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Thread: Teflon or antiseize when installing retrofit r134a fittings to r12 hoses?

  1. #1
    Join Date
    Jun 2002
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    SCCoA Member#1257
    Posts
    3,363

    Teflon or antiseize when installing retrofit r134a fittings to r12 hoses?

    Just wondering what you guys recomend to put on the threads when installing the new r134a fittings to existing r12 hoses. Teflon or antiseize? Or nothing?

    Thanks for any input.
    Current: 1993 SC 5.0L Auto Red, 1994 SC 5-speed Teal, 1995 SC 5-speed Chameleon Blue
    Old: 89 SC auto Twilight Blue, 89 SC stick Titanium, 90 35th stick, 92 Sport 5.0L stick, 94 SC stick Black, 1994 SC Auto Teal
    Also: 1992 Feature Mustang Convertible 5-speed Vibrant Red, 1991 BMW 850i 6-speed Red, 1994 BMW 850CSi 6-speed Red

    www.mamn12.com for your mid-atlantic mn12 needs!

  2. #2
    Join Date
    Dec 2007
    Location
    Salem OR
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    7,125
    I've seen some of the kits recommend a 'dry sealant'. I'd assume that to be teflon tape, but I wouldn't go nuts with it, keeping in mind it can make it easier to overtorque fittings if not careful, compounded by them frequently being aluminum, so...

    If the mating is already flanged/o-ringed, clean and dry works for me.

  3. #3
    Join Date
    Jun 2002
    Location
    SCCoA Member#1257
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    3,363
    Quote Originally Posted by KMT View Post
    I've seen some of the kits recommend a 'dry sealant'. I'd assume that to be teflon tape, but I wouldn't go nuts with it, keeping in mind it can make it easier to overtorque fittings if not careful, compounded by them frequently being aluminum, so...

    If the mating is already flanged/o-ringed, clean and dry works for me.
    Excellent.

    Gracias, Ken!
    Current: 1993 SC 5.0L Auto Red, 1994 SC 5-speed Teal, 1995 SC 5-speed Chameleon Blue
    Old: 89 SC auto Twilight Blue, 89 SC stick Titanium, 90 35th stick, 92 Sport 5.0L stick, 94 SC stick Black, 1994 SC Auto Teal
    Also: 1992 Feature Mustang Convertible 5-speed Vibrant Red, 1991 BMW 850i 6-speed Red, 1994 BMW 850CSi 6-speed Red

    www.mamn12.com for your mid-atlantic mn12 needs!

  4. #4
    Join Date
    Apr 2018
    Posts
    25
    Quote Originally Posted by KMT View Post
    I've seen some of the kits recommend a 'dry sealant'. I'd assume that to be teflon tape, but I wouldn't go nuts with it, keeping in mind it can make it easier to overtorque fittings if not careful, compounded by them frequently being aluminum, so...

    If the mating is already flanged/o-ringed, clean and dry works for me.
    Alright we will try the dry sealant as well when we start working on the '90 Tbird SC, just need to finish first the installation of the parts from 4WheelOnline on the current truck project.

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