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Industry Application

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Consumer Electronics Charger Heat Conduction Case Sharing | TCMP 1920 Liquid Heat Conduction gel Gasket

2025-08-20

With the rapid development of consumer electronics, the size of chargers is becoming smaller and the power is increasing. From 18W to 65W, and now to the common 100W or even 240W PD fast charging, while chargers continue to break through their limits, they also bring a serious challenge – heat dissipation. If the heat cannot be exported in a timely manner, key components such as MOS tubes, transformers, inductors, capacitors, etc. inside the charger will face high temperature pressure, resulting in:life shorteningReduced efficiencyIncreased safety hazardsTherefore, the selection of thermal management materials has become a key factor in the reliability of consumer electronic chargers.Customer pain points and challengesCustomer requirements:High heat generation under high power densityThe charger is compact in size and tightly stacked internally, making it difficult to quickly dissipate heat.Materials that balance thermal conductivity and flame retardancyRequire UL94 V-0 flame retardant and 2.0 W/mK thermal conductivity.Complex assembly processTraditional thermal conductive silicone grease is prone to splashing, and thermal conductive sheets have problems such as poor adhesion and excessive stress, which affect production efficiency and product consistency.Cost sensitiveThe consumer electronics industry is fiercely competitive, and customers need to balance performance and cost to avoid excessive increase in BOM costs.Solution: TCMP 1920 liquid thermal conductive gel gasketWe recommend TCMP 1920 two-component liquid thermal conductive gel gasket to customers. With its advantages of high thermal conductivity, low stress and automation, it has successfully solved customers’ pain points:High thermal conductivity: thermal conductivity of 2.0 W/mK, efficient conduction of device heat.Flame retardant grade V-0: meets the requirements of consumer electronics safety regulations.Low stress protection: made of thixotropic material with low compression force, it will not damage precision solder joints and components.Highly automated adaptation: The dispensing equipment can provide fully automatic feeding, precise control of dosage, and significantly reduce material waste.Strong rework capability: Materials can…

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What is a PD charger? Why do we have to do sealing?

2025-08-19

With the continuous increase in power consumption of electronic devices, “fast charging” has become a standard configuration for mobile phones, tablets, and laptops. One of the core technologies supporting fast charging is the PD charger (Power Delivery Charger).What is a PD charger? Firstly, let’s understand what PD on the charger means. PD stands for Power Delivery. PD charger (Power Delivery charger) is a fast charging solution that uses USB technology to provide higher power, thereby providing faster and safer charging for various devices including smartphones, tablets, and laptops. It allows devices to communicate with chargers to ensure optimal power transmission and adjust according to the needs of each device, thereby achieving more efficient charging.Compared to traditional chargers, PD chargers have:Higher power: Supports up to 240W, suitable for simultaneous charging of laptops and mobile phones;Intelligent regulation: can automatically match voltage and current according to device requirements;Strong universality: Type-C interface is universal on the front line.However, high power means higher heat generation, component density, and safety requirements, which naturally increases the difficulty of manufacturing.Why do PD chargers need to be sealed?Sealing is a crucial step in the production process of PD chargers. The so-called encapsulation refers to pouring specialized adhesive into the charger to provide comprehensive protection for electronic components.The functions of sealing include:Insulation protection: prevent ignition and short circuit between high-voltage components;Thermal conduction and heat dissipation: quickly conduct heat, extend lifespan;Moisture proof and waterproof: prevent moisture and dust from causing failure;Mechanical protection: anti vibration, anti loosening, and improves overall reliability.For PD fast charging products that pursue high safety and long lifespan, encapsulation is almost standard.Recommended solution: SIPA 8250-15For the sealing requirements of PD chargers, we recommend using SIPA 8250-15 two-component epoxy sealing material:High hardness: After curing, a strong protective layer is formed, which is wear-resistant and compressive;Excellent liquidity: capable of penetrating…

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SIPC 1832 Application Case | Efficient Solution for Metal Shell Adhesive Sealing

2025-08-19

In the manufacturing industry, the bonding and sealing of metal shells are important aspects of product protection. Whether it is household appliances, automotive components, or photovoltaic modules, the casing must not only withstand harsh environments such as high temperature, humidity, and vibration, but also maintain good air tightness and electrical insulation performance.Traditional welding and screw fastening methods are gradually showing shortcomings in efficiency and reliability:❌ Complex process and low assembly efficiency❌ Easy to crack or fail under high temperature/alternating cold and hot conditions❌ Difficult to achieve comprehensive sealing, limited waterproof and moisture-proof effectIn this context, RTV SIPC 1832 condensation type adhesive sealing silicone rubber emerged. Product Overview SIPC 1832 is a two-component condensed room temperature vulcanized silicone rubber:It can be quickly cured at room temperature, and the released ethanol small molecules are non corrosive to the material;After curing, it forms a soft elastic body with excellent properties such as resistance to cold and hot alternation, aging resistance, electrical insulation, moisture resistance, and earthquake resistance;Good adhesion to substrates such as metal, plastic, ceramics, and glass. Special materials (PP/PE) can be combined with primer or surface treatment to enhance the effect;Fast and stable assembly process can be achieved without the need for additional primer.Product FeaturesDehydration type room temperature rapid curing – suitable for efficient production on assembly linesMicrofluidic paste, easy to glue and form – suitable for complex structures and deep bondingDual component 1:1 volume ratio – simple mixing process with large allowable errorGood resistance to cold and heat exchange – adaptable to harsh environmentsExcellent electrical insulation – ensuring long-term safe operationFood grade FDA, ROHS, REACH certification – meets environmental and safety requirementsApplication CasesA certain home appliance manufacturing factory is facing the following difficulties in the assembly of metal shells for induction cookers: The shell needs to withstand high temperature and humid…

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Case Study of Home Appliance Power Potting | A Reliable Choice for High Hardness and Flame Retardant Protection

2025-08-19

In modern home appliances, the power module is one of the core components, which directly affects the safety and stability of home appliance operation. Whether it is a refrigerator, washing machine, water heater, or small smart home device, the power module works in a high-temperature, high-pressure, humid, and even dusty environment for a long time. Without effective protective measures, it is prone to problems such as short circuit, breakdown, cracking, and water ingress failure, which can affect the overall lifespan and user experience of the device.Background and Challenges Traditional power protection methods often rely on simple shell isolation or local adhesive sealing, but there are still the following challenges:❌ Insufficient mechanical strength: High frequency switches and long-term thermal cycling can easily cause the gel to crack and lose its protective effect.❌ Poor flame retardancy: Once the power supply overheats or breaks down, ordinary colloids are difficult to meet safety standards.❌ Insufficient moisture resistance: In humid environments, water vapor infiltration can cause corrosion of metal components and reduce insulation performance.❌ Limited temperature resistance: Under long-term operation, the instantaneous temperature of household appliance power supplies may shock up to 150 ℃, posing a severe test on the stability of colloids.This poses higher requirements for power supply sealing materials: they must have high hardness, good adhesive strength, and be able to firmly fix components, while also being flame retardant, moisture-proof, and heat-resistant to ensure long-term stable operation.Solution: EP 1712 high hardness epoxy sealantFor the challenge of home appliance power modules, it is recommended to use EP 1712A/B two-component epoxy potting material. This material is a solvent-free room temperature curing system with moderate fluidity and friendly operation process. After curing, it forms a dense protective layer with high hardness and toughness.Product advantages✔ High hardness and toughness: It combines rigidity and impact resistance, avoiding cracking…

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Recommended sealant for energy storage PCBA dam – SIPC 9200 and SIPC 9400, meet multiple needs and protect your electronic devices

2025-08-18

With the continuous development and application of energy storage technology, the reliability of electronic products, especially battery management systems (BMS) and energy storage modules, has become a key concern in the industry. In the production process of these devices, the packaging and sealing of PCBA (printed circuit board components) are particularly important. In order to cope with various challenges in different work environments, choosing the appropriate sealant has become particularly crucial. This article will focus on introducing two high-performance sealants: SIPC 9200 dam sealant and SIPC 9400 potting sealant, and how they meet the special needs of the energy storage PCBA field. Special requirements for sealing of energy storage PCBA damThe PCBA of energy storage devices often faces multiple external pressures such as high temperature, moisture, chemicals, and vibration during use. Therefore, dam sealant should not only have excellent adhesion and sealing performance, but also be able to withstand long-term environmental pressure to ensure the stability and long-term durability of electronic components.Customer requirement: The energy storage PCBA dam sealant needs to meet the following requirements:Flame retardancy: Energy storage equipment may generate heat and even pose a risk of short circuit during operation, so the sealant must have a certain degree of flame retardancy to ensure the safety of the equipment.Rapid initial setting: In the production process, the initial setting speed of sealant is very important. In order to improve production efficiency, the sealant should be able to reach the initial solidification state within 20 minutes.Not poisoned by acrylic three proof paint: Acrylic three proof paint is commonly used as a protective coating for electronic components. If the sealant reacts chemically with the three proof paint, it may affect the quality of the paint film. Therefore, it is required that the sealant be compatible with acrylic three proof paint.Compatibility of subsequent…

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IGBT heat dissipation upgrade: the perfect combination of SIGR 2235 thermal grease and screen printing technology

2025-08-15

In the fields of new energy vehicles, rail transit, industrial control, etc., IGBT is the “big heart” of power control, but it is also a “big fan” of heat generation. High temperatures not only shorten lifespan, but may also lead to malfunctions or even shutdowns. So, how to make IGBT work calmly?The answer is: high-performance thermal conductive material+precise coating processPain points in thermal management – three major challenges in IGBT module heat dissipationHigh power density → instantaneous high heat generationPoor working environment → -40 ℃~150 ℃ long-term fluctuationHigh interface thermal resistance → Small air gaps hinder heat conductionApplication of screen printing thermal conductive silicone grease process in IGBT Thermal conductive materials play a crucial role in the heat flow path, effectively controlling the temperature inside the module by conducting the heat from active devices to the external environment. The heat flow within the module depends on the layers in contact along the path.Technological breakthrough – screen printingUnlike traditional slurry coating methods, screen printing technology only applies thermal conductive compounds to the required areas. During this process, the required amount of thermal conductive compound is determined by scanning the substrate surface.Application of screen printing thermal conductive silicone grease process in IGBTThe blue or purple line represents the metal contact area with the heat sink, while the red line indicates the area that has not formed thermal contact with the heat sink. The cavities on the substrate need to be filled with thermal conductive compounds. To determine the required amount of thermal paste, the surface scanning area needs to be divided into a grid like distribution. For each grid point, it is necessary to accurately calculate the sufficient amount of thermal paste to be added. Comparison between using screen printing and not using screen printing technologyUniform and controllable coating thicknessSuitable for large-scale…

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Automotive sensor encapsulation solution | PUR 1680 provides strong sealing and safety protection

2025-08-15

Driven by the wave of intelligence and electrification, automotive sensors have become one of the core components for vehicles to perceive the world. Whether it is millimeter wave radar sensors used in ADAS systems or various sensors that monitor temperature, pressure, and position, stable and reliable operation is directly related to the safety performance of the entire vehicle.However, sensors face multiple challenges during long-term service, such as extreme temperature differences, humid and hot environments, chemical corrosion, and mechanical vibration.BackgroundModern cars are often equipped with dozens of sensors, which are installed in the engine compartment, chassis, inside the headlights, and exposed areas outside the car. These locations not only have harsh environments, but are also difficult to maintain. Once the sensors fail, it may lead to the paralysis of vehicle safety functions.In order to ensure long-term stable operation, encapsulation technology has become an important means of sensor protection – it completely isolates internal precision components from the outside world by injecting specific adhesive materials, making them waterproof, dustproof, vibration proof, and corrosion-resistant. Proximity sensorApplication ChallengeCommon pain points in automotive sensor encapsulation include:Insufficient sealingOrdinary adhesive materials are prone to producing tiny pores during the curing process, making it difficult to achieve a waterproof rating of IP67/IP68.cure shrinkage High shrinkage rate can generate stress after curing, which may damage sensitive chips or solder joints.Flame retardant requirementsAutomotive grade electronic components need to meet UL 94 V-0 flame retardant standards, and ordinary potting adhesives are difficult to balance flame retardancy and mechanical properties.Balance between thermal conductivity and insulationSensor components generate heat during operation, and a low thermal conductivity can lead to poor heat dissipation, while a high thermal conductivity may affect insulation performance. Solution: PUR 1680 polyurethane sealantIn response to the above challenges, we recommend PUR 1680- a flame-retardant polyurethane sealant designed specifically for automotive…

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Connector potting adhesive | EP 1798 epoxy potting material | Flame retardant and waterproof IP68 | High and low temperature resistance

2025-08-12

In the fields of industrial equipment, rail transit, communication base stations, marine equipment, etc., connectors undertake the key tasks of signal and power transmission.However, these connectors often face harsh environments such as high and low temperature cycling, moisture immersion, vibration impact, and dust intrusion. Once the sealing and insulation performance fails, it may lead to equipment communication interruption or control failure. Connector sealingEspecially under the requirement of IP68 protection level, connectors must still work stably in long-term water immersion and high humidity environments, which poses higher challenges for encapsulation materials:Low viscosity: Ensure that the sealing material can fully penetrate the fine gaps inside the connector, avoiding bubbles and voids.Resistant to high and low temperature impacts: -40 ℃ cold to 150 ℃ high temperature alternating cycle without damage.Flame retardant safety: meets V-0 flame retardant rating to prevent electrical fire hazards.Long term water-resistant soaking: Ensure stable sealing performance without deterioration.Recommended solution: EP 1798 two-component epoxy potting materialEP 1798A/B is a two-component solvent-free heat cured epoxy potting material designed specifically for connector protection in harsh environments, with excellent comprehensive performance: Connector sealing Core advantages✅ Low linear expansion coefficient: thermal expansion and cold contraction to avoid stress cracking✅ Small solidification shrinkage: ensuring the compactness of the encapsulation✅ High hardness+good toughness: resistant to impact and deformation✅ Excellent electrical insulation and thermal stability: protecting internal components from external interference✅ Low viscosity, good fluidity: no dead corners in sealing✅ Temperature resistance level H (-50 ℃~200 ℃)✅ Good high and low temperature impact performance: no performance degradation after 96 hours of alternating cold and hot temperatures✅ Waterproof performance meets IP68 standardsView product detailsApplicable application scenariosMarine engineering connectors: resistant to salt spray corrosion and seawater immersionRail transit signal connector: alternating high and low temperature+vibration impactIndustrial automation interface: stable operation in dust and oil pollution environmentsCommunication base station connector: cope…

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Power bank potting solution | Efficient thermal conductivity, safe flame retardancy, and reliable protection

2025-08-12

In today’s rapidly developing mobile electronic devices, power banks have become an essential “endurance tool” for people. However, with the continuous increase in capacity and power, internal heating, weather resistance, and safety issues have also become prominent. How to provide reliable protection for internal core components while ensuring energy density? Sealing glue becomes a crucial step. Why do power banks need to be sealed?The internal structure of a power bank is compact, usually including core components such as battery cells, circuit boards, protective chips, and heat sinks. When outputting high power for a long time, the PCB and power devices will continue to heat up. If the heat dissipation is poor, it not only affects performance but may also pose safety risks.The sealing adhesive mainly plays the following roles:Thermal conduction and heat dissipation: Quickly transfer heat to the shell, reducing the core temperatureInsulation protection: isolate moisture and dust to avoid short circuitsStructural reinforcement: earthquake and drop resistance, enhancing durabilityFlame retardant safety: prevent accidental overheating and combustionGlue requirementsFor the special structure and usage environment of power banks, the sealing adhesive must meet the following conditions:Natural curing: No heating required, suitable for mass production and assemblyThermal conductivity ≥ 2.0 W/m · K: ensures rapid heat dissipationSemi flowing state: It can fill gaps and is not easy to flow to places where it should not flowFlame retardant grade V-0: ensures safe use and meets the fire prevention standards for electronic products Recommended product: SIPA 8250-20 In response to the above requirements, we recommend SIPA 8250-20 thermal conductive flame-retardant sealant – a silicone material designed specifically for portable energy storage devices.core performanceHigh thermal conductivity: thermal conductivity of 2.0 W/m · K, effectively reducing temperature rise of power devicesFlame retardant V-0: Compliant with UL 94 V-0 standard, excellent flame retardant performanceAdjustable viscosity: Semi flowing design…

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