Light, Heat, Handling: 5 Mistakes That Damage a Card
The most common preservation mistakes collectors make — and how to fix them before they bring down your cards' value.
Most of the damage we see on cards submitted to us doesn’t come from an accident — it comes from storage habits picked up without a second thought over years.
1. Displaying cards in direct light
A display case or frame exposed to daylight gradually fades the ink, especially bright colors. The effect is slow, cumulative, and irreversible — often only noticed when comparing against an identical card kept out of the light.
2. Storing in a humid environment
A basement, a garage, or even a poorly ventilated room in winter can be enough to create humidity levels that warp cardstock and cause staining. Aim for a stable environment, ideally between 30 and 50% relative humidity.
3. Handling cards bare-handed and often
Oil and sweat from fingers can, over time, dull a card’s surface, especially the holo layer. For valuable pieces, handle by the edges only, or directly through the toploader.
4. Stacking cards with nothing between them
Repeated friction between two unprotected cards, especially in a poorly organized binder, creates micro-scratches invisible to the naked eye but detectable during grading.
5. Never rotating a framed or displayed card
A card permanently framed on the same face for years ages asymmetrically. If you display a card, rotate its orientation periodically or limit continuous exposure time.
How to tell if the damage is already done
If you’re unsure about the current condition of a card you’ve held onto for a long time, a valuation based on current photos gives you an objective read — and, if needed, a chance to adjust your storage habits before things get worse.
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