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Home appliance control board potting protection solution | Elaplus recommends PUR 1635 polyurethane potting compound

2025-03-20

Why do home appliance control boards need professional sealing?Home appliance control boards (such as air conditioning, smart toilets, range hood PCBs) will face long-term challenges:✅ Wet water vapor erosion → Line short circuit, induction failure;✅ High temperature oil fume/steam → accelerated aging of components;✅ Risk of vibration drop → Welding point cracking and functional failure;✅ Environmental regulations require RoHS and UL certification.Defects of traditional solutions:✖ Epoxy resin is brittle and prone to cracking;✖ Silicone curing is slow (12H+), which affects production efficiency;✖ Solvent containing adhesives pollute the environment and are difficult to meet export standards.PUR 1635 Core Advantage: The “Golden 4-hour Rule” for Home Appliance EncapsulationPUR 1635 is a two-component solvent-free polyurethane material that can be cured at room temperature or by heating. After curing, it appears light transparent and is used in two-component sealing, filling, flame retardant and other fields. The raw materials do not contain heavy metals, are environmentally friendly, have wide process operability, high physical properties of the finished product, 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. Product characteristicsExcellent low-temperature characteristics and outstanding weather resistanceExcellent flame retardancy, reaching V-0Excellent electrical insulation and stabilityGood water and moisture resistance, with extremely low water absorption rateHas good adhesion to most metals and plasticsTypical applications■ Encapsulation of electronic capacitors and automotive electronic modules;Sealing of control PCB boards for household appliances such as range hoods, microwave ovens, rice cookers, washing machines, air conditioners, etc;■ Moisture proof and water-resistant sealing protection for smart toilets, induction toilets, circuit boards for metal induction trash cans, and magnetic induction coils in daily lifeTypical application scenariosPUR 1635 Solution for Protection Requirements of Home…

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SIPC 1822 easily solves the adhesion between lamp bead backplate and aluminum shell

2025-03-19

A certain LED lighting company is facing difficulties in bonding the back plate of the lamp bead to the aluminum shell: Industry difficultyIn the production process of LED strip lights, the bonding between the back plate of the lamp bead and the aluminum shell often faces three major challenges:✅ Insufficient thermal conductivity of traditional colloids leads to poor heat dissipation✅ Aging of outdoor environment leads to cracking of adhesive layer✅ Short operation time affects production line efficiencyThe customer urgently needs a glue solution with a thermal conductivity of around 1W/m · K, easy to operate in a flowing state, and excellent environmental resistance.Solution: SIPC 1822 single component thermal conductive adhesiveWe recommend: SIPC 1822， Perfectly matching customer needs:✅ Accurate thermal conductivity: thermal conductivity of 0.7 W/m · K, efficient heat dissipation, ensuring stable operation of the lamp beads;✅ Convenient operation: Flowing state gel, 5-10 minutes non stick to hands, suitable for automated dispensing process;✅ Ultra long lifespan: Excellent outdoor aging resistance, with a service life of 20-30 years, anti pollution and anti humidity, and strong weather resistance;✅ Safe and reliable: Excellent electrical insulation performance (anti corona), resistance to extreme temperatures ranging from -60 ℃ to 200 ℃, and zero concern for mechanical stress.

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Application solution of Elaplus electronic adhesive in routers

2025-03-19

In the construction of smart homes, industrial Internet of Things (IIoT), and 5G base stations, high-performance routers are key nodes that support massive data transmission and low latency communication. The complexity of its application scenarios has raised higher requirements for the stability, heat dissipation efficiency, and electromagnetic compatibility of devices. Internal structure diagram of routershell structureLightweight plastic or metal casing should balance electromagnetic shielding (EMI) and environmental protection. Internal PCB componentsIntegrate the main control chip, RF module, memory, etc., and avoid moisture, corrosion, and dust intrusion.Thermal Management SystemEquipped with heat sinks, fans, or thermal interface materials for high-performance chips such as 5G modules and CPUsKey application points of adhesives Shell sealing and fixationTraditional screw fixation may create gaps, causing dust and moisture to enter and affect internal circuits. Sealing glue can achieve seamless sealing, enhance protection, and reduce weight.thermal managementChip heating can cause performance degradation or even damage, and the adhesive needs to have both adhesion and high thermal conductivity to quickly conduct heat to the heat dissipation module.conformal coatingThe surface coating of PCB can resist short circuits and corrosion caused by humid environments, extending equipment life.ELAPLUS adhesive recommendation Shell sealing – SIPC 1859 silicone sealantProduct characteristicsGood adhesion, seismic buffering, aging resistance, excellent chemical resistance, and resistance to high and low temperatures (-60 ° C~300 ° C)Product advantagesRealize IP67 level sealing to avoid gel cracking caused by cold and hot cycles, suitable for outdoor routers or industrial grade equipment.Thermal Management TCMP 1935 Thermal Conductive gel Product characteristicsThermal conductivity of 3.5 W/m · KLow stress applicationsSoft and compressible filling gapsProduct advantagesThixotropic low stress application, liquid thermal conductive gel gasket, compared with traditional materials, provides enhanced reliability, rework, and significantly reduces the overall cost.Conformal coating – Coating 9060 Product characteristicsTransparent single component, easy to operate, low viscosity environmentally friendly fluid, good elasticity,…

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SIPC 2121 transparent room temperature curing adhesive, efficient sealing and protection solution for servo encoder circuit board covering

2025-03-14

In the field of industrial automation, the protection of servo encoder circuit boards is crucial. Choosing a suitable coating material is particularly crucial to ensure the long-term stable operation of the equipment. This article will share a practical application case and recommend a high-performance product – RTV SIPC 2121 transparent silicone sealant, to help you solve common problems in servo encoder circuit board coating. Analysis of adhesive demandThe requirements for adhesive coating on servo encoder circuit boards usually include the following points: Transparency: does not affect the appearance and inspection of the circuit board.Moderate adhesion: Ensure a strong bond between the coating layer and the substrate, while also facilitating subsequent repairs.Room temperature curing: Avoid damage to sensitive components caused by high-temperature curing.SolutionRTV SIPC 2121 is a coating adhesive designed specifically for high demand electronic components, with the following excellent characteristics: High transparency and low viscosityColloidal transparent and colorless, does not affect the visual inspection and aesthetics of the circuit board.Good fluidity, able to evenly cover the surface of complex circuit boards, ensuring no dead corners in the covering effect.Excellent physical and mechanical propertiesAfter curing, it forms a high-strength colloid with excellent seismic buffering ability, protecting the circuit board from external impacts.Moisture proof, dust-proof, and corona proofProvide comprehensive protection functions to extend the service life of servo encoders.High and low temperature resistance performanceThe working temperature range is wide (-60 ℃ to 250 ℃), suitable for various extreme environments.Excellent aging resistance performanceThe service life is up to 20-30 years, and it does not turn yellow or leak oil after curing, with stable and reliable comprehensive performance.The coating of servo encoder circuit board is a key link to ensure equipment performance. Choosing a high-quality coating adhesive can not only improve product quality, but also reduce maintenance costs in the later stage. If you…

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Elaplus Case Study on Welding Point Protection of Rotary Transformer

2025-03-14

In precision electronic components such as rotary transformers, the long-term stability and reliability of solder joints directly affect the performance and lifespan of the equipment. However, as a key part of electrical connections, solder joints are prone to failure problems such as virtual soldering, oxidation, and short circuits due to long-term exposure to complex environments such as high temperature, vibration, and humidity. Therefore, effective protection of solder joints has become a crucial part of the manufacturing process of rotary transformers. This article will combine practical cases to analyze in detail the challenges faced by solder joint protection and the excellent solution of silicone material SIPC 1823, helping more enterprises find efficient and reliable material choices in solder joint protection.Specific requirements of customers for solder joint protective adhesiveAccording to the customer’s application feedback and technical requirements, the solder joint protective adhesive must meet the following points:Project requirementsLong term temperature resistance above 120 ℃The package performance can fully package the solder joints without sagging or fallingThixotropic semi fluid, convenient for dispensing, with natural stacking abilityExcellent electrical insulation with excellent insulation performance, preventing leakage and short circuitConstruction process single component, room temperature curing or accelerated curing optionalRecommended product: SIPC 1823 silicone solder joint protective adhesive The cured elastomer of RTV 1823 silicone adhesive sealant has the following characteristics:■ Single component, easy to use, short non stick time■ Excellent chemical resistanceResistance to moisture, dirt, and other atmospheric componentsReduce mechanical stress and tension caused by mechanical, thermal shock, and vibrationExcellent electrical insulation performance and anti coronaExcellent outdoor aging resistance, with a service life of up to 20-30 yearsStable mechanical and electrical performance between -60-200 ℃Today, as the electronics industry moves towards high-performance and high reliability development, solder joint protection has become an important factor affecting product life and safety. SIPC 1823 organic silicon solder joint…

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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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