The main method to preserve challenge coins is to use acrylic boxes to reduce the contact between challenge coins and air. Do not touch them with your hands and place them in a dry environment.
Detailed instructions for preserving commemorative coins
1. Minimize Direct Handling: Skin oils and acids accelerate oxidation. Always handle coins by their edges. For valuable pieces or frequent handling, consider using soft, lint-free cotton gloves. This simple step significantly reduces the risk of fingerprints inviting tarnish.
2. Individual Protection is Key: Prevent scratches and limit air exposure by storing each coin separately. Use:
Soft Flannel Pouches: Provide a gentle, protective barrier.
Acid-Free Coin Flips: Clear, rigid plastic holders offer excellent physical protection and visibility while being archival-safe.
Avoid storing coins loose together or in materials like PVC or ordinary paper, which can degrade and damage finishes.
3. Control the Environment:Create a stable storage space:
Seal Out Moisture: Place individually protected coins inside airtight containers or high-quality resealable plastic bags (look for polypropylene or archival-safe polyethylene).
Use Desiccants:** Include silica gel packets inside storage containers to absorb ambient moisture effectively. Replace them periodically as they saturate.
Choose a Stable Location: Store your collection in a cool, dry, and dark place. Avoid areas prone to humidity swings (bathrooms, basements), excessive heat (attics, near radiators), or direct sunlight, which can cause fading.
How to safely present your challenge
Challenge coins are very meaningful gifts to us. We always want to display them. We mainly consider using acrylic display boxes, which can isolate air and are transparent. It is convenient for us to display them. In use, acrylic display boxes are more resistant to falling and are not afraid of rain, etc.
How to clean your Challenge Coins
Proceed with caution: Prevention is always better. Avoid using harsh chemicals, polishes not designed for coin metals, abrasives, or household cleaners.
If gentle surface dust removal is necessary, use a clean, soft, lint-free microfiber cloth. Wipe gently in straight lines.
For severely tarnished or valuable coins, consult a professional restorer. Improper cleaning can cause irreversible damage.
Control the quality of Challenge Coins from the source and find manufacturers that can produce high-quality products
www.yh-medal.com is a trusted partner for organizations or individuals looking to commission a high-quality challenge coin. We specialize in crafting custom challenge coins using premium materials and finishes that are selected for their durability and resistance to tarnishing.
Quality Expertise: Our manufacturing process prioritizes detail and permanence, helping your coins look special and resist environmental elements.
Flexible Ordering: We accommodate projects of all sizes, from small custom runs to large volume orders.
Streamlined Process: We guide you from concept to design to final production, ensuring a smooth experience and coins you will be proud to display and keep.
