3 Types of Seals for Bulk Drum Security

3 Types of Seals for Bulk Drum Security

Posted by Steve Diebold

For security reasons, it is usual practice to use tamper evident seals on bulk drums containing both liquid and dry goods. Liquids such as juices and spirits, as well as dry and liquid food goods and additives, are stored in drums that may be monitored for signs of tampering or opening to ensure their authenticity and safety. The same applies to the bulk packaging of many chemicals, medicines, and industrial or agricultural products.

In general, products are more likely to be sealed if they are of higher value or pose a greater potential risk to consumers' safety. To prevent tampering or stealing, security seals are essential if a drum contains anything potentially harmful, something intended for human consumption, or something with significant monetary worth. The same holds true for identifying items with a high potential for loss or high market worth.

Any of these valuable goods might be damaged while being transported or stored. This is why sealing is very essential to keep bulk drums and barrels safe. Even more, security seals, when used properly, can additionally give improved and faster data information. With such a variety of usages, it is such a good thing that American Casting & Manufacturing produces three varieties of seals for use on drum liners and bulk drums.

1. Wire Seals

The most popular plastic and wire security seal is the PSW97. The wire in this seal is locked into place with this ingenious seal by sliding it into a notch in a locking ring.

After that, it's passed through the seal's openings and pulled until it's about half an inch from being completely secure. The lock is manually secured once in place. Moreover, you'll hear a distinct "click" when you press the stainless steel plunger far enough into the seal body to pull the wire completely within.

Once the wire is in place, the seal is totally secure and cannot be broken. It may be easily seen if someone tries to open it by force or tampers with it. Sometimes a plastic pull-up seal is used instead of a key in this kind of locking mechanism. A plastic security seal, however, may not always fit through the hole, and certain ring locks may even be able to break a plastic seal.

2. Padlock Seals

Padlock seals, such as the AC&M 8001 or XPC-2, are a popular substitute for wire seals. They are made of 100% plastic with a wire hasp attached. However, when plastic won't hold up, metal type WP101 is utilized since it is much more durable.

Such conventional seal designs have found widespread application in the sealing of many types of locking systems including drums and barrels. Although metal seals have been in use for more than a century, plastic padlock seals have developed from their humble beginnings as simple translucent plastic with galvanized wire to their sleek, modern incarnation as acrylic encased seals containing bar codes and stainless hasps.

When the basic locking hasp is placed, it locks into place and stays there until it is damaged or cut. Steel hasps can be designed for tool-free removal or for use with a cutting tool. The only way to break the notched hasp is to bend it very sharply by hand.

3. Plastic Strap Seals (Secondary Sealing for Drum Liners)

Drums containing dry materials and lined with plastic should be secured. Plastic strap seals will be used for this secondary sealing. In the event that the primary seal is damaged, the secondary one can be used as a replacement. The contents will be checked to make sure they have not been tampered with. These two types of seals are frequently seen on bags as well.

There are 2 different seals made by AC&M that may be used for the same purpose of securing a drum liner. Both the PS-360 and the DTZIP models have gripping teeth to prevent the seal from opening up when it is closed around the liner. Or, you can order them without the teeth, which makes a smooth band that won't damage sensitive materials or let water in.

When comparing these two seals, DTZIP is better due to its length, durability, and variety of customization choices. In specific cases, the PS-360 is recommended. It has a high-quality, plastic-only seal with a printed-tag-securing tab. This is helpful when additional information or notations must be added to the contents after the package has been sealed.

Additionally, when working with substances that are incompatible with poly seals, many people turn to nylon pull-up seals (also known as security wire ties). The bigger mode BT4LH works well with bag liners and features a locking tab made of corrosion-resistant stainless steel.


While these are the most prevalent approaches to drum and liner sealing, there are a wide variety of other combinations and solutions available. Feel free to contact us with any inquiries you may have regarding our seals or the sealing of bulk drums, bulk liners, or other containers. Globally recognized companies in the food, chemical, industrial, and agricultural sectors are among AC&M's clients.

During business hours, you may speak with a knowledgeable professional who specializes in seal applications at any time. You may reach a seal expert at our headquarters and manufacturing facility by sending an email to info@seals.com or calling 1-866-331-2592 in the United States or 1-516-347-9010 internationally. As an alternative, you may visit our website (www.seals.com) to find a sales or service location outside the United States.