• Certification
    ISO9001/ISO14001/IATF16949
    ROHS/UL/REACH/FDA
    Mail Contact
    angela.he@elaplus.cc

    +86 13291521819

    Welcome to be our distributor

Industry Application

Home » Industry Application »

Solution for Encapsulation Protection of Filter PCB Board: Optimal Application of PUR 1680 Polyurethane Adhesive

2025-06-05

High performance potting adhesive helps stabilize the operation of electronic componentsIn modern electronic devices, the filter PCB board serves as a key signal processing unit, and its long-term stable operation directly affects the overall performance of the machine. However, the working environment of filters is usually accompanied by multiple challenges such as temperature changes, moisture invasion, electromagnetic interference, etc. Therefore, higher requirements are put forward for the encapsulation and protection materials of PCB boards. Application pain points and encapsulation requirementsFor the special application scenarios of filter PCB boards, the potting adhesive must meet the following performance requirements:Moderate hardness after curing: it should not be too hard to avoid stress damage to the components, nor too soft to prevent inadequate protection. It is recommended to control the hardness at around 80A.Excellent electrical performance: It has good insulation and dielectric properties, ensuring circuit stability without interference.Moderate viscosity: Avoid excessive fluidity caused by low viscosity, which is difficult to control and increases the difficulty of sealing operations.Thermal conductivity ≥ 0.5W/m · K: possessing certain thermal conductivity, which helps with device heat dissipation.After curing, there are no bubbles in the appearance: ensuring sealing and electrical safety, and improving the consistency of product appearance.Good adhesion to the shell: improves overall mechanical strength and enhances environmental adaptability.Recommended product: PUR 1680 polyurethane sealantFor the above technical requirements, we recommend using PUR 1680 polyurethane sealant. This product is a single component moisture cured polyurethane material with the following significant advantages:

More

Case Study of Elaplus | Solution for High Temperature Oil Environment potting of Automotive Oil Pressure Sensor

2025-05-22

In modern automotive electronics, the working environment of sensors is becoming increasingly demanding. Especially in high temperature, high pressure, and high oil immersion application scenarios such as engine compartments and transmission systems, unprecedented challenges have been posed to the reliability of sealing materials. In this case study, we focus on how to use high-performance epoxy sealant to achieve long-term stable sealing protection and electrical insulation for automotive oil pressure sensors when facing various highly corrosive liquid immersion and extreme temperature difference conditions. 1、 Application Background: Challenging “Oil Sea” EnvironmentOil pressure sensors are widely deployed in engine lubrication systems to monitor oil pressure in real-time and ensure safe engine operation. The sensor body needs to be immersed in the following media for a long time:🔧 Long term soaking of engine oil🛑 Brake oil DOT3/DOT4 erosion⚙️ Transmission fluid (such as Castrol BOT790/Shell SL2100)❄️ Volatile erosion of refrigerant mediumMore importantly, the environment in which the sensor is located also faces severe temperature fluctuations, with a temperature range covering all operating conditions from -40 ℃ to 140 ℃, and even requiring the material to withstand long-term thermal aging environments of 150-180 ℃.If the adhesive performance does not meet the standard, it is highly likely to cause the sealing layer and substrate to peel off, crack, and even lead to internal short circuit failure of the sensor, thereby triggering a vehicle warning or malfunction. 2、 Recommended solution: EP 1710A/B high temperature resistant epoxy sealantFor the above extreme application environments, we recommend using EP 1710 A/B two-component epoxy sealant. Its formula is designed specifically for environments with high temperature resistance, oil resistance, and resistance to refrigerant corrosion, and has the following outstanding properties:✅ 1. Long term high temperature and thermal shock resistanceCan work at a temperature of 150-180 ℃ for a long time, with stable thermal…

More

Tire pressure sensor adhesive solution: PUR 1680, firmly bonded!

2025-05-22

1、 What is a tire pressure sensor? What are the key requirements for adhesives?Tire pressure sensor (TPMS) is an indispensable safety component in modern automobiles, mainly installed at the wheels or valves, used to monitor the internal pressure and temperature of the tires in real time, and transmit data to the vehicle control system to prevent tire blowouts or abnormal air pressure. PUR 1680 tire pressure sensor encapsulationDue to its extremely harsh working environment (such as high-frequency vibration, high and low temperature cycles, humidity and heat, oil stains, and long-term use), strict requirements have been put forward for the selection of internal and external adhesives:Adhesives need to have the following key properties:✅ Strong adhesive force: can firmly bond different substrates such as metal, ceramic, plastic, etc✅ High and low temperature resistance: Long term stability from -40 ℃ to 125 ℃, with some applications requiring up to 150 ℃✅ Salt spray and humid heat resistance: does not fail or corrode sensor materials in outdoor environments✅ Flexible cushioning: resist stress changes caused by tire vibration and thermal shock✅ Excellent oil resistance: resistant to oil, water, or hydrocarbons that may come into contact with the interior of the tire2、 Recommended solution: Hot melt reactive polyurethane adhesive (PUR 1680)🔹 Product Name: PUR 1680PUR 1680 A/B two-component polyurethane sealant, used for two-component sealing and filling. The raw materials are free of heavy metals, environmentally friendly, and have a wide range of process operability. The finished product has high physical properties and good adhesion to the substrate. It can be cured at room temperature or by heating, and can be deeply cured. The two-component mixture has good fluidity and excellent flexibility after curing. It is used for casting and sealing of communication equipment, transformers, control power supplies, ignition controllers, electronic sensors, etc.Low viscosity, strong operabilityExcellent low-temperature…

More

High performance liquid thermal conductive gel gasket TCMP 1935– a new generation solution for automotive ECU thermal management

2025-05-15

Industry Challenge: Thermal Management, Hidden Killer of Automotive ElectronicsWith the continuous evolution of new energy vehicles, autonomous driving, and intelligent cockpit technologies, automotive electronic systems are highly integrated, ECU、IGBT、MCU、 The continuous improvement of power density of core components such as motor controllers has put forward more stringent requirements for the performance of thermal management materials: ❌ Traditional thermal pads have a large thickness and high compressive stress, which can easily lead to fatigue failure of solder joints❌ Thermal paste is prone to long-term drying, cracking, and loss, with poor reliability and difficulty in repair❌ The application of thermal conductive gel is complex, and it is difficult to give consideration to both fluidity and positioning accuracy❌ In high-end manufacturing, manual patching and dispensing have low efficiency and do not meet automation requirements[Solution: TCMP 1935 Liquid Thermal Conductive gel]In response to the pain points of industrial thermal management, we launched a new product: TCMP 1935 Liquid Thermal Conductive gel. This is a two-component, low modulus, automatic adhesive thermal interface filling material (TIM) with a thermal conductivity coefficient of up to 3.5 W/m · K. It is widely used in fields such as automotive electronics, communication equipment, and high-performance computing platforms. [Product Features] Performance indicators TCMP 1935Thermal conductivity 3.5 W/m · KModerate viscosity (after mixing), suitable for automatic dispensing and scrapingModulus (after curing) low stress, flexible contact solder joint protectionthermal conductivity efficiency Extremely low thermal resistance, far superior to ordinary silicone grease or thermal pads in terms of Curing method Available at room temperature or heating, supporting flexible manufacturing processesPackaging form: two-component A/B adhesive, suitable for static/dynamic mixed feeding systemsRemovable for rework, does not contaminate the substrate, supports repeated maintenanceApplication advantages and customer value

More

CIPG sealing is no longer a compromise! ELAPLUS SIPC 2115: It has all the elasticity, viscosity, and durability you need!

2025-05-15

In the field of high-performance sealing and bonding, material selection is never “roughly the same”. Especially with the continuous development of new energy, intelligent manufacturing, and precision electronics today, CIPG (molded gasket) technology is rapidly replacing traditional gaskets, and high-performance sealing materials are a key link in improving product quality. CIPG Sealing Today, we bring you a star product “Born for CIPG”: 🎯 ELAPLUS SIPC 2115 single component pasty silicone gel 💡 Why choose SIPC 2115? This material is designed specifically for complex structural components and precision electronic sealing and bonding. It not only solves the problems of aging and poor adhesion of traditional sealing gaskets, but also considers automatic dispensing, environmental standards, and multi material adaptability. CIPG seal ✅ 1. CIPG/FIPG adhesive is ready. Whether it is CIPG dry molding or FIPG wet sealing, SIPC 2115 can respond flexibly, achieving efficient production and saving space and time costs. ✅ 2. That’s right, no primer is needed! Wide material adaptability can be directly bonded: 🔸 Metal (stainless steel, aluminum plate) 🔸 Glass and Ceramics 🔸 Engineering plastics such as PC and ABS 🔸 Silicone rubber sheets, mica, and composite materials do not require primer, are sturdy and reliable, greatly improving process yield. ✅ 3. Soft and resilient, with long-lasting sealing ✔️ After solidification, it is in a low hardness and high elasticity state ✔️ Excellent tear resistance and ability to absorb structural stress ✔️ Excellent resistance to thermal expansion and contraction, long-term stability, no looseness or cracking ✅ 4. Stable even in extreme environments. It has elastic resistance, long-term weather resistance, moisture resistance, and heat resistance in the temperature range of 60 ℃ to+200 ℃, and is suitable for complex use environments such as new energy vehicles and electronic control systems ✅ 5. Electrical performance is safe and reliable 🛡️…

More

By using the right potting material for power supply, it will be stable and long-lasting

2025-05-08

The power module is exposed to harsh environments such as high temperature, humidity, and vibration for a long time. Choosing a suitable power sealing adhesive is the key to ensuring the stable operation of the product! ✅ Why do we need to perform potting to power supply?✔ Improve electrical insulation performance to prevent breakdown and short circuit✔ Moisture resistant and waterproof, extending the service life of the power supply✔ Anti vibration, high temperature resistance, suitable for complex working environments✔ Improve the mechanical strength of the module and prevent component loosening🔧 Recommended Common potting material:Epoxy sealant: high hardness, high insulation, suitable for adapters and power driversOrganic silicone sealant: good flexibility, high and low temperature resistance, suitable for outdoor power equipmentPolyurethane sealant: soft and impact resistant, suitable for high humidity and high salt spray environments【 Recommended Product 】 EP 1712 Epoxy Power supply potting materialEP 1712A/B is a two-component solvent-free ambient temperature curing epoxy potting material. After mixing, it has moderate flowability, certain leak proof characteristics, and a wide range of adhesiveness. The cured product meets UL 94V-0 flame retardancy.Good toughness and high hardnessExcellent adhesion and cracking resistanceExcellent electrical insulation and stability stabilityGood waterproof and moisture-proof properties, with extremely low water absorption rateGood temperature resistance, able to withstand temperatures up to 150 degrees Celsius in a short period of timeApplication areaSuitable for packaging protection of automotive electronics, sensors, optoelectronic LEDs, and lighting productsTags: Silicon potting compound, Epoxy potting compound, Electronic potting compound, Power potting compound

More

LED thermal management | gap filling between aluminum substrate and heat sink

2025-05-08

Thermal management is crucial in high-power LED lighting equipment. Aluminum substrates are commonly used as thermal conductive substrates to transfer the heat generated by LED chips to the heat sink. However, due to the small gap between the aluminum substrate and the heat sink, the air thermal resistance is high. If not properly filled, it will seriously affect the heat dissipation efficiency and shorten the life of the LED. Challenges and NeedsCustomers face the following challenges when using traditional thermal conductive materials:The material is prone to drying and cracking or oil separation at high temperatures, and has poor long-term stabilityInsufficient thermal conductivity, high thermal resistance, LED is prone to overheatingPoor adhesion performance, unable to stably adhere to metal surfacesThe usage environment is complex and requires high and low temperature resistance, oxidation resistance, and moisture resistanceSolutionWe recommend using SIGR 2225 thermal conductive silicone grease, specifically designed for high-performance electronic heat dissipation: 💡 Thermal conductivity up to 2.5W/m · K, significantly reducing thermal resistance🔥 High temperature does not dry and oil does not separate, ensuring long-term stable operation💧 Excellent water resistance and oxidation resistance, suitable for complex environments📐 Low volatility and low oil separation, eliminating pollution and performance degradation🔌 Excellent dielectric and anti corona performance to ensure electrical safety⚙️ Good adhesion, suitable for various materials such as metal, ceramic, rubber, etcAfter the customer adopted SIGR 2225, the total thermal resistance of the system decreased by more than 30%, the operating temperature of the LED significantly decreased, and the stability and lifespan were greatly improved, achieving a win-win situation of efficient thermal conductivity and long-term reliability!Tags: LED thermal management · LED thermal management | Gap filling between aluminum substrate and heat sink · SIGR 2225 · Thermal conductive silicone grease

More

Common fault phenomena and solutions of electric vehicle battery current sensors

2025-04-30

Imagine: at a critical moment, your electric vehicle battery management system (BMS) suddenly issues an “abnormal current” alarm, while you lose power without warning. The battery current sensor is like the “current eye” of a car. Once there is a problem, it not only affects the range but may also pose safety hazards. Only by understanding its “temperament” and “deviation” can we extinguish the fire of malfunction in the first time and ensure worry free driving. 1、 Introduction to Electric Vehicle Battery Current SensorThe current sensor is responsible for real-time monitoring of the charging and discharging current of the battery pack, and is the core component of BMS for accurately estimating the remaining charge (SOC) and state of health (SOH). Common types include Hall sensors and shunt sensors, each with its own advantages and disadvantages – Hall sensors have strong anti-interference ability but slightly lower accuracy, while shunt sensors have high accuracy but require good heat dissipation.2、 Common fault problems and solutionsCorresponding measures for fault phenomenaSignal drift, jitter • Check and stabilize power supply and grounding

More

Adhesive for weighing sensors

2025-04-27

1、 The concept and working principle of weighing sensorsWhat is a weighing sensor:A weighing sensor is actually a device that converts a mass signal into a measurable electrical signal output working principle:In principle, a weighing sensor is a pressure sensor, which is encapsulated in metal. It has an eddy current triggering winding and a sensor that senses the intensity of the eddy current. The eddy current is inside it, and when the metal is compressed, it deforms, causing the eddy current to change. After amplification, the data can be read.3 common weighing sensors:Weighing sensors can be divided into 8 categories according to conversion methods, including photoelectric, hydraulic, electromagnetic, capacitive, magnetic pole transformation, vibration, gyroscope ritual, and resistance strain, with resistance strain being the most widely used. Taking the resistance strain type weighing sensor as an example, we will share with you the working principle and adhesive points of the weighing sensor. Working principle diagram of resistance strain type weighing sensorA resistance strain sensor is a measuring device that uses a metal elastic body as the elastic element and a resistance strain gauge attached to the sensitive part of the elastic body to form a Wheatstone bridge. Under the excitation of an external power source, the force can be converted into an electrical signal. Usually, elastomers and strain gauges are combined in various ways, such as shells, sealing components, etc., to protect the strain gauges.The resistance strain sensor is mainly composed of elastic body, strain gauge, Wheatstone circuit, compensation circuit, cable, adhesive, and sealing material.2、 Common materials for weighing sensorsThe performance of a weighing sensor largely depends on the choice of manufacturing materials. The weighing sensor material includes the following parts: strain gauge material, elastomer material, patch adhesive material, sealant material, lead sealing material, and lead material.

More

COPYRIGHT ◎ 2023 Elaplus Functional Materials Co. LTD

Mail Mail
angela.he@elaplus.cc
 Wechat/WhatsApp Wechat/WhatsApp
+86 13291521819

sample request

We will reply within 24 working hours. If urgent, please help us to contact through email： angela.he@elaplus.cc