturer	Refrigeration Technologies
Material	Nylon
Part number	RT201B
Product Dimensions	2.54 x 2.54 x 1.27 cm; 22.68 g
Shape	Round

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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E£ 3258

Duties & taxes included

In stock

Sold byAmazon EGYPTDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to EGYPT.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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