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Industry Application

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Smart Watch Thermal Management Solution

2025-03-13

Wearable devices such as smartwatches will constantly come into contact with human skin. Therefore, this brings unique thermal management challenges: balancing comfort, safety, and effective heat dissipation. Traditional rigid materials used for thermal conductivity often fail in this situation because they are not suitable for flexible and stretchable wearable devices. Therefore, effective heat management in smartwatches is crucial for preventing overheating, ensuring user comfort, and maintaining device lifespanWhy is thermal management crucial for smartwatches?Thermal management is particularly important for smartwatches designed specifically for children, as safety, comfort, and long-term use are crucial. In addition, Elaplus understands the challenges faced by manufacturers in this field and provides professional solutions for efficient thermal control. We focus on this field and provide advanced solutions for smartwatch manufacturing to meet your thermal management needs. Contact us immediately for expert advice and support.Thermal Management Solution for Smart WatchesActive thermal managementThis involves the use of cooling systems powered by external sources, such as fans, heat pipes, and thermoelectric coolers. Although active cooling is more common in large devices, it can be applied in some smartwatch designs to more effectively manage heat.Passive thermal managementPassive thermal management focuses on dissipating heat through materials and design elements, without the need for an external power source. Common methods include:Thermal conductive gel: a material that binds components and helps heat transfer.Thermal conductive silicone grease: a material applied between surfaces to improve heat transfer and prevent overheating.Thermal pad: a soft material used to improve thermal conductivity and heat dissipation between components.

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Elaplus case sharing and product recommendation of sealing reinforcement for the tail wire harness of lamp head

2025-03-13

In the modern automotive manufacturing and LED lighting industries, the sealing and reinforcement of the wiring harness at the rear of the lamp head has always been a key concern for technicians. High quality adhesive sealing materials not only determine the appearance and aesthetics of lamp head products, but also directly affect the long-term stability and safety of the products. This article will start from practical cases and analyze in detail the technical requirements, application process, testing standards, and our recommended high-performance sealant – Elaplus SIPC 2150 white sealant – for sealing and reinforcing the wire harness at the tail of the lamp head. It will help engineers and technicians better grasp the key points of construction and achieve high-quality sealing and reinforcement effects. 1、 Project background and sealing requirementsIn the tail area of the lamp head, due to the dense arrangement of electrical wiring harnesses and long-term exposure to complex environments such as temperature, humidity, and oil pollution, sealing and reinforcement work is particularly critical. In traditional craftsmanship, improper sealing often leads to the intrusion of water vapor and dust, and even causes problems such as circuit short circuits, accelerated aging, and decreased performance of lighting fixtures. Therefore, the sealant selected for this case must meet the following strict requirements:Adhesive force requirement: The final test tensile force must be greater than 30N to ensure that the sealing layer will not peel off due to external forces during actual use.Aging resistance test: After passing the double 85 test for 5000H, the product ensures long-term stable operation in high temperature environments.Color requirement: The product should appear transparent or white to meet the appearance requirements and coordinate with the car lights and interior style.These technical requirements ensure the excellent performance of the sealant in various extreme environments, thereby effectively improving the durability…

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Organic silicone transparent potting adhesive | PCB switch leak sealing

2025-03-11

In the electronic manufacturing industry, the issue of switch leakage on PCB (printed circuit board) has always been a focus of attention for technicians. With the development of electronic products towards high density, miniaturization, and lightweight, higher requirements have been put forward for sealing materials: colloids are required to have characteristics such as “detachable”, “fast curing”, and “slight fluidity”. This article will share a real case to introduce how to use SIPC 1826 transparent silicone adhesive sealant (RTV 1826 alcohol free silicone adhesive sealant) to solve the problem of PCB switch leakage and achieve the best balance of electronic product protection. Background and ChallengesOn the production line, there is a slight leakage problem in the PCB switch area, which not only affects the appearance of the product, but also poses a hidden danger to the stability of subsequent use. Traditional sealants often have defects such as long curing time, insufficient adhesion strength, or difficulty in disassembly, which cannot meet the high-precision and high-efficiency electronic product manufacturing needs. Therefore, the manufacturer urgently needs a new type of silicone sealant that can cure quickly, be detachable, and have slight fluidity.Recommended productsSIPC 1826 transparent silicone adhesive sealant (RTV 1826 dealcoholized silicone adhesive sealant) is a neutral curing silicone sealing material that can absorb moisture from the air at room temperature to complete curing. This product has the following major features:Fast curing: The product has a fast drying speed and can form a protective film in a short period of time, significantly improving production efficiency.Detachability: Due to the use of a small amount of adhesive application, it can be disassembled even after sealing, making it easy for later maintenance and repair work.Slight fluidity: ensuring self adjustment after dispensing, filling small gaps without loss or diffusion, ensuring sealing effect while reducingIn summary, SIPC 1826 transparent…

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EP2025 A/B fast curing epoxy adhesive – an ideal choice for plugging leaks in lamp wiring harnesses

2025-03-11

With the booming development of the smart home and high-end lighting markets, lighting products are showing increasingly diverse characteristics in both exterior design and internal structure. Many modern lighting fixtures not only use PC (polycarbonate) as the shell material, but also complement it with stainless steel and other metal materials to form the frame structure, thus achieving the design requirements of high strength and impact resistance. In this context, the encapsulation and sealing of wire harnesses inside the lighting fixtures are particularly critical. If the adhesion is not firm, it may cause leakage, short circuit, or material aging due to temperature fluctuations, and in severe cases, it may even endanger the safety of use.During the production process of the new generation of LED lighting fixtures, customers face the following major challenges:Rapid curing requirement: The production line requires a shortened assembly cycle, and traditional adhesives that cure for a long time cannot meet the compact production plan.Heterogeneous material bonding: The bonding between PC plastic and stainless steel metal is difficult, and traditional adhesives often have insufficient bonding force or uneven curing between different materials.Temperature resistance requirements: The working environment temperature range of the lamp is wide, with drastic changes from extremely low to high temperatures, which puts higher demands on the weather resistance and chemical stability of the adhesive. Recommended adhesive: EP 2025 fast curing epoxy adhesiveIn response to the above challenges, the company selected EP2025A/B fast curing epoxy adhesive and verified its excellent performance in multiple experimental stages. EP2025A/B is a two-component epoxy adhesive that can be quickly cured at room temperature without heating by mixing components A and B in a 1:1 weight or volume ratio. The specific technical advantages are as follows:Leakage prevention of lighting harness. Rapid curing at room temperatureIt only takes about 10 minutes to form…

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What is the difference between thermal grease and thermal silicone?

2025-03-07

Although thermal conductive silicone grease and thermal conductive silicone gel have only one word difference, their functional characteristics are vastly different. Thermal conductive silicone grease is a grease like substance that lacks adhesion and cannot dry and solidify. It has good thermal conductivity and insulation properties. Thermal conductive silicone gel is a single component dealcoholized room temperature cured silicone rubber that has cooling and bonding effects on electronic devices. Let’s take a closer look at the difference between thermal conductive silicone grease and thermal conductive silicone gel with ELAPLUS! Thermal conductive silicone grease and thermal conductive silicone gelThe difference between thermal conductive silicone grease and thermal conductive silicone gel: Different characteristics

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Silicone gel for cable joint gel filling case

2025-03-07

A large number of connecting lines are required in the power supply system, and of course, there are also many connectors. In order to adapt to the underground environment, water seepage often occurs on rainy days, especially during floods, where the entire buried cable area is submerged. If the sealing effect is not good, it is easy to cause electric leakage, which has a significant impact on public safety. Therefore, it is of great significance to carry out waterproofing work at cable joints. A junction box is one of the electrical accessories, and the joint of wires is made of a junction box as a transition. The wire conduit is connected to the junction box, and the wires inside the conduit are connected in the junction box to protect and connect the wires. However, gluing cable junction boxes can achieve waterproof, sealing, corrosion resistance, high temperature resistance, anti-aging, high compressive strength, insulation and other effects.Cable joint protection box waterproof gel, SIGEL 3078 silicone gel is easy to make into various colors and shapes, also known as “shape memory waterproof gel”.SIGEL 3078 organic silicon gel is a transparent two-component self-healing organic silicon gel, which forms a special soft material with buffer and automatic recovery after curing. Used to isolate moisture and other harmful pollutants from contacting circuit boards, and provide insulation for high voltage. Another use is to provide stress relief to protect circuits and interconnects from high temperatures and mechanical stresses. Product Features:◇ High elongation rate; Excellent flexibility, eliminating mechanical stress◇ Extremely low oil leakage after curing, excellent resistance to poisoningExcellent high-temperature electrical insulation, providing protection for high voltageExcellent aging resistance and weather resistanceExcellent waterproof, anti-corrosion, moisture-proof, and chemical resistant properties◇ Can be used for semiconductor modules, connectors, sensors, etcLabel: junction box gel potting · junction box potting glue ·…

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Elaplus Wireless Earphones Integrated Adhesive Application Solution

2025-03-06

Wireless headphones have become an indispensable part of our daily lives, providing seamless connectivity and high-quality sound. However, in addition to stylish design and advanced audio technology, robust and reliable bonding solutions play a crucial role in ensuring durability, performance, and longevity.Adhesives are widely used to bond wireless earphones and charging cases, and to bond various components to withstand daily wear and tear.Below, we will provide a detailed introduction to the adhesive substrates and application requirements for key adhesive applications in headphones and charging cases.Speaker bonding and sealingRecommended product: PUR 1603 A/B fast curing polyurethane adhesive Machine dispensing or manual mixing is availableRapid curing at room temperature for 30 minutesStrong adhesion to various substratesHigh toughness and elasticityExcellent resistance to aging and chemicalsAdhesive substrates: copper, polycarbonate+glass fiber (PC+GF), aluminumApplication requirements: The speaker diaphragm and housing must be firmly bonded to prevent sound leakage and ensure optimal sound quality.Charging box magnet bonding Adhesive substrate: nickel plated magnet, PMMA (acrylic), PC (polycarbonate)Application: There is a small magnet inside the charging case, which helps to secure the earphones in place during charging.Adhesive between headphone speaker and FPC flexible circuit boardAdhesive substrate: Flexible Printed Circuit Board (FPC), metal contactsApplication: Adhesives should have excellent electrical insulation, heat resistance, and lightweight adhesion to maintain optimal signal transmission.Shell to shell bonding Adhesive substrates: polycarbonate (PC), acrylonitrile butadiene styrene (ABS), aluminum, glassApplication: The outer shell of the wireless earphone and charging case must be firmly bonded to protect the internal components from external impacts and improve the IPX level of the device.Recommended product: SIPC 1859 silicone adhesive sealant Excellent chemical resistance, low odor, good adhesionLow volatile matter not exceeding 500ppm, no corrosion or fogging in a sealed environmentResist moisture, dirt, and other atmospheric componentsReduce mechanical stress and tension caused by mechanical, thermal shock, and vibrationExcellent outdoor aging resistance, with…

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The key role of heat dissipation silicone grease in thermal management

2025-03-06

With the continuous improvement of electronic device performance, the heat generated by its internal components is also increasing. Especially in high-performance processors, graphics chips, LED lighting, power electronics and other applications, thermal management has become a key factor in equipment reliability and lifespan. In these applications, thermal grease plays a crucial role as an efficient thermal interface material. It can efficiently transfer the heat generated by electronic components to heat sinks or other cooling devices, ensuring the continuous and stable operation of equipment under high loads. This article will delve into the working principle, application advantages, and future development trends of heat dissipation silicone grease. 1、 Basic principle of heat dissipation silicone greaseThermal grease, also known as thermal grease or thermal paste, is a material with high thermal conductivity and low electrical conductivity, usually made by mixing silicone oil with thermal fillers (such as metal oxides, nitrides, etc.). Its main function is to fill subtle air gaps between electronic components and heat sinks to improve thermal conductivity efficiency. Although the surfaces of electronic components and heat sinks appear smooth, countless tiny irregularities can be seen under a microscope, which can lead to the formation of air gaps. Air is a poor conductor of heat, hindering the transfer of heat. Thermal grease fills these tiny gaps to minimize thermal resistance and improve the thermal management capability of the equipment.2、 Main characteristics of heat dissipation silicone greasehigh-thermal conductivityThe thermal conductive fillers contained in the heat dissipating silicone grease, such as aluminum oxide, zinc oxide, boron nitride, etc., have excellent thermal conductivity and can quickly transfer the heat generated by electronic components to the heat sink. Thermal conductivity is usually measured in W/m · K (watts per meter per Kelvin), and high-performance thermal grease can achieve a thermal conductivity of 3-7 W/m ·…

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Instrument battery flowmeter circuit board/power supply encapsulation

2025-03-05

In instruments such as flow meters, battery powered circuit boards need to work in complex environments for a long time, facing challenges such as moisture, dust, and vibration, and must be effectively sealed and protected. In order to ensure stability, the sealing material not only needs to have excellent protective performance, but also needs to meet the appearance requirements of transparency or semi transparency, and have a certain degree of adhesion with the metal shell.Core requirements for circuit board encapsulationThe working environment of instrument battery flow meters usually includes:High humidity – Water vapor may penetrate into the circuit, causing short circuits or corrosion;Vibration shock – mechanical shock may occur during equipment operation, affecting the stability of solder joints and electronic components;Outdoor weather resistance – materials must have good weather resistance when exposed to environmental factors such as ultraviolet radiation and temperature changes for a long time;Electrical insulation protection – prevents circuit board short circuits and improves system safety.Therefore, the ideal sealing material should have waterproof properties, appropriate adhesive strength, transparency, and excellent weather resistance. Encapsulation of instrument battery flowmeter circuit boardRecommended product: PUR 1635 A/B transparent light yellow polyurethane sealantPUR 1635 is a two-component solvent-free polyurethane material that can be cured at room temperature or by heating. After curing, it appears as a light yellow transparent color and is used in two-component sealing, filling, flame retardant and other fields. 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. Both room temperature and heating curing are available, and it can be deeply cured with low heat release and low shrinkage rate during curing; After curing, it has excellent flexibility and good flame retardant effect.▶ Excellent low-temperature characteristics and outstanding…

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