Hi Meghan,
Can you please provide more detail about what you are stamping on the folders and what you are using the folders for?
Generally, write on the folders with a 2b or lighter pencil, using a vinyl eraser if necessary. If the folders become damp or wet during any potential environmental issue (such as high humidity) or collections disaster (leaking pipes, fire, etc.), the ink could bleed. This not only becomes unreadable, but creates a potential for transfer onto the items inside the folders or items nearby.
Best,
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Lissa Kramer
Washington State Historical Society
Tacoma WA
(218) 341-4241
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