In the fields of modern industry and automotive electronics, pressure sensors are widely used as key detection components in hydraulic, pneumatic, refrigeration, oil and gas transportation, automotive braking systems, and other scenarios. Its core function is to accurately perceive changes in external pressure and convert them into electrical signals.
However, the sensor contains sensitive circuits and measurement cores inside, which can easily cause performance drift or even failure if exposed to moisture, dust, oil, and vibration for a long time.
Therefore, sealing and sealing protection have become key links for the reliable operation of pressure sensors.
Application Requirements Analysis
The sealing material for pressure sensors needs to have the following performance characteristics simultaneously:
one ️⃣ Waterproof and moisture-proof – prevent water vapor from entering and causing short circuits or signal drift;
two ️⃣ Low hardness and excellent elasticity – balancing mechanical protection and stress buffering of internal components;
three ️⃣ Excellent insulation performance – ensuring circuit safety and signal stability;
four ️⃣ High and low temperature resistance and aging performance – suitable for complex working conditions from -40 ℃ to 250 ℃;
five ️⃣ Single component system, easy to operate – convenient for production automation and batch process control.
Recommended product by Yilian: SIPC 2130 silicone adhesive sealant
SIPC 2130 is a neutral dealcoholized single component silicone sealant designed specifically for electronic devices and sensors.
It performs well in waterproof sealing, dielectric insulation, high and low temperature resistance, chemical corrosion resistance, etc., and is suitable for bonding and potting protection of various substrates (such as metal, ceramic, plastic, PCB).
Key Features
Low viscosity and good flowability: suitable for comprehensive sealing of complex internal structures;
Combining high mechanical strength and flexibility: balancing structural stability with cushioning and shock absorption;
Excellent insulation performance: effectively preventing leakage and corona phenomena;
Wide temperature range stability: temperature resistance range -60 ℃~220 ℃, suitable for alternating cold and hot environments;
Resistant to engine oil, transformer oil, acid and alkali: long-term contact without failure;
Low odor, low white mist, non corrosive: safe for metal and sensitive electronic components;
Long term aging resistance: no yellowing or oil leakage after curing, with a service life of up to 20-30 years;
Environmental and food grade certification: Compliant with RoHS and related safety standards.
Application scenario examples
Automotive pressure sensors (such as tire pressure monitoring TPMS, brake pressure sensors)
Industrial pressure sensors (hydraulic systems, gas detection systems)
Fluid control and water pressure monitoring sensors
Intelligent home appliance pressure detection module
Application scenarios of Elaplus sealant in sensors
In these scenarios, SIPC 2121 not only provides reliable waterproof sealing, but also maintains stable performance under long-term vibration and temperature changes, making it an efficient solution to replace traditional two-component sealing systems.
Compared with traditional epoxy or polyurethane sealant, SIPC 2130 silicone has better flexibility and stability in high and low temperature cycling and chemical corrosion environments.
Its low modulus structure can effectively absorb the thermal expansion and contraction stress of internal components, maintaining stable signal output of the sensing chip;
At the same time, the neutral curing system avoids corrosion of metal terminals, PCB copper foils, etc., significantly improving the long-term reliability of pressure sensors.
Tags: ELAPLUS · SIPC2130 · Pressure sensor encapsulation · Electronic sealing protection · Waterproof sealant
