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Is my Permatec aviation form a gasket still usable?

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    Is my Permatec aviation form a gasket still usable?

    Hi Folks,

    I am wondering if anyone knows how long aviation form a gasket will stay usable after being opened. The gunge looks fine and smells the same as it did 5 years ago when it was last opened . . . .

    I use it when putting the exhaust risers and spacers together after a strip down and inspection. New gaskets, form a gasket, leave overnight before starting. Just not sure whether I should buy some more form a gasket or trust the stuff I have.

    Thanks in advance.

    Terry
    Terry (Retired Diving Instructor and Part Time IT Consultant)
    1998 Bayliner 2452. 5.7l V8 - Edelbrock 1409 4bbl - Alpha1Gen2 - Solent UK.
    MMSI 235061726

    #2
    This stuff should be good that long, is it still semi liquid or all congealed?
    88 Four Winns 200 Horizon 4.3 OMC
    98 Jeep Grand Cherokee 4.0/Selectrac
    07 Jeep Grand Cherokee 5.7 Hemi/Quadradrive II

    Long Island Sound Region

    Comment


      #3
      It’ll be fine, stir it up a bit
      Dave
      Edmonds, WA
      "THE FIX" '93 2556
      Carbureted 383 Vortec-Bravo II
      The Rebuild Of My 2556 https://www.baylinerownersclub.org/f...76?view=thread
      My Misc. Projects
      https://www.baylinerownersclub.org/f...56-gctid789773

      Comment


        #4
        as long as its spreadable, its usable.... there are more adhesive types available from permatex if you feel the need to glue the parts together, but in my opinion, the only reason to use the permatex brand over a silicone gasket sealer is that the permatex products are more solvent resistant, such as when a sealer is needed where gasoline may come in contact with it.... silicone is oil and diesel resistant after it cures, but not resistant to prolonged exposure to gas.


        NU LIBERTE'
        Salem, OR

        1989 Bayliner 2556 Convertible
        5.7 OMC Cobra - 15.5x11 prop
        N2K equipped throughout..
        2014 Ram 3500 crew cab, 6.7 Cummins
        2007 M-3705 SLC weekend warrior, 5th wheel
        '04 Polaris Sportsman 700 -- '05 Polaris Sportsman 500 HO
        Heavy Equipment Repair and Specialty Welding

        Comment


          #5
          there is also supposedly a Permatex product that is a replacement for OMC gasket sealer which I use on all the bolts on the outdrive (impeller bolts, bolts that hold the upper and lower together, anode bolts, etc). It is not actually the Aviation sealer but a related product just don't know which one. But for most purposed the Aviation stuff is close enough.
          88 Four Winns 200 Horizon 4.3 OMC
          98 Jeep Grand Cherokee 4.0/Selectrac
          07 Jeep Grand Cherokee 5.7 Hemi/Quadradrive II

          Long Island Sound Region

          Comment


            #6
            If it affects its ability to form a gasket, then it is not good. See how it spreads and if it's too thick and bunches up I wouldn't use it...

            One of the ingredients is alcohol...you could take a bit and add some alcohol and see if it thins appropriately (see MSDS)...

            I added some toluene and acetone to some vinyl cement and it brought it back to life (not suggesting toluene or acetone)...
            1988 3888
            Twin Cummins 6BT's 210hp
            Onan 8KW

            Comment


              #7
              Does not melt as others will.

              Sometimes buying a small tube is a better buy then a larger size.
              Be good, be happy, for tomorrow is promised to no man !

              1994 2452, 5.0l, Alpha gen. 2 drive. Sold ! Sold ! Sold !

              '86 / 19' Citation cuddy, Merc. 3.0L / 140 hp 86' , stringer drive. Sold ! Sold ! Sold !

              Manalapan N.J

              Comment


                #8
                Originally posted by Nickp View Post
                One of the ingredients is alcohol...you could take a bit and add some alcohol and see if it thins appropriately



                Click image for larger version  Name:	Horton and the form a gasket 3 .png Views:	1 Size:	144.4 KB ID:	469782


                Update:
                Horton passed away earlier today.
                Doctors say that he died from complications due to a reaction caused by chemical incompatibility.
                RIP


                .
                Rick E. (aka RicardoMarine) Gresham, Oregon
                2850 Bounty Sedan Flybridge model
                Twin 280 HP 5.7's w/ Closed Cooling
                Volvo Penta DuoProp Drives
                Kohler 4 CZ Gen Set

                Please, no PMs. Ask your questions on forum.

                Comment


                  #9
                  Originally posted by 2850Bounty View Post




                  Click image for larger version Name:	Horton and the form a gasket 3 .png Views:	1 Size:	144.4 KB ID:	469782


                  Update:
                  Horton passed away earlier today.
                  Doctors say that he died from complications due to a reaction caused by chemical incompatibility.
                  RIP


                  .

                  LMAO...ur right...shudda been more specific...must have been the sugar in the Amaretto that got 'im...it's as bad as ice cubes with bubbles in 'em...
                  1988 3888
                  Twin Cummins 6BT's 210hp
                  Onan 8KW

                  Comment


                    #10
                    Originally posted by Nickp View Post


                    LMAO...ur right...shudda been more specific...must have been the sugar in the Amaretto that got 'im... it's as bad as ice cubes with bubbles in 'em...
                    Nick..... I was't making fun of YOU.... I just saw an opportunity for a funny!
                    Rick E. (aka RicardoMarine) Gresham, Oregon
                    2850 Bounty Sedan Flybridge model
                    Twin 280 HP 5.7's w/ Closed Cooling
                    Volvo Penta DuoProp Drives
                    Kohler 4 CZ Gen Set

                    Please, no PMs. Ask your questions on forum.

                    Comment


                      #11
                      Originally posted by 2850Bounty View Post

                      Nick..... I was't making fun of YOU.... I just saw an opportunity for a funny!

                      ...I did take it as a funny...thanks...still chuckling...
                      1988 3888
                      Twin Cummins 6BT's 210hp
                      Onan 8KW

                      Comment


                        #12
                        Originally posted by 88fourwinns View Post
                        This stuff should be good that long, is it still semi liquid or all congealed?
                        Still liquid. Thanks.
                        Terry (Retired Diving Instructor and Part Time IT Consultant)
                        1998 Bayliner 2452. 5.7l V8 - Edelbrock 1409 4bbl - Alpha1Gen2 - Solent UK.
                        MMSI 235061726

                        Comment

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