Posted 06 August 2013 - 12:10 AM
I am not aware of any contraindications for this new ink. While rich and intense in color we stopped at a point where we belived any further concentrations of dyes could cause any ink flow issues. As is, it lasts well in the reservoirs of test pens, flushes well and does not cause staining in visualated barrels or sections of our pens. Plunger fillers and converter fillers worked nicely wit it. Of course our testing did not cover every situation. Being super cautious I suppose silicone sacs which stain easily anyway could absorb dye but the stain Is not such that i would expect such staining to affect the color of other ink colors used subsequently. Having said that, our new converter pens are so constructed to allow full force flush of the entire barrel and section with the converter removed.
Not sure that the full answer you are looking for but it's the best I can do at present.
Syd
Syd "the Wahlnut" Saperstein
Pensbury Manor
The WAHL-EVERSHARP PEN COMPANY
and Home of Pensbury Manor Black Hard Rubber Pen Potion No.9
and GREAT KNOBS! for cars