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What sealant for A/C o-rings?

Woody (Forum Supportum)
Woody (Forum Supportum) GRM+ Memberand MegaDork
7/1/24 10:15 p.m.

I'm replacing some a/c hard lines and I'm having trouble getting them to seal. What is the preferred sealant for the o-rings?

 

Is this what I want?

SkinnyG
SkinnyG PowerDork
7/1/24 10:19 p.m.

AC Oil.  PAG in many cases.

No Time
No Time UberDork
7/1/24 10:45 p.m.

I recently had an issue with the o-rings in the kits being the wrong size. After getting a different kit with the same issue of incorrect size, I ordered this O-ring kit for $17.


 

edit: my issue was sealing a line to the condenser with a block style coupling like the coupler you're fixing on the Honda. 

lownslow
lownslow GRM+ Memberand Reader
7/1/24 10:53 p.m.

NyLog.

pointofdeparture
pointofdeparture GRM+ Memberand UltimaDork
7/1/24 11:34 p.m.

+1 to Nylog. It is the correct stuff designed just for this application.

Woody (Forum Supportum)
Woody (Forum Supportum) GRM+ Memberand MegaDork
7/2/24 4:34 a.m.

Thanks. Just ordered some NyLog

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