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How to choose battery sealing materials? Understanding the application differences between two high-performance thermal conductive potting adhesives in one article

2025-06-25

In the field of new energy batteries, internal sealing is not only a key step in protecting electronic components and preventing moisture from entering, but also directly affects the thermal conductivity efficiency and system safety performance between the battery cell, module, and liquid cooling plate.Battery thermal conductive sealing adhesive For the following application scenarios:Internal sealing of blade batteryTwo wheeled vehicle battery module encapsulationUAV battery protection encapsulationEnergy storage battery system encapsulationSolution PUR 1680 A/B SIPA 8250 A/BType/Type Polyurethane Sealing Adhesive Non Removable Organic Silicon Sealing Adhesive RemovableFeatures Features ☑ 100:16☑ Mixed viscosity 1400 mPas☑ Hardness A85☑ Thermal conductivity coefficient 0.8 W/m.k☑ Temperature resistance -50/130C☑ High adhesive strength☑ Flame retardant V0 ☑ 1: 1 additive molding☑ Mixed viscosity 3500 mPas☑ Cone penetration degree 40☑ Thermal conductivity 0.75 W/m.k☑ Temperature resistance -60/200C☑ A certain adhesive strength☑ Flame retardant V0Recommended ELAPLUS battery thermal sealing adhesive Whether it is blade battery modules that pursue strong structural adhesion, or BMS and drone batteries that emphasize flexible protection and repair possibilities, ELAPLUS polyurethane/silicone encapsulation solutions can accurately match the needs.Welcome to contact us for product TDS/SDS, sample testing, and automatic sealing solutions!Tags: Energy Storage Battery Adhesive Encapsulation · Blade Battery Module Adhesive · Removable Silicone Encapsulation · Thermal Conductive Encapsulation Adhesive · Organic Silicon Encapsulation Adhesive · Battery Encapsulation Adhesive

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Solution for Lightweight Application of Polyurethane Foam Adhesive in Two Wheel Electric Vehicles

2025-06-25

Under the rapid development trend of new energy two wheeled electric vehicles, product design is iteratively upgrading towards lighter, safer, and more environmentally friendly directions. Especially in battery pack systems, traditional structural sealant is no longer able to meet the multiple requirements of the new national standard for vehicle quality, flame retardant rating, and cost control. Therefore, polyurethane foam (PUR Foam) has gradually become a key material for the manufacturing of two wheeled electric vehicles due to its advantages of lightweight, flame retardancy, and strong structural support. Solution for Lightweight Application of Polyurethane Foam Adhesive in Two Wheel Electric VehiclesThis article by ELAPLUS will delve into the application of polyurethane foam adhesive in two typical scenarios: “foaming and sealing of battery packs for two wheeled electric vehicles” and “replacement of plastic structural frames”.Application 1: Foam sealing of battery packs – balancing lightweight and safety performanceWith the comprehensive upgrade of safety and energy efficiency standards for electric two wheelers by the country, weight control of battery systems has become an important part of vehicle compliance design. In the old scheme, traditional potting glue is usually used in quantities of over 2kg to ensure the fixation and protection of the battery cells. In the context of the new national standard, the weight must be compressed to within 400g, which puts higher requirements on the density and structural support performance of the sealing material. Polyurethane foam adhesive solutionRecommended product: PUR 1685 A/BPolyurethane foam adhesiveMixing ratio: 1:1Hardness: Shore D55, with rigidity close to that of plasticPerformance characteristics:☑ After foaming, a sturdy structural layer is formed to support the battery module☑ Reduce the overall number of parts and simplify assembly processes☑ Excellent thermal insulation and heat resistance, enhancing safety redundancy☑ Adjustable foaming ratio, suitable for different mold and structural requirementsThis product foams evenly during the…

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【 Technical expertise 】 ElaPLUS PUR 1601 Polyurethane Adhesive – A Truly ‘Capable of Bonding’ Structural Adhesive – Detailed Explanation

2025-06-25

With the continuous advancement of industrial manufacturing technology, the performance requirements for adhesive are also constantly increasing. Especially in the fields of new energy vehicles, consumer electronics, industrial equipment, etc., structural adhesives not only need to have excellent mechanical properties, but also need to balance environmental protection, safety, and operational convenience. Today we will introduce in detail a star product that combines high-strength adhesion, high flexibility, excellent weather resistance, and environmentally friendly low VOC characteristics – Elaplus PUR 1601 A/B two-component polyurethane structural adhesive. Polyurethane structural adhesive1、 Product Introduction: Why choose PUR 1601?Elaplus PUR 1601 is a two-component polyurethane adhesive developed independently by Yilian Functional Materials (Shanghai) Co., Ltd. It adopts a solvent-free formula, low odor, low VOC emissions, and complies with multiple environmental regulations such as ROHS and REACH. The product solidifies at room temperature and is suitable for high-strength bonding of structural components made of various materials. It is an ideal high-performance structural adhesive solution in the industrial manufacturing field.📌 The core advantages are as follows:✅ Environmental safety: Low VOC formula, compliant with ROHS and REACH standards✅ High adhesion: Excellent adhesion to materials such as metal, plastic, rubber, polyester, etc✅ High flexibility and elasticity: effectively cushioning external impact and extending the service life of structural components✅ Good operability: Suitable for automatic dispensing equipment and can also be manually mixed for use✅ Resistant to aging and chemical corrosion: not easily degraded after long-term use✅ Wide temperature range: -40 ℃ to 125 ℃, suitable for harsh environments2、 Typical application scenarios: Multi industry adaptation, outstanding performanceThanks to its excellent physical performance and operational adaptability, PUR 1601 is widely used in multiple industries, especially in assembly and packaging scenarios that require high structural strength and durability one ️⃣ In the field of new energy vehicles:Adhesive and sealing of battery pack shellSealing of…

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Is it difficult to bond car touch screens? A RTV silicone solution makes it easy for you to handle!

2025-06-25

With the rapid development of intelligent cockpit technology in automobiles, the touch screen of the vehicle’s central control has become the core of human-machine interaction. Whether it’s entertainment, navigation, air conditioning, or vehicle settings, a high-definition large screen carries more and more functions. However, the structural bonding technology behind the large screen is often overlooked. Today, we focus on a specific application point – the bonding problem between the screen film and aluminum frame of car touch screens, and bring a professional grade adhesive to solve such challenges: RTV SIPC 1822. Adhesive bonding of car touch screen1、 The challenge of bonding the structure of car touch screensIn the car display system, multi-layer composite structures such as touch glass, polarizing film, and conductive film need to be assembled onto aluminum alloy structural components through precision bonding. There are many technical challenges faced in this process:Limited bonding width: Due to appearance and structural design, the bonding surface of the screen frame is often only about 3mm, and the shear strength and initial bonding force of the adhesive must be excellent.High and low temperature impact: The temperature fluctuation of the car interior environment is large, ranging from minus 40 ℃ to 90 ℃ or even higher under sunlight exposure, requiring the colloid to have good thermal stability and low-temperature flexibility.High durability requirements: The vehicle’s lifespan starts at 10 years, and the adhesive needs to withstand long-term comprehensive environmental tests such as UV, moisture, vibration, dust, etc.Safety and Environmental Protection: The release material must be low volatile and non corrosive, especially not have a negative impact on materials such as PC and copper, and must comply with EU environmental regulations such as ROHS and REACH.2、 Solution recommendation: RTV SIPC 1822In response to the above challenges, we recommend using RTV SIPC 1822 neutral dealcoholized silicone…

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How can a high hardness polyurethane sealant be water-resistant, heat-resistant, and durable help electronic sensors achieve high reliability?

2025-06-25

In the trend of intelligent, lightweight, and modular electronic components, the reliability of encapsulation materials is becoming a key design consideration. Today, Yilian brings a star material that has been validated in multiple terminal scenarios – Elaplus PUR 1680 (D70) two-component polyurethane sealant, and shares a case study with the application scenarios of sensor products.Filled PU Potting 1、 Customer background and pain pointsA first tier international automotive parts supplier mainly produces electronic sensors for vehicles, including temperature sensors, position sensors, pressure sensors, etc. Its products need to work in complex working conditions for a long time, such as high temperature, high humidity, and strong vibration environments. The previously used foreign brand epoxy sealant had the following issues:After solidification, the colloid is brittle and prone to cracking during thermal shock;Poor control of bubbles during the sealing process resulted in high electrical breakdown rates for some batches of products;The high water absorption rate of the material leads to signal drift after long-term wet heat testing;The customer is looking for an alternative material that can balance “stable electrical performance, reliable sealing, waterproof and heat-resistant, non-toxic and environmentally friendly”.2、 Recommended material: Elaplus PUR 1680 (D70) high hardness polyurethane sealantThe recommended sealing solution for it is Elaplus PUR 1680 (D70) A/B two-component polyurethane adhesive. This material is designed specifically for mid to high end electronic packaging and has excellent comprehensive performance. It has been widely used in communication equipment, power modules, controllers, vehicle sensors, industrial control board encapsulation, and other fields. The core advantages include:High hardness and toughness: Shore D65 ± 5 hardness after curing, balancing structural protection and stress buffering;Excellent electrical insulation performance: volume resistivity up to 5 × 10 ¹⁴Ω· cm, dielectric strength up to 20kV/mm;Extremely low water absorption rate: 24-hour water absorption rate<0.2%, outstanding moisture resistance;Stable thermal performance: operating temperature range of…

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High performance epoxy potting adhesive EP 1700 A/B application case sharing | Ideal choice for high-temperature resistant electronic packaging

2025-06-25

In the context of rapid development of modern electronic products, electronic devices have put forward higher requirements for the performance of potting adhesives – not only to have excellent electrical insulation performance, but also to withstand long-term tests in harsh environments such as high temperature, vibration, and humidity. Today, Elaplus will share an application case of the EP 1700 A/B two-component epoxy potting adhesive launched by ELAPLUS, focusing on its outstanding performance in high-temperature electronic component potting, providing a one-stop reliable packaging solution for the electronic manufacturing industry.Project Background: Packaging Challenges of High Temperature Resistant Electronic ComponentsA certain industrial control equipment manufacturer has long faced a thorny problem: its main control circuit board needs to operate stably in a long-term high temperature (working environment temperature is maintained above 130 ℃) and complex electromagnetic interference environment. Traditional single component epoxy or silicone sealing materials frequently experience cracking, decreased adhesion, and even surface carbonization during high-temperature aging testing, seriously affecting product stability and after-sales maintenance costs.High temperature resistant epoxy sealantAfter multiple rounds of scheme screening, the customer ultimately chose the EP 1700 A/B two-component heat cured epoxy potting adhesive launched by ELAPLUS for verification and achieved successful application. Product selection: Why EP 1700 A/B?EP 1700 A/B is a two-component epoxy resin sealant designed specifically for high reliability electronic devices, with the following core advantages:Excellent high-temperature stability: The glass transition temperature (Tg) of the cured material can reach 150 ℃, making it suitable for high-temperature conditions.Excellent mechanical performance: hardness ≥ 80 Shore-D, shear strength ≥ 8MPa, able to withstand mechanical impact and vibration after sealing.Strong electrical insulation performance: volume resistivity up to 1.0 × 10 ¹⁵Ω· cm, dielectric strength>15KV/mm, ensuring the safety of high-voltage devices.All round protection: It has strong resistance to damp and heat, moisture, dust, oil, acid and alkali, and aging.Application…

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EP 1702 white epoxy potting adhesive, easily meets the waterproof and insulation challenges of electronic components!

2025-06-25

In modern electronic manufacturing, more and more terminal equipment put forward higher requirements of “multi performance integration” for potting adhesive: not only must it be waterproof and moisture-proof, reliable insulation, strong anti-aging ability, but also must achieve low shrinkage, bright surface, and bubble free packaging effect. Today, we will share a real case of ELAPLUS star product – EP 1702 white epoxy potting adhesive in customer applications, taking you to understand how it easily meets the challenges of electronic component potting! Project background: The customer’s pain points are highlighted, and traditional adhesives are difficult to handleA customer specializing in industrial electronic module packaging has been searching for a sealing adhesive that combines easy operation, excellent insulation, and moisture resistance stability for their small relays, power modules, controllers, and other products. Although the adhesive used previously had decent apparent performance, there were several issues:Slow curing at room temperature, affecting the production line rhythm;During the sealing process, there are many bubbles that are difficult to eliminate;After curing, the surface is not smooth enough and the appearance is not good;It is prone to aging and shedding in humid and hot environments.So, the customer decided to introduce ELAPLUS recommended EP 1702 two-component ambient temperature epoxy potting adhesive and conduct a one week potting and environmental testing. Solution: EP 1702 white epoxy sealantEP 1702 is a white two-component ambient temperature curing epoxy potting adhesive designed specifically for electronic devices, with the following core advantages:Low exothermic reaction, with a shrinkage rate of less than 2% during the curing processStrong operability, the operable time after mixing can reach 40 minutes to 2 hoursAfter curing, the surface is shiny and does not bubbleWide temperature resistance range (-40~120 ℃), stable electrical performanceThe customer selected the standard EP 1702 white potting adhesive for testing according to their requirements, with an…

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SIPA 3052, lighter than glass and more transparent than glass, is specially designed for car headlight lenses and LED optical modules!

2025-06-25

In LED optical devices, intelligent car lights, and new display modules, transparent encapsulation adhesive is not only a protective material, but also determines light efficiency, durability, and reliability. Today we are introducing a truly optical grade transparent packaging solution from Elaplus. ——SIPA 3052 optical grade liquid silicone, make your optical module “transparent”!SIPA 3052 Optical Grade Liquid Silicone – High Transparency Packaging Material Specially Designed for LED Lens Modules. SIPA 3052 Optical Module Packaging AdhesiveSIPA 3052 is a two-component heat curing transparent silicone gel with excellent optical performance and long-term environmental stability. Specially developed for applications such as LED packaging, car headlight lenses, and optical waveguide modules.

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Solution for bonding and sealing copper tubes in battery pack water-cooled plates

2025-06-20

With the rapid development of new energy vehicles, electric tools, and energy storage systems, the thermal management system of power batteries has become a key link in ensuring performance, safety, and lifespan. Among them, the water-cooled plate, as the core heat exchange component, widely adopts a structural design of interference fit between copper pipes and aluminum bottom plates to achieve efficient heat dissipation. However, traditional brazing processes face a series of challenges in actual mass production, which has driven the demand for high thermal conductivity structural adhesive solutions from enterprises. This article will focus on the application scenarios of bonding and sealing copper tubes in battery pack water-cooled plates, analyze the challenges faced, and recommend a high-performance and process friendly structural adhesive – EP 1710 high thermal conductivity epoxy sealant – to assist in the upgrading and iteration of thermal management systems.1、 Application background: Structural characteristics of copper tube aluminum bottom water-cooled plate The water-cooled plate is usually composed of a high thermal conductivity aluminum alloy bottom plate and a high thermal conductivity copper tube. The copper tube is responsible for conducting the coolant, while the aluminum bottom plate is in close contact with the battery module to complete heat exchange.In order to improve heat dissipation efficiency and structural stability, a combination of copper tube and aluminum groove interference fit+brazing reinforcement is often used in design. Although this design exhibits excellent thermal conductivity efficiency, it faces a series of technical difficulties in actual manufacturing.2、 Application Challenge Analysis

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