Dirty collectors coins are a thing of the past! A unique process that is already provided in the industry is already available to everyone. The concept is simple, no side effects. A special foam insert was developed to achieve this in the QUADRUM coin capsule. Insert is modified to neutralize harmful air substances inside the capsule, so your coins will be remembered in a non-corrosive microclimate. Advantage of QUADRUM Interception Coin Capsules: Effective protection from discoloration for up to 15 years! Same dimensions as standard square capsules! Capsules with black inserts (no acid and chemical softener) for a perfect fit! Clear, scratch-resistant plastic provides optimal protection for your coins! It is still easy to open and tight. The secret of the QUADRUM intercept is that corrosive gas is bonded to the coin case before forming a bond with the coin. Unlike other VCI (Anti-Vapor Corrosion Agent) with a layer of foam on the surface of the coin. INTERCEPT technology has been used in IT and heavy industries since 30 years ago, providing highly sensitive platinum electronic components · Reliable protection for packaging not only cars and airplane parts during storage and transportation, but also for packaging whole industrial machinery. But museums and archives use this process. Guggenheim Museum, United States National Archives and British Royal Mint are used to protect coins, sculptures, and other works of art.