Edge Bonding and Corner Bonding

Edge bondings or corner bondings are adhesives designed to contribute to the stability of sensitive and/or higher components, capacitors or battery cells on printed circuit boards. In addition, these edge or corner bonds ensure the reduction of stresses in sensitive connections, even under high shock and vibration loads and many fatigue cycles. They offer high adhesive strength as well as very good temperature and chemical resistance.

Most edge bonders from Hoenle are stable UV-curing adhesives which, depending on the adhesive, also thermally post-cure in shadow zones. Due to their low curing temperatures, they are also suitable for temperature-sensitive components. After curing, they exhibit low shrinkage behavior.

On request, these adhesives are also available in red or fluorescent coloring to ensure optimum quality and application control: The red coloring or fluorescence makes the quality of the bonding on each individual component easily visible and controllable, even in mass production. The red color in particular stands out visually from the mostly green PCBs.

In the table below you will find a selection of Hoenle adhesives that are suitable for edge bonding or corner bonding. Other products or customized solutions are available on request.

To download the technical datasheets (TDS) please click on the adhesive name.

Adhesive Application Areas Viscosity [mPas] Base Curing * Special Properties
- 7,000-12,000 epoxy thermal
  • Black color, yellow fluorescent, reworkable above 150°C, jettable, low in halogens, very suitable as edge bonding adhesive
  • Frame material for frame & fill applications
9,000-14,000 (Rheometer, 10s^-1) epoxy UV secondary heat cure
  • Stable frame compound
  • high ion purity
  • electronic grade adhesive
  • high temperature conductivity
  • low water absorption
  • UL94 HB test passed
- 8,000-17,000 (Rheometer, 25°C, 10s^-1) acrylate UV secondary heat cure
  • Very high adhesion to metals and sintered materials
  • ideal for bonding large components on circuit boards (corner bonding)
  • Bonding of flexible components;
  • Attaching components on PCBs
4,000-8,000 acrylate UV VIS
  • dry surface after curing
  • flexible and tear-proof
  • excellent adhesion to many plastics

*UV = 320 – 390 nm          VIS = 405 nm

Contact And Support

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Our Bonding and Curing System Solutions

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