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Pelikan 120 & 140 Nib Collar


Gerold

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Seems that I was wrong about the corrosion issue. I saw bubbles generated at the rim of the aluminum collar, looks like the galvanic corrosion happens among the ink solution, aluminum and gold. Theoretically the bubbles should be generated on the gold electrode, while my case is that they appears on the aluminum since I saw bubbles on the aluminum part only touching the plastic feed.

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