Core performance requirements for buzzer potting: 

Thermal conductivity ‌ High-power buzzers require a high thermal conductivity. ≥1.0 W/m·K The potting compound helps prevent heat buildup. 

Insulation ‌ : Volume resistivity required ≥1×10^15 Ω·cm Withstand voltage ≥18 kV/mm.

Weather resistance ‌ : Adaptation -60℃ to 200℃ Temperature changes, salt spray resistance, and chemical corrosion resistance .

Durability Reduces damage to internal components caused by vibration, thereby extending service life. 

Stable sound quality The colloid secures the vibrating components, preventing changes in sound quality due to environmental variations. 

Easy installation It can be directly installed in locations requiring sealing. 

Epoxy resin potting compound Suitable for various types of buzzers, including piezoelectric buzzers and electromagnetic buzzers. This potting compound features excellent electrical insulation performance and mechanical protection, providing effective protection for buzzers. 

The epoxy resin potting compounds developed and produced by Hinnel boast an extensive portfolio of products and technological expertise in key performance areas such as high-temperature resistance, high toughness, low stress, high strength, strong adhesion, and crack resistance, enabling them to meet your diverse application requirements. 

Hinnel epoxy potting compound What are the advantages of using it on a buzzer? 

✅ Strong adhesion and high structural stability 

After curing, the epoxy potting compound adheres to the metal housing of the buzzer, PCB The substrate—such as boards and plastic terminals—is firmly bonded, preventing component displacement or solder joint detachment caused by vibration or drops during transportation or use, thereby significantly enhancing the structural reliability of the buzzer. 

✅ Good flame retardancy, suitable for safety-critical applications 

Most epoxy potting compounds can be... UL94 V-0 This product has a flame-retardant certification, meaning it is not easily ignited by open flames and does not produce dripping during combustion. It effectively prevents the spread of fire, making it ideal for applications such as buzzers used around power supplies and kitchen appliances—areas where fire safety is a critical requirement. 

✅ Excellent insulation performance and high electrical safety 

After curing, the epoxy potting compound forms a dense insulating layer that effectively isolates the energized components inside the buzzer—such as coils and electrodes—from the external housing. This prevents leakage current and short circuits in humid or dusty environments, thereby meeting the stringent electrical safety requirements of household appliances and security devices. 

✅ Stable performance and excellent chemical resistance 

After curing, epoxy potting compounds exhibit stable chemical properties, resisting acids, alkalis, and organic solvents. They are also less susceptible to degradation from everyday environmental factors such as detergents and moisture. Meanwhile, their temperature resistance range is broad. - 40℃ ~ 120℃ It can adapt to temperature changes in most indoor environments, and its performance is unlikely to degrade. 

In summary, the epoxy encapsulant for buzzers plays a crucial role in enhancing the safety and stability of equipment. With its outstanding flame-retardant properties, resistance to chemical corrosion, and excellent adhesion and sealing performance, it provides effective protection for buzzers, ensuring the long-term reliable operation of the equipment. Selecting the right epoxy encapsulant is a key step in improving the performance and reliability of electronic devices. 

Note: Some content is sourced from the internet; please contact us for removal if there is any infringement.

°   Send an email to  sales@hinnel.com Email ,

°   Call technical support  +86-18301723907 Consult.