What are the two most common banding seals?

• A. Crimp seal
• B. Crimp seal and Wing seal
• C. Wing seal
• D. Tape seal

Answer: (B)

In banding, the joint that holds the strap together is made by a seal that is applied and then secured with a tool. The two most common seals you’ll see are crimp seals and wing seals. A crimp seal is a small metal piece placed over the strap end and then deformed with a crimping tool to bite into the strap and lock it in place, giving a strong, permanent joint suitable for heavy loads and many strap types. A wing seal is a one-piece seal with little wing-like extensions that bend and lock when the strap is tensioned, often used with plastic straps for quick, reliable fastening. These two are the most common because they work well across a wide range of strap materials and applications and are supported by widely available tools. Tape seals aren’t used for standard banding joints, and relying on a single seal type doesn’t offer the versatility that crimp and wing seals together provide.