Zinc sheet?

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Zinc sheet?

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  • #730179
    MikeK
    Participant
      @mikek40713

      My local art supply store has a bunch of zinc sheets, 16 gauge 12″ x 12″, that they want to get rid of for a low price.  Does zinc sheet have any use in model engineering, or the workshop?  A bedplate?  Could maybe carve it to simulate grout joints in a shop floor?  A display stand if it’ll take paint, I suppose.

      Mike

       

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      #730190
      Michael Gilligan
      Participant
        @michaelgilligan61133
        #730287
        Speedy Builder5
        Participant
          @speedybuilder5

          For zinc plating, I use cast off wheel balance weights – as found in gutters and especially on roundabouts  !

          #730302
          bernard towers
          Participant
            @bernardtowers37738

            Speedy you sound like a proper Skip diver!!

            #730303
            MikeK
            Participant
              @mikek40713

              Hmm…I didn’t think about using it for zinc plating.

              #730311
              Nicholas Farr
              Participant
                @nicholasfarr14254

                Hi Bernard Towers, nothing wrong with being a “Skip Diver”, although I’d call it an upcycling technician, not that much of the scrap I collected over the years in my day jobs, ever made it to the skip in the first place.

                Regards Nick.

                #730321
                John Haine
                Participant
                  @johnhaine32865

                  Mike, we wouldn’t mind a few sheets for my wife’s etching.

                  #730342
                  MikeK
                  Participant
                    @mikek40713
                    On John Haine Said:

                    Mike, we wouldn’t mind a few sheets for my wife’s etching.

                    I’m in the US.

                    #730354
                    John Haine
                    Participant
                      @johnhaine32865

                      Oops!  There’s a small and specialist market for etching supplies, but a print workshop would probably be keen to get some low cost zinc sheet.  But I guess the post from US would cost more than the material!

                      #730355
                      MikeK
                      Participant
                        @mikek40713

                        The artist supply store told me, I think, $17US for 16 gauge 12″x12″…which seems pretty low to me.  They said they bought a lot of it, but it never sold.  They have copper too, but that’s way overpriced.

                        I may pick up a sheet of the zinc and have a go at plating…I have some bolts on my old car that could use re-plating.

                        #730392
                        John Haine
                        Participant
                          @johnhaine32865

                          That’s a good price.  T N Lawrence, one of the main printmaking suppliers over here, would charge about £50 for an equivalent size, or say $60.  That is with one side coated with acid resist through which the artist scratches lines to make a drawing.  Not surprising that a retail store wouldn’t sell much as the process is complicated and needs lots of space and specialist equipment such as acid baths and an expensive press.  Over here most people seem to use shared workshops.

                          #731422
                          MikeK
                          Participant
                            @mikek40713
                            On John Haine Said:

                            That’s a good price.  T N Lawrence, one of the main printmaking suppliers over here, would charge about £50 for an equivalent size, or say $60.  That is with one side coated with acid resist through which the artist scratches lines to make a drawing.  Not surprising that a retail store wouldn’t sell much as the process is complicated and needs lots of space and specialist equipment such as acid baths and an expensive press.  Over here most people seem to use shared workshops.

                            I picked up a piece of this today.  They supply to artists and art students for the several very close by universities.  They said it didn’t sell because it just didn’t work well compared to copper.  Yeah, but copper is very pricey.  Maybe zinc requires different chemicals.

                            I see what you mean about one side being coated with acid resist.  It’s a tan-orange color, which looks like I can sand or torch off.

                            Oh, and I asked…they weren’t interested in doing international orders.  The shipping would have been a wopper, anyway.

                            #731428
                            John Haine
                            Participant
                              @johnhaine32865

                              Thanks for asking anyway Mike.

                              Copper is etched mainly with ferric chloride, like printed circuit boards, so easily available. It seems that ferric chloride is considered unsafe for zinc now and nitric acid is preferred. So if a print workshop isn’t equipped for zinc etching but mainly for Copper that’s what would be favoured I guess.  The workshop my wife uses mainly deals with zinc, I asked about etching a clock dial and they would have needed to change the solution which wouldn’t be popular!

                              #751206
                              Mick Bailey
                              Participant
                                @mickbailey28509

                                I used to use ferric chloride for PCB etching but when it got too expensive switched to hydrochloric acid + hydrogen peroxide. It’s fast acting and I also used it to etch nameplates in brass. It gives a good depth for cold enamel filling and a precise edge without undercut. I’ve also used the same mix on aluminium enclosures. Not tried it on zinc, though.

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