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QUADRUM INTERCEPT — the square coin capsule with active protection against tarnishing


The patented process, already proven in many different industries, takes coin care to the highest level. Regular capsules and snaplocks limit a coin’s exposure to ambient air and moisture. The highly porous, copper-based INTERCEPT TECHNOLOGY™ material inside the QUADRUM snaplock does even more: it provides active protection against tarnishing because it neutralizes harmful atmospheric gases inside the capsule, so that the coin is stored in a non-corrosive micro-climate. Visit to learn about further details.



Tarnished coins are a thing of the past!

The patented process, already proven in many different industries, takes coin care to the highest level. Regular capsules and snaplocks limit a coin’s exposure to ambient air and moisture. The highly porous, copper-based INTERCEPT TECHNOLOGY™ material inside the QUADRUM snaplock does even more: it provides active protection against tarnishing because it neutralizes harmful atmospheric gases inside the capsule, so that the coin is stored in a non-corrosive micro-climate.

The advantages of QUADRUM Intercept snaplocks:
• Patented INTERCEPT TECHNOLOGY™ with proven, 30-year track record in industries such as aerospace, defense, automotive, electronics, and mining
• Used by the US National Archives, the British Royal Mint, and other renowned institutions
• Active protection from tarnishing for up to 15 years
• No oil build-up, no paint residue, non-toxic
• Available for all coins with a diameter of 14 to 41 mm. See chart in images to match coin with proper mm size.
• Identical dimensions to the standard QUADRUM snaplock capsule
• Capsules with black inserts treated with Intercept material
• Durable, crystal clear, scratch resistant plastic
• Secure closure, yet easy-to-open
• Extensive range of accessories are available

Click here to watch the video on the Intercept Technology.

Price per pack of 6 is $8.99. Capsules include inserts.


Additional information

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Dimensions N/A
Select Size:

14 mm, 15 mm, 16 mm, 16.5 mm, 17 mm, 18 mm, 19 mm, 19.5 mm, 20 mm, 21 mm, 21.5, 22 mm, 22.5 mm, 23 mm, 23.5 mm, 24 mm, 24.5 mm, 25 mm, 26 mm, 26.5 mm, 27 mm, 28 mm, 29 mm, 30 mm, 30.5 mm, 31 mm, 32 mm, 32.5 mm, 33 mm, 34 mm, 35 mm, 36 mm, 37 mm, 38 mm, 39 mm, 40 mm, 41 mm


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