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Industry Application

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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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Application of Elaplus epoxy potting compound | Potting of washing machine sensor

2025-03-05

In today’s constantly upgrading and replacing home appliances, washing machines, as an important component of the home appliance market, have a direct impact on the stability and service life of the products due to the packaging process of their sensors. Traditional packaging materials often suffer from problems such as high curing temperature, large heat release, and high volume shrinkage rate, which can easily cause damage to electronic components or uneven encapsulation, thereby affecting product performance. Meanwhile, with the increasingly strict national environmental standards, many harmful components and high-energy curing methods in traditional adhesives are gradually not meeting market demand.Customer CaseA well-known home appliance manufacturer has put forward higher requirements for the packaging process of sensors in the development of a new generation of washing machines. Traditional epoxy adhesives suffer from excessive heat and uneven shrinkage during the curing process, leading to leakage and local stress concentration in packaged sensors, ultimately affecting the overall quality and reliability of the product.Glue demandTwo component epoxy, the color of the adhesive after curing is close to the color of the shell, naturally curing, meeting environmental protection requirementsRecommended product: EP 1702 white epoxy sealant EP 1702 is a two-component epoxy adhesive designed specifically for sealing sensors, electronic components, and circuit boards in washing machines. Its unique formula design allows it to complete the natural curing process at room temperature, which not only greatly reduces production energy consumption and equipment complexity, but also ensures safety and stability during the curing process. After curing, EP 1702 appears milky white, similar in color to the washing machine casing, ensuring a harmonious and unified overall appearance of the product and enhancing its grade.In addition to its successful application in the sealing of washing machine sensors, EP 1702 also has broad application prospects in other electronic component sealing and circuit…

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PU potting compound – high-performance protection and packaging solution

2025-03-05

Sealing and packaging technology plays a crucial role in modern industrial and electronic product manufacturing processes. PU sealant, as a new type of environmentally friendly and efficient sealing material, has gradually become the preferred material in the industry due to its excellent physical and chemical properties. This article will delve into the principles, characteristics, application areas, and construction precautions of PU sealant, helping readers to fully understand this product and providing strong reference for procurement and use. 1、 Introduction to PU potting compoundPU sealant is a polymer material based on polyurethane system, mainly used in electronic components, mechanical equipment, handicrafts and other fields that require protection and packaging. It forms a stable three-dimensional cross-linked network through chemical reactions, which not only effectively fills the gaps inside the product, but also has excellent corrosion resistance, waterproofing, shock resistance and other characteristics. In recent years, with the continuous upgrading of industrial technology, PU sealant has quickly occupied a place in the market. Its environmental friendliness and high-performance characteristics make it an ideal choice for many high-end projects.2、 Main characteristics of PU potting compound

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