Good Question of the Week: Is Waterproof Ink Safe for Pens?

A student recently inquired: "Hi Marc. I went to a store in Los Angeles today to buy a recommended fountain pen with waterproof refill. The owner did everything possible to dissuade me. She said that the waterproof ink ruins a fountain pen very quickly because the ink dries in such a way that it clogs…

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Good Question of the Week: Is Waterproof Ink Safe for Pens

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