Exploring SERFs and their response to vibration

When considering self-engaging reclosable fasteners (SERFs) for various applications, an important factor is to assess how they perform under continuous high-frequency, low-amplitude energy—commonly known as vibration. Compared to traditional fasteners such as screws, bolts or double-sided adhesive systems, SERFs offer distinct advantages in managing vibrational energy.

Understanding vibrational energy

Vibration involves repetitive forces applied to the fastener over time. These forces can come directly from contact with the mounting surface or from transmission through the structure. Common sources of vibration include:

• the operation of motors or engines
• wheels moving across roads or rails
• exposure to sound

Vibration presents a challenge for fastening systems because their resistance to fatigue-based failure is determined during manufacturing.

How different fastener types handle vibration

• Mechanical fasteners (e.g. screws, bolts): rely on tensile strength, torque loads, and the effectiveness of threads to prevent rotation and disengagement under vibration forces.
• Adhesive systems: use surface engagement combined with materials such as viscoelastic gels and compressible foams to absorb or dampen energy and reduce vibration effects.
• SERFs: fasteners handle vibration through:
  • recoverable deflection of the engagement elements and backing material
  • tensile strength of the engagement elements
  • friction between the engagement elements

When combined with adhesive systems, SERFs perform even better, offering enhanced resistance to energy transfer and attachment failure.

Duotec^® SERFs: engineered for vibration resistance

Binder’s Duotec^® product family includes variants specifically designed to resist disengagement caused by vibration. The 42 and 50 product variants, for example, feature woven yarns in their engagement elements, which provide outstanding flexibility and durability to vibration forces.

For more information about the Duotec^® products and to find the best solution for your application, explore our website or contact a Binder representative.