Adhesive sealant-Elaplus functional Materials Co., LTD

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 VOC? Does the adhesive sealant contain VOC?

2025-01-03

What is VOC? VOC stands for Volatile Organic Compounds, a type of organic compound that easily evaporates at room temperature. They have high vapor pressure and low water solubility, and can enter the air through evaporation, participate in chemical reactions, and form photochemical smog or air pollutants. Common VOC include formaldehyde, benzene, toluene, ethanol, ethyl acetate, etc.VOC come from a wide range of sources, including industrial production, building materials, daily chemicals such as coatings, cleaning agents, adhesives, and transportation. Adhesive sealant, as a common chemical material used in construction and industry, may contain VOC in its composition.The impact of VOC on health and the environmentThe impact on healthShort term exposure: can cause symptoms such as dizziness, headache, nausea, throat and eye irritation.Long term exposure: Certain VOCs (such as benzene) are considered carcinogenic and may cause chronic respiratory diseases and neurological damage.The impact is greater on sensitive populations such as children, pregnant women, and the elderly.Impact on the environmentVOC and nitrogen oxides undergo chemical reactions under sunlight, generating ozone and photochemical smog, becoming one of the important causes of air pollution.VOC emissions may also lead to indoor air pollution and global warming.Does the adhesive sealant contain VOCsWhether adhesive sealant contains VOCs mainly depends on its type and formula composition. Traditional sealantMany early formulations of sealants contained highly volatile organic solvents, such as toluene and ethyl acetate, which were the main sources of VOCs. During use and curing, these solvents will evaporate into the air, causing adverse effects on human health and the environment.Modern environmentally friendly sealantWith the increasing demand for environmental protection, more and more adhesive sealants are adopting low VOC or VOC free formulas, mainly divided into the following categories:Water based sealant: Using water as a solvent, it contains almost no VOCs and is widely used in indoor decoration and…