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Why buy straps that are ultrasonically welded vs sewn?

March 25, 2022 2 min read

As part of our ongoing education, we thought we’d answer the question about welded vs sewn straps.  

What is ultrasonic welding?
The ultrasonic welding process uses ultrasonic, high-frequency acoustic waves instead of heat or electricity.  As two components are held under pressure, the ultrasonic welder emits sound waves that travel through the materials.  When the waves locate the contact point, they cause the materials to vibrate, which generates friction, creating the heat that melts the components.  Once the waves have finished, the materials cool and harden, creating a resilient bond.

What does this mean for hook and loop?
Welding hook and loop is a common application of ultrasonic welding.  The ultrasonic welder creates a bond that is stronger than one achieved by sewing.  As a result, the hook and loop straps have the strength equivalent of one solid piece of material, creating a reliable bond.  Ultrasonic welding is an efficient method for securing both the hook to the loop, and a ring to the strap.

Why are most of the straps sold on TheStrapStore, welded and not sewn?
While the majority of hook and loop cinch straps we sell are fabricated using ultrasonic welding we are starting to offer more that featured sewing. Some the new offering includes the Cord-Lox Line of Fasteners. 

Meet A Guide:
Then looking for a quality fabricator who knowshowto ultrasonically weld andwhento suggest sewing instead, Speedtech is uniquely qualified to support you.We have over 25 years of experience in hook and loop and specialty fasteners.  Consulting experience trusted by Product Engineers, and Designers as well as Quality and Processing Engineers.

Contact us today for one-one-one guidance, application solutions, pricing and more.