Rust proof paint - Running gear restoration

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  • MARKMIDGE
    S2Forum Addict
    • Nov 2014
    • 339
    • Country: United Kingdom

    #1

    Rust proof paint - Running gear restoration

    Just wondering what people are using to paint subframes, struts etc. I have been using Por15 but its a real faff with the prep, then the wash off then the paint, then the top coat and the time between drying and have had some rust come through on stuff that I have on the shelf that has never been fitted.

    I have a restoration to do, subframe and wishbones will be dipped and galvd and struts will be bead blasted then painted, would also be nice to be able to spray paint which you cannot do with Por15 without the risk on instant death.
  • SteveH
    Super Moderator
    • Jul 2003
    • 4460
    • Country: United Kingdom

    #2
    Powder coating works well
    91 Modded 3B
    14 A6 Avant Black Edition

    Comment

    • s2driveruk
      Super Moderator
      • Jul 2003
      • 12696
      • Country: England

      #3
      Yep powder coaring with a decent, liberal zinc primer has worked well for me on subframes. Rust will always eventually return...its a ****** like that
      sigpic

      1992 3b S2 Coupe

      Comment

      • Error404
        Super Moderator
        • Mar 2007
        • 19789
        • Country: United Kingdom

        #4
        I have tried most. Powdercoat chips and the corrosion spreads underneath then flakes off. POR15 is really inconsistent - sometimes excellent sometimes useless. Seems to relate to humidity during application. Best (most consistent and most durable) I have used is zinc rich 2k primer followed by 2k epoxy followed by 2k acrylic topcoat.
        Panthero Coupé quattro 20vt
        Indigo ABY coupé
        Imola B6 S4 Avant

        Comment

        • Martin62
          S2Forum Enthusiast
          • Jan 2011
          • 187
          • Country: United Kingdom

          #5
          I used rust bullet. Minimal prep and can be sprayed. Did my subframes etc in 2012 and all seems good so far

          Comment

          • treebirch
            S2Forum Addict
            • May 2014
            • 244
            • Home: United Kingdom Current: France

            #6
            Powder coat is ok but it chips really easily because it is so hard. I've been using Durepox, it's mega stuff, cheap (relatively), un-fussy to apply and very very durable. It's used in marine applications and can be bought on eBay.

            Comment

            • MARKMIDGE
              S2Forum Addict
              • Nov 2014
              • 339
              • Country: United Kingdom

              #7
              Thanks for the many and quick responses, I have a spray booth for doing wheels so really want to do it myself rather that pay someone to powder coat, also prefer to paint wheels rather than powder coat as the finish is better and due to the large chipping potential. I will try some Durepox and Rust Bullet and let you know how it goes.

              Comment

              • s2driveruk
                Super Moderator
                • Jul 2003
                • 12696
                • Country: England

                #8
                Which durepox products did you use out of interest?
                sigpic

                1992 3b S2 Coupe

                Comment

                • treebirch
                  S2Forum Addict
                  • May 2014
                  • 244
                  • Home: United Kingdom Current: France

                  #9
                  Originally posted by s2driveruk
                  Which durepox products did you use out of interest?
                  Resene, from Boatpaint.co.uk no primer required, you can bush, roll or spray it on.

                  Comment

                  • funked up
                    S2Forum Buff
                    • Jan 2018
                    • 38
                    • Country: United Kingdom

                    #10
                    I’m currently going through mine sub frames shot blasted the n zg190 cold gave with tractor enamel. The rest por15 which is laborious over coated with tractor enamel. Only time will tell

                    Comment

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