I had a broken A/C hose last year and I have purchase an replacement. I will install the hose this weekend and charge it up with 134a. What type of thread sealent should I use. The air condition shop said they would not use any sealent if they install the hose back in. But, when i took the hose apart. I know forsure they use some short os sealent. Look like epoxy. I want to use the right stuff that would last.

thank

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Silver Honda Accord, 2006
Silver G500, 2003
Silver SLK-320, 2002
Black ML-320, 2000
Bule Porsche 993 Targa , 1997
Silver Merkur XR4Ti, 1987