Air Tite Model T - Black Ring Capsule - 20mm

Air Tite Model T - Black Ring Capsule - 20mm
Air Tite Model T - Black Ring Capsule - 20mm
$1.73
21 In Stock 
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Expected to ship by - 05/22/2026
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Air Tite Model T - Black Ring Capsule - 20mm

Buy Air Tite Model T - Black Ring Capsule - 20mm

Air-Tite Model T Black Ring Coin Capsule - 20mm

Every coin that you have in your collection has a history and is valuable, be it sentimental or monetary. Exposure- to air, to moisture, to the oils of a casual touch- is the most dangerous thing to that tale. Air-Tite Model T 20mm capsule is more than a holder, it is a vault and has been designed to provide the best in permanent protection with archival quality to keep your treasures in original condition so you can share them with your future generations. This capsule will give the maximum amount of peace of mind to collectors who are aware that the best thing they can do is preserve.

Key Features & Benefits

  • Real Air-Tite Brand: Built in the USA with the best materials possible to ensure that you will not receive a cheap knock off product but you will get the real product, a product you can rely on.
  • Archival-Safe Construction: The capsule is cast in a crystal clear non-yellowing acrylic that is 100 percent Polyvinyl Chloride (PVC) free and other toxic plasticizers that can permanently damage your coins.
  • Safe Black Ring Fit: An inactive, black polyethylene foam ring fits snug and secure on your 20mm coins with no rattling and a beautiful visual frame to display your coins to optimum effect.
  • Easy Viewing: You can view both ways, the obverse and reverse of your coin because the two-piece, scratch resistant design fits together firmly, making a tight seal.
  • System Compatibility: Being an essential part of the Model T system, these capsules are all the same outside diameter, to be employed in compatible storage tubes and boxes, and are easily gathered in convenient and orderly manner.

In-Depth Product Deep Dive

The Air-Tite Standard: American-Made, Collector-Trusted

Since 2001, thousands of discriminating coin collectors and investors all over the world have depended on Air-Tite. Unlike cheaper plastic holders imported and which may be a gamble, all original Air-Tite capsules are manufactured in the United States. They are formed using a highly precise injection-molding process using virgin acrylic, a hard, crystal-clear plastic chosen because it is chemically stable and pure. The acrylic also has a unique non-yellowing compound that makes the capsule capable of remaining clear even after decades, without ever obstructing the beauty of your coin. This commitment to high quality material and production processes means it is not just a long lasting product but one that could stand the test of archival-safe requirements to be museum grade and be kept in the long term.

The Science of Protection: Why PVC-Free Matters

The term PVC-Free is something that can never be compromised by a serious collector and there is a good reason why. Polyvinyl Chloride (PVC) is a group of chemicals used to add to plastics to make them soft and bendable. The enemy of any coin collection is PVC which is found frequently in cheap flips and albums. Eventually, mainly due to the effects of variations in temperature and humidity, the plasticizers in PVC break down and are released which causes a reaction with the metal surface of the coin forming an acidic solution. The by-product of this process is a devastating by-product that is generally presented in the form of sticky and greenish looking slime or a milky and hazy film. Nor is it mere tarnish; it is active corrosion, capable of permanently etching the surface of the coin to leave minute pits, and causing irreparable damage to the coin with effects on the numismatic value which may be disastrous.

The Black Ring Advantage: Secure Fit and Elegant Display

The functional purpose of the inner ring of this capsule is also aesthetic. Mechanically, that is the secret of a good fit. Coins, especially older coins may differ slightly in diameter and circulated coins may have rim wear which can result in the rattling of the coin in a direct-fit holder. Such rattling can cause micro-abrasions and ruin this coin over time. The black ring is made of a special non-reactive, cross-linked polymethylene foam (most often known by the commercial name Volara) that is intended to compress a bit, gripping the coin firmly and centering it. It is non-PVC, chemically stable material that will never degrade, discolor or tarnish your coins even under the worst of long term storage conditions.

The black ring provides a striking, lovely frame to the coin as a mat would to a work of fine art. The end result of this so called framing effect is that the fine details of the silver and gold coins are now brought to the front of the picture and lends itself a professional as well as a visually stunning effect.

Practical Guidance for Collectors

How to Secure Your Coin in 3 Simple Steps

  1. Preparation Required: Place on a soft clean surface, a folded towel or numismatic mat. This will no longer leave scratches or any form of damage in case the coin or the capsule falls accidentally. Make use of edges only and preferably with soft cotton gloves in order to avoid transferring corrosive oils on your hands to the surface of a coin.
  2. Mount the Base: Put the black ring of foam in the bottom of the capsule which is the deeper half of the two. Gently put your 20mm coin in the center of the ring. It has to rest steadfastly by no compulsion.
  3. Topping the Capsule: Take off the cover, the bottom, flatter half and place it on the bottom. Fold down under pressure and smoothness the whole way round the edge. You hear and feel a snapping sound/sensation when the two halves snap together to create a tight airtight fit to keep the elements out and off your coin.

Building Your Storage System: The "Model T" Advantage

The T in Model T is a significant element of the Air-Tite system where organization is significant to the collector. In this letter, a specific outer diameter of 36.5mm of the capsule is given. This is intentional standardization, such that the capsules of Model T can be perfectly aligned with an ecosystem of storage devices in their own right. It is with this system that you can have a clean uniform and space-saving library to suit your collection regardless of the size of the coins that you have stored in there.

To store encapsulated coins in large quantities, we have storage tubes which are made to store up to 20 encapsulated coins at a time and are found in our Air-Tite Model T Storage Tubes.

Accessible storage and viewing of up to 50 coins in our Guardhouse Medium, Double Row Capsule Box which is made of high quality material.

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