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Silicone sealant | Coating for coil wrapping of rotary transformer

2025-02-14

Rotary transformers, as electrical equipment with high precision and stability requirements, are widely used in various industrial automation and control systems. Especially in fields such as electric motor drive, robotics, aerospace, etc., rotary transformers have extremely high requirements for environmental adaptability. To ensure its stable operation under harsh conditions such as long-term, high temperature, high pressure, and vibration, coil wrapping and sealing treatment are crucial. Silicone sealant | Coating for coil wrapping of rotary transformerThe challenge of wrapping the coil of a rotary transformerThe coils of a rotary transformer typically require protection through encapsulation or coating to address the following challenges:High temperature environment: Transformers may experience temperatures above 150 ° C during operation, and it is required that the sealing material can work stably for a long time to prevent material aging and failure caused by temperature fluctuations.Good permeability and wrapping: In the coil wrapping of the rotary transformer, it is required that the sealant can effectively penetrate into the gaps between the coils, ensuring that there are no missed areas and providing uniform protection.Resistance to mechanical and thermal shock: Rotary transformers are often exposed to environments of vibration, shock, and thermal changes, so their sealing materials must be able to alleviate the stress caused by mechanical and thermal shock.SolutionRTV SIPC 1823 neutral dealcoholized silicone adhesive sealant is a flowable moisture absorbing cured silicone gel that forms a flexible rubber body after curing, fully complying with the EU ROHS directive requirements. During the curing process, alcohol substances are released, which are non corrosive to materials such as polycarbonate (PC) and copper. They have good adhesive and sealing properties for the vast majority of materials, protecting electronic products in a stable state under harsh conditions.The elastic material coated with RTV 1823 silicone adhesive sealant on the coil after curing has the…

Application of adhesive sealant: case study on lead sealing of electric vehicle control box

2025-02-14

With the booming development of the electric vehicle (EV) industry, more and more electronic control units (ECUs) and electrical components are facing increasingly harsh working environments. These control boxes usually need to maintain a high degree of protection, especially the sealing of the lead parts, to prevent moisture, dust, or chemical substances from penetrating and to avoid damage to the electrical system. Therefore, selecting appropriate adhesive materials has become one of the key factors that electric vehicle manufacturers must consider when designing electrical control systems.Customer Case Study Sharing——Application: Lead sealing of electric vehicle control boxLead sealing of electric vehicle control box ——Glue Point: Sealing of Outward Line——Functional requirements: For wire harness wrapping and bonding, with good filling properties between small and parallel wire harnesses——Viscosity range: 30000-70000 cpsBased on the above requirements, Yilian SIPC 1823 high-performance silicone sealant has become an ideal solution for sealing the leads of electric vehicle control boxes due to its excellent adhesion, good filling properties, and suitable viscosity.RTV SIPC 1823 neutral dealcoholized silicone adhesive sealant is a flowable moisture absorbing cured silicone gel that forms a flexible rubber body after curing, fully complying with the EU ROHS directive requirements. During the curing process, alcohol substances are released, which are non corrosive to materials such as polycarbonate (PC) and copper. They have good adhesive and sealing properties for the vast majority of materials, protecting electronic products in a stable state under harsh conditions. The lead sealing RTV 1823 silicone adhesive sealant of the electric vehicle control box has the following characteristics after curing:✔ Single component, easy to use, short non stick time✔ Excellent chemical resistance✔ Resist moisture, dirt, and other atmospheric components✔ Reduce mechanical stress and tension caused by mechanical, thermal shock, and vibration✔ Excellent electrical insulation performance, anti corona✔ Excellent outdoor aging resistance, with a service…

Elaplus PCB Terminal Sealing Solution

2025-02-12

In the production process of modern electronic products, PCB (printed circuit board) is one of the core components, especially in products that require long-term stable operation, the protection of wiring terminals and solder joints is particularly important. A certain electronic manufacturing company is facing severe challenges when producing PCBs for industrial equipment. Wiring terminals and solder joints are often exposed to harsh environments such as high temperatures, moisture, dust, and chemical corrosion. These environmental factors not only easily lead to circuit short circuits, corrosion, and solder joint damage, but also may cause product failures, thereby affecting the stability of the entire system and customer satisfaction.Especially in scenarios that require waterproofing and moisture resistance, traditional solder joint protection methods often fail to provide sufficient sealing and bonding strength, ultimately affecting the long-term service life of the product. Therefore, the company urgently needs a material solution that has excellent waterproof, moisture-proof, and corrosion-resistant properties, while effectively enhancing the strength of solder joints and protecting wiring terminals. Application: PCB terminal sealing caseAdhesive dots: waterproof sealing of plastic terminals, reinforcement and protection of solder jointsSealing solution for PCB wiring terminalsFunctional requirements: Flame retardant V-0, good adhesionViscosity range: high viscosity microfluidicsSolution: SIPC 1816 silicone adhesive sealantRTV SIPC 1816 ketoxime type silicone adhesive sealant is a neutral silicone sealing material that absorbs moisture from the air and solidifies at room temperature. The product is environmentally friendly and has been certified by ROHS, Reach, TSCA, and VOC. It has good adhesion and sealing performance for the vast majority of materials, protecting electronic products in a stable state under harsh conditions.The cured elastomer of RTV 1816 silicone adhesive sealant has the following characteristics:✔ Excellent chemical resistance✔ The adhesive layer is elastic, scrub resistant, and has good adhesion✔ Resist moisture, dirt, and other atmospheric components✔ Reduce mechanical stress and…

Application of adhesive sealant | Sealing of resistor cavity

2025-02-12

Background and ChallengesThe stability of electronic components is crucial in high-temperature environments. A well-known electronic manufacturer is facing the challenge of sealing the resistor cavity when producing high-performance resistors. Traditional sealing materials are prone to aging at high temperatures, leading to seal failure and affecting product performance and lifespan.Application of adhesive sealant | Sealing of resistor cavity customer demandFunctional requirement: Temperature resistance up to 230 ℃, ensuring long-term stable operation in high-temperature environments.Viscosity range: 15000-25000 CPS, meeting the requirements for precise coating.Product SolutionsTo meet the high temperature sealing needs of customers, ELAPLUS recommends SIPC 1821 RTV neutral dealcoholized silicone adhesive sealant. This product has the following advantages:RTV SIPC 1821 neutral dealcoholized silicone adhesive sealant is a flowable moisture absorbing cured silicone gel that forms a flexible rubber body after curing, fully complying with the EU ROHS directive requirements. During the curing process, alcohol substances are released, which are non corrosive to materials such as polycarbonate (PC) and copper. They have good adhesive and sealing properties for the vast majority of materials, protecting electronic products in a stable state under harsh conditions. RTV SIPC 1821 silicone adhesive sealant cured elastomer has the following characteristics:✔ Single component, easy to use, short non stick time✔ Excellent chemical resistance✔ Resist moisture, dirt, and other atmospheric components✔ Reduce mechanical stress and tension caused by mechanical, thermal shock, and vibration✔ Excellent electrical insulation performance, anti corona✔ Excellent outdoor aging resistance, with a service life of up to 20-30 years✔ Stable mechanical and electrical performance between -60-260 ℃Elaplus SIPC 1821 RTV neutral dealcoholized silicone adhesive sealant has become an ideal choice for high-temperature sealing of electronic components due to its excellent high temperature resistance, environmental certification, and outstanding bonding performance. In the application of resistor cavity sealing, SIPC 1821 effectively solves the sealing challenge in high-temperature environments,…

What is thermal conductive silicone grease? What are the characteristics and uses?

2025-02-11

Thermal grease helps transfer heat between hot components such as CPUs and GPUs and cooling devices (usually heat sinks). This article explores the important role of thermal grease, including its composition, characteristics, and how to use it to ensure good heat transfer. We will discuss different types of thermal grease, including silicone, metal, ceramic, carbon based, and liquid metal, and how each grease meets specific needs. This article also explains the correct method of applying thermal grease on CPUs to avoid common errors and misconceptions, demonstrating its extensive role in maintaining the stability and efficiency of electronic devices. How does thermal grease enhance thermal conductivity?Thermal grease, commonly known as thermal paste, plays an important role in controlling the heat of electronic devices. Its main function is to facilitate heat transfer from hotter components (such as CPUs or GPUs) to cooler components (such as heat sinks) by filling the air gaps between surfaces. At the molecular level, there are several mechanisms that can explain how thermal oils improve thermal conductivity:The surfaces of heat sources (such as CPUs) and heat sinks may appear smooth to the naked eye, but in reality, they are rough and uneven on a microscopic scale. These uneven areas will create small air gaps when in contact with the surface, which will hinder heat transfer as air is a poor conductor of heat. Thermal grease will fill these air gaps and replace air with materials with much higher thermal conductivity, thereby improving heat transfer efficiency. Thermal conductive grease is made by mixing basic materials such as silicone or synthetic oil with thermal conductive particles such as metal, ceramic, or carbon. These particles form a thermal conduction pathway network in the oil, allowing heat to propagate more efficiently than through the base material alone. This network improves the overall…

High frequency sound channel sealing/cover shell sealing

2025-02-11

In modern electronic device manufacturing, high-frequency sound channel sealing and cover shell sealing are key links to ensure device performance and reliability. Organic silicone adhesive sealant has become an ideal choice in this field due to its excellent physical and chemical properties. This article will focus on the application of silicone adhesive sealant in high-frequency sound channel sealing/cover shell sealing, and discuss in detail the functional requirements, viscosity range, and specific model selection of Elaplus.High frequency sound channel sealing/cover shell sealing. Functional requirements(1) Smooth appearanceIn the sealing of high-frequency head channels and cover shell, a smooth appearance is an important functional requirement. Organic silicone adhesive sealant can form a uniform and smooth surface after curing, which not only improves the appearance quality of the product, but also helps prevent the accumulation of dust and impurities, thereby extending the service life of the equipment.(2) Low volatile matterLow volatile matter is another key functional requirement. Organic silicone adhesive sealant releases very little volatile matter during the curing process, which helps reduce environmental pollution and also avoids corrosion and damage to internal components of equipment.(3) 60 degree water bath has good air tightnessAir tightness is a crucial performance indicator in high-frequency head channel sealing and cover shell sealing. Organic silicone adhesive sealant can maintain good airtightness in a 60 degree water bath environment, ensuring stable operation of equipment in various harsh environments.Viscosity range(1) Semi fluidThe semi fluid state of silicone adhesive sealant has good fluidity, which can easily fill small gaps and complex geometric shapes, ensuring the uniformity and consistency of the sealing effect.(2) OintmentOrganic silicone adhesive sealant in paste state has high viscosity and strong adhesion, suitable for sealing occasions that require high mechanical strength and durability.Yilian model: SIPC 1859 silicone adhesive sealantRTV 1859 alcohol free silicone adhesive sealant is a neutral…

Silicone adhesive sealant | Application of sensor cover sealing

2025-02-11

In today’s era of widespread application of intelligent and automated equipment, sensors are almost ubiquitous and undertake key tasks such as monitoring, feedback, and control. However, in complex environments, poor sealing of sensor cover plates can lead to performance degradation and even affect the reliability of the entire system. Therefore, how to choose the appropriate sealant has become a key concern for engineers. SIPC 1823 black silicone adhesive sealant is an ideal choice for sensor sealing due to its excellent performance. Adhesive application point: bonding and sealing between the outer shell and the upper coverFunctional requirements: Adhesive PBT, fast curing speedViscosity range: 25000-50000ppsRecommended models for Elaplus:SIPC 1823 black silicone adhesive sealant 30000cpRTV SIPC 1823 neutral dealcoholized silicone adhesive sealant is a flowable moisture absorbing cured silicone gel that forms a flexible rubber body after curing, fully complying with the EU ROHS directive requirements. During the curing process, alcohol substances are released, which are non corrosive to materials such as polycarbonate (PC) and copper. They have good adhesive and sealing properties for the vast majority of materials, protecting electronic products in a stable state under harsh conditions. The cured elastomer of RTV 1823 silicone adhesive sealant has the following characteristics:▶ Single component, easy to use, short non stick time▶ Excellent chemical resistance▶ Resist moisture, dirt, and other atmospheric components▶ Reduce mechanical stress and tension caused by mechanical, thermal shock, and vibration▶ Excellent electrical insulation performance, anti corona▶ Excellent outdoor aging resistance, with a service life of up to 20-30 years▶ Stable mechanical and electrical performance between -60-200 ℃application area▶ Sealing of LED lamps, sealing of plastic metal shells; PCB board components and wiring harness fixation▶ Exquisite electronic accessories, waterproof coatings for electrical and communication equipment▶ Small modules, optoelectronic displays, and circuit boards, with thin layer sealing below 6mm and leak sealing▶…

Successful application of RTV SIPC 1816 in FDA sealing of kitchen pot lids

2025-02-11

1、 Case backgroundA well-known kitchenware brand faced an important challenge when launching a new kitchen lid: how to achieve efficient bonding and sealing between glass and stainless steel while meeting food safety standards (FDA requirements). This pot lid design requires a small bonding area, high construction accuracy, and excellent weather resistance and chemical resistance to adapt to the working environment of high temperature, humidity, and the presence of various chemicals in the kitchen.Kitchen lid sealing. 2、 Customer needs and challengesIn this project, the client mainly focuses on the following points:Food grade safetyDue to the direct contact of the product with food, the sealant must comply with FDA standards and meet environmental certification requirements such as ROHS, REACH, TSCA, and VOC to ensure health and safety during use.Material adhesionThe product involves the bonding of two substrates, glass and stainless steel, requiring the sealant to form a firm and stable bonding interface between different materials.Construction accuracyDue to the small bonding area and complex shape, high precision is required for dispensing. The sealant needs to have excellent thixotropy to ensure that the head and tail are fused without obvious breakage or defects during the dispensing process.Long term stabilityConsidering the particularity of the kitchen environment, after curing, the sealant should maintain good mechanical and electrical properties within the temperature range of -60 ℃ to 260 ℃, and have the characteristics of moisture resistance, chemical resistance, pollution resistance and aging resistance to ensure that the service life of the product can reach 20-30 years.Recommended model: SIPC 1816 gray silicone adhesive sealantRTV SIPC 1816 ketoxime type silicone adhesive sealant is a neutral silicone sealing material that absorbs moisture from the air and solidifies at room temperature. The product is environmentally friendly and has been certified by ROHS, Reach, TSCA, and VOC. It has good adhesion and…

Application of silicon adhesive sealant | Sealing of slip ring motor welding plate and lead wire sealing

2025-02-11

Slip ring motors are widely used in automation equipment, wind power generation, medical instruments, and other fields. Their stable operation relies on efficient solder plate sealing and lead wire sealing. The selection of sealing materials is crucial as motors are subjected to high temperatures during operation and may be affected by external environments such as dust, moisture, and vibration. Therefore, it is important to select the right sealing material. customer demandA certain motor manufacturer encountered the following technical challenges while producing slip ring motors:Sealing requirements: Ensure the reliability of welding plate sealing and lead sealing, prevent external pollutants from entering, and ensure long-term stable operation of the motor.High temperature resistance: The temperature of the motor may reach 150 ℃ during operation, so the sealing material needs to have excellent temperature resistance.Curing speed: Production efficiency requires the sealant to cure quickly to improve assembly efficiency.Suitable viscosity range: The sealant needs to have moderate fluidity, be easy to apply, and not sag.Solution Sealing of welding plates and sealing of leads for slip ring motorsFor the needs of this customer, we recommend using BaiGao SIPC 1821 (black, viscosity 25000 CPS) or SIPC 1823 (white, viscosity 35000 CPS) silicone adhesive sealant. These two products have the following advantages:RTV SIPC 1821 neutral dealcoholized silicone adhesive sealant is a flowable moisture absorbing cured silicone gel that forms a flexible rubber body after curing, fully complying with the EU ROHS directive requirements. During the curing process, alcohol substances are released, which are non corrosive to materials such as polycarbonate (PC) and copper. RTV SIPC 1821 silicone adhesive sealant has good bonding and sealing properties for the vast majority of materials. The cured elastomer has the following characteristics:▶ Single component, easy to use, short non stick time▶ Excellent chemical resistance▶ Resist moisture, dirt, and other atmospheric components▶ Reduce…