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Kompac III on GTO 46 scumming and can't find a fix. (Pictures in post)

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  • Kompac III on GTO 46 scumming and can't find a fix. (Pictures in post)

    Our GTO is an older unit but is still our workhorse, but can't run screens anymore, and ink builds up on sides and edge of plate. Kompac forms are new and we typically run 1/8 strip on water (distilled) unit.
    Fountain solution - Formula 300
    Plates - AB Dick Elite (Mark Andy) / Fuji
    Ink - SunChemical
    Ink on lead edge and sides Screens plugged

  • #2
    There are a whole list of things to check:

    Ink form rollers to plate/oscillators
    Calcification of rollers
    New blanket
    Packing of blanket
    Ink with more tack -or increase current ink`s tack-
    Dampening fountain temperature
    Proper development of plates

    A few pointers to get you started hope that helps good luck


    • #3
      Hello cwatts,

      The first picture tells you all !!!!! poor roller settings.

      With correct Inking/Dampening Roller setting - you should just see a "Thin Scum Line" at the leading edge of the plate bend, across the width of the plate,

      it should be about - 1mm thick line.

      Regards, Alois


      • #4
        Hi cwatts,

        There is also a ton of calcium contamination. Rollers look extremely hard and glazed, look at the shine. Try Calcium Slayer and Flush. No better way to attack a calcium problem.


        • #5

          What you are seeing IS - INK SHINE !


          • #6
            Hello cwatts,

            Question: The Plate Cylinder Bearers - look DULL, are they ??. When they should look "Bright and Shiny "

            Regards, Alois


            • #7
              what time did you replace those rollers on water unit? looks like you need a new set


              UltimateDuploSmartsoft (Presswise)4OverStandard FinishingKBA
              UltimateDuplo4OverStandard FinishingKBAKBA

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