How to Store Antique Coins to Prevent Oxidation > 자유게시판

Keeping vintage coins free from corrosion it is essential to ensure a stable, contamination-free handling protocol. First always handle coins by their edges using clean cotton gloves or specialized coin tweezers to eliminate the transfer of natural sebum and salts. Minute residues from bare-handed contact can trigger rapid oxidation.

Store the coins in a cool dry place out of UV exposure and thermal fluctuations. High humidity is one of the main causes of oxidation so aim for a stable moisture content under 50% RH. A dedicated environmental chamber or アンティークコイン a dedicated display cabinet with a dehumidifier can help maintain stable conditions.

Opt for museum-grade protective housing such as non-reactive polyolefin coin flips. Steer clear of vinyl coin flips as they can emit volatile plasticizers that induce patina damage. For decades-long protection airtight mylar capsules or non-abrasive mylar envelopes are ideal. They shield the coin while permitting moisture equilibrium from scratches and contaminants.

Do not store coins in paper envelopes as these materials often release lignin and cellulose byproducts that corrode metal. When storage in a container is unavoidable choose one fabricated from pH-neutral board or plastic with a sealed lid.

Never attempt to polish or clean vintage coins. Some mistakenly think polishing enhances value but in reality it removes the natural patina and can reduce value. The only reliable method to prevent tarnish is prevention through proper storage and minimal handling.

Schedule routine checks of your holdings for early indications of tarnish or corrosion. Should you detect any patina development contact a certified coin preservation specialist rather than applying DIY cleaning methods. Through disciplined environmental management your antique coins can be preserved in pristine state for centuries.