TruSeal is the South Africa’s largest supplier of Security Seals. Highest quality, most technologically current seals on the market. The evolution of security seals has introduced the possibility for much more sophisticated tracking and monitoring.

The origin of security seals dates back to the days of pharaohs and kings when official seals were carved in wood, stone or metal. The “seal” was pressed into melted wax, used to close documents and containers of valuables while in transit by messengers. The impression of the seal in wax, if replaced with a forgery, or disturbed in any way would indicate to the receiver that the sealed item had been opened and/or tampered with.

In the late 1800s and early 1900s, several companies introduced various mechanical seals to secure rail cars, meters, and bank or courier bags. Originally, there were only a few seal types (mainly made of lead, or tinplate steel), with some variations. Through the last century, uses and number of security seal types evolved into the thousands that are currently available. Growth in rail haul, trucking and over-the-road delivery such as couriers spawned many more seals and seal uses. Then international ocean containers created an entire industry of heavy bolt and cable devices to secure the doors.

Plastics, heavy metal, cable, and wires are now used to make mechanical seals ranging from small and simple lightweight plastic security seals to large iron and steel devices that serve as barriers to unauthorized opening. The evolution of security seals have brought us to highly sophisticated electronic devices with RFID data recording and monitoring functions, remote reading, GPS tracking and more. There are also new adhesive labels and tapes, holographic images, thermal activated inks, and high-tech printed adhesives that leave an impression and/or destroy a printed pattern if the security tape is removed.

By the 1980s the added dimension of a high strength barrier seal became popular in transportation. Now some security seals function both as a strong disposable lock and a seal. This has resulted in three categories of seals:

INDICATIVE SEALS All light duty seals that can be removed by hand or with basic tools such as shears or common household cutters. Indicative seals are the most used and found in the most applications. These include almost any closure, like totes, bags, wheel carts, ballot boxes etc. Also used on stationary closures such as utility meters, valves, cabinets, lockers, bins, and cages.
These are of intermediate strength and require a stronger or larger tool and more effort to cut open than indicative seals. Added strength can help avoid accidental breaking or easy entry, without tools.
This term is now applied to barrier seals that are the strongest and most difficult to cut open. Larger and specialised tools are needed to cut them open. The standard testing for this category requires resistance to specific levels of pull, bending and crushing and requires international certification to be considered a high security seal.
Security seals can be made to work effectively in tamper detection, with appropriate application, a strong and well-enforced program for monitoring, registering, control and inspection, coupled with the use of well-considered and adaptable countermeasures. But the first step is using only the best security seals available. TruSeal is Africa’s number one security seal supplier and manufacturing company. Speak to one of our friendly consultants for advice on which security seal will suit your needs.