Answer
Mar 25, 2013 - 12:00 AM
Thanks for your question about the Sign Pen S520A by Pentel. This pen is not acid-free. It can be used on canvas but may not have the longevity you would expect because canvas is not the intended surface for this type of pen. You may want to check out these acid-free, water-based pens as an alternative.
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Have a great day!
Rachel
