Digital BW, The Print

Hi Duane

<...whereas the Tilex
<Fresh Shower has Alkylpolyglycoside, which is an environment friendly
<non-ionic surfactant, along with alcohol as solvent, a chelating EDTA
<agent to bind heavy metals, and fragrance

I would stay away from anything containing EDTA if it is to pass through precision, reasonably fragile metallic components such as the piezo heads.  EDTA will definitely erode copper, zinc, iron, etc.  Yes it will be little bits but continued use will accrue and such precision and intricate things as piezo heads don't need much internal erosion before the clog from hell arrives or they don't function as well as they ought to.

EDTA and its cousins are all part of my art conservation chemical shelf.

My two cents.


Mark MacKenzie
Art Conservator & Wet Plate Photographer
Alcalde, New Mexico

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