NGC Conservation: Clear Improvement
May 12, 2026
Even modern coins can develop unattractive residues due to improper storage conditions or non-airtight holders.
When coins are stored in improper conditions, they often end up with PVC residue, and other unsightly and harmful contaminants blemishing the surfaces. Fortunately, NGC Conservation is here to help. NGC s conservationists use a variety of proprietary techniques to remove these harmful surface contaminants, stabilizing and protecting a coin s surfaces. Often, these conservation efforts also improve a coin s eye appeal. After coins are conserved, they are seamlessly transferred for NGC grading and encapsulation.
From NGC