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The tire pressure sensor is a crucial component of the vehicle safety system, and its performance stability, measurement accuracy, and durability are vital. Potting adhesives serve as a key barrier to protect the internal components of the sensor from environmental damage. Therefore, selecting the appropriate potting adhesive is essential for ensuring the long-term stable operation of tire pressure sensors.
1. Required Properties of Tire Pressure Sensor Potting Adhesives:
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Water and Dust Resistance: Prevent moisture and dust from entering the sensor, protecting the circuitry.
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Shock Resistance: Secure internal electronic components, reducing the risk of vibration and detachment during driving.
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Thermal Insulation: Isolate from high-temperature environments, maintaining a stable operating temperature for the sensor.
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Oil Resistance: The potting adhesive should have good oil resistance for circuit boards that may come into contact with oil.
2. Recommended Potting Adhesive Products:
The Xina silicone potting adhesive is a room temperature/warm curing electronic potting material. After curing, it forms an elastic cushioning material with excellent high and low-temperature resistance and weather resistance, while also possessing good electrical and chemical stability.
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Excellent thermal conductivity and flame resistance
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Thermal conductivity coefficient ranges from 0.6 to 3.5 W/m.k
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Low shrinkage and stress on encapsulated components during curing
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Reduces stress and tension caused by mechanical and thermal shocks and vibrations
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Excellent high and low-temperature performance, maintaining elasticity from -50 to 250°C
For example: HNSIL8730 silicone potting adhesive has properties such as thermal conductivity, flame resistance, anti-poisoning, good permeability, long operation time, and fast curing speed. It is suitable for potting coils, circuit boards, etc.
3. Core Application Areas
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Sensor Housing Sealing
Used for waterproof and dustproof sealing at the valve stem or rim installation site, preventing moisture and salt spray from invading the circuitry.
External sensors are directly exposed to the environment, and the weather resistance of silicone can extend their service life.
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Internal Circuit Protection
Covers PCB boards and electronic components, providing insulation, shock absorption, and thermal conductivity, especially suitable for high-temperature environments of built-in sensors.
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Battery Compartment Fixation
When replacing batteries, it is necessary to re-pot the silicone to maintain airtightness and prevent oxidation of battery contact points.
The potting technology for tire pressure sensors is one of the important steps in modern automotive manufacturing. Choosing the right potting adhesive is a key step in ensuring the performance and lifespan of tire pressure sensors. We hope our expertise and experience can help you make informed choices and achieve excellent performance in vehicle safety systems. We look forward to your cooperation!
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Potting Adhesive
Silicone Adhesive
Bonding and Sealing Adhesive
