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 box
Lead 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 cps
Based 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 life of up to 20-30 years
✔ Stable mechanical and electrical performance between -60-200 ℃
In practical applications, SIPC 1823 can perfectly wrap each lead and fill all gaps in enclosed areas. Due to its moderate viscosity, SIPC 1823 can evenly spread around each wire joint, forming a complete sealing layer that effectively prevents any external substances from infiltrating. At the same time, the excellent adhesive performance of the sealant ensures a good bond between the leads and the control box, enabling the entire system to cope with challenges from vibration, impact, and different climatic conditions.
Tags: Lead sealing · Organic silicone adhesive sealant · Motor control box lead sealing · Adhesive sealant
