Wireless earphones have become an essential part of our daily lives, providing seamless connectivity and high-quality sound. However, beyond their sleek design and advanced audio technology, strong and reliable bonding solutions play a crucial role in ensuring durability, performance, and longevity. Adhesives are extensively used in bonding wireless earphone and charging cases, bonding various components to withstand daily wear and tear.
Solution for Consumer Electronics
Below, we detail the bonding substrates and application requirements for key adhesive bonding applications in earphones and charging cases.
Speaker Bonding & Sealing
Bonding substrates: Copper, Polycarbonate + Glass Fiber (PC+GF), Aluminum
Application requirements: The speaker diaphragm and housing must be securely bonded to prevent sound leakage and ensure optimal acoustics.
Magnet Bonding in Charging Box
Bonding Substrates: Nickel-plated magnet, PMMA (Acrylic), PC (Polycarbonate)
Application: The charging box contains small magnets that help secure the earphones in place while charging.
Related article: Magnet bonding adhesives
Earphone speaker & FPC flexible circuit board Bonding
Bonding Substrates: Flexible Printed Circuit Board (FPC), metal contacts
Application: The adhesive should offer excellent electrical insulation, heat resistance, and lightweight bonding to maintain optimal signal transmission.
Related article: FPCB Interconnecting and Bonding Solution
Housing & Casing Bonding
Bonding Substrates: Polycarbonate (PC), Acrylonitrile Butadiene Styrene (ABS), Aluminum, Glass
Application: The outer shell of wireless earphones and charging cases must be securely bonded to protect internal components from external impact, improving the IPX rating of the device.
Related article:Plastics Bonding – What is the most effective adhesive?
Adhesives used in bonding wireless earphone
For wireless earphone assembly, adhesives must offer strong bonding, flexibility, impact resistance, and sealing properties to ensure durability and performance. Below are some recommended adhesive part numbers based on various bonding applications in earphone and charging box assembly:
| Product Part Number | Benefits |
Devcon PSA Tru-Bond™ 30000/PSA Tru-Bond™ 45000 |
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Devcon Tru-Bond™ DC15000 |
|
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3M™ Scotch-Weld™ Epoxy 6011LV |
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The choice of the appropriate adhesive for bonding wireless earphone assembly depends on the specific requirements of the application and environmental conditions. Each type of material offers its own advantages and is suited to different demands during the manufacturing and usage processes. With many years of experience in the industrial material, Prostech is ready to assist customers in selecting the right adhesives for bonding wireless earphone and providing integrated solutions for production lines to optimize manufacturing efficiency. Contact us for free consultation.
