It is surprisingly difficult to find waterproof calligraphy ink. When Ziller inks came to my attention in 2015, I had come to the conclusion that no ink can truly be unaffected by water. It felt fabulous to be proven wrong! If you like to incorporate watercolor into your calligraphy and/or illustration work — or you want to make durable envelope calligraphy, I suspect you’ll love this ink as much as I do.
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