Archival Storage Standards
Most memorabilia is destroyed not by fire or flood, but by slow chemical degradation caused by improper storage materials. Standard cardboard and cheap plastic emit gasses that will eat your documents.
The Enemy: Acid and Off-Gassing
Wood pulp paper (common in newspapers and cheap books) contains lignin, which breaks down into acid over time, causing yellowing and brittleness. Furthermore, PVC plastics (found in cheap toploaders and binders) emit hydrochloric acid as they age, which will bond with and lift signature ink.
The Solution: Neutral and Buffered Environments
Mylar (Polyester)
The only acceptable clear plastic for long-term storage. It is chemically inert, will not stick to ink, and does not off-gas. Often sold under the Melinex brand.
Buffered Paper
Archival folders infused with calcium carbonate (pH 8.5). This neutralizes migrating acids from the environment before they reach your document.
Environmental Controls
Materials are only half the battle. You must control the micro-climate.
- Light: Calculate safe limits using our Lux Exposure Tool. Absolute darkness is best for long-term storage.
- Humidity: Use our Humidity Risk Calculator. Aim for a stable 45% RH.
- Handling: Never touch items with bare hands. Oils transfer permanently. Review our handling guidelines.