School of Knowledge
Preservation

Preservation: Keep Your Ink Alive

UV light, humidity and acid are the enemies. Here is how to fight them.

Sep 4, 2026·6 min read

Light is the enemy

Ultraviolet light fades ink — especially felt-tip markers. Display pieces behind UV-filtering glass or acrylic and away from direct sunlight. Rotate your displays.

Acid-free everything

Use acid-free, archival-quality mats, sleeves and backing boards. Standard cardboard and some plastics release chemicals that yellow paper and degrade ink over time.

Stable climate

Keep collections in a cool, dry place with stable humidity. Attics and basements are the worst places for autographs.

Baseballs and objects

Store signed balls in UV-protected cubes and avoid handling the signature panel. Oils from fingers can damage ink.

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