In the modern automotive manufacturing process, the stability and reliability of automotive electronic systems play a crucial role in the overall performance of the vehicle. Especially in the application of electronic lock systems, the safety and durability of wiring harnesses are one of the core elements to ensure the normal operation of automobiles. In this field, Elaplus’ high-performance potting adhesive products have achieved significant results in the application of automotive electronic components, especially in the potting protection of electronic lock wiring harnesses. This article will provide a detailed introduction to the solution provided by Yilian for the sealing of automotive electronic lock wire harnesses and the recommended product used – SIPC 9400.
Background and Challenges
With the acceleration of automotive electronicization, electronic lock wiring harness, as an important component of automotive electronic systems, has increasingly strict performance requirements. The electronic lock harness not only needs to withstand harsh working environments, but also must ensure that there are no electrical faults, circuit damage, or short circuits caused by external environmental changes during long-term use.
One of the biggest challenges for the encapsulation protection of electronic lock wiring harnesses is selecting suitable adhesive sealing materials. The specific requirements are as follows:
▶ Material compatibility: Electronic lock wiring harnesses are usually composed of PVC wiring harnesses and PA66+30% GF (reinforced polyamide) materials. How to choose the appropriate sealant for these two materials and ensure good adhesion between the materials is the key to this project.
▶ Hardness requirement: The hardness of the cured sealant should be moderate, neither too hard to cause brittle cracking nor too soft to affect the protective effect.
▶ Pull test requirements: After the adhesive is cured, it must be ensured that the outer skin of the wire harness is not damaged during the pull test to meet the durability and safety standards of the automotive industry.
▶ Durability and environmental adaptability: Wiring harnesses are often exposed to harsh environments such as high temperature, low temperature, moisture, and vibration. Encapsulation materials need to have good resistance to cold and hot alternation, aging resistance, and electrical insulation performance.
In response to the above needs, Yilian recommended SIPC 9400, a high-performance potting material, for the project based on market feedback and technical requirements.
SIPC 9400 Product Introduction
RTV SIPC 9400 condensation type adhesive sealing silicone rubber is a two-component condensation type room temperature vulcanized silicone rubber. Rapid curing at room temperature, releasing small molecules of ethanol without corrosion to the material. Used in conjunction with a two-component dispensing machine. After curing, it forms a soft elastic body with excellent resistance to cold and hot alternation, aging resistance, and electrical insulation performance, as well as good moisture resistance, earthquake resistance, corona resistance, and leakage resistance. This product does not require the use of other primers and can bond most materials such as metal, plastic, ceramic, and glass. For bonding special materials such as PP and PE, specific primers need to be used. Flame or plasma treatment can also be applied to the surface of the bonded material as needed to improve bonding performance.
Product Features
▶ Dehydration type room temperature rapid curing
▶ Self leveling has good filling ability
▶ Dual component 1:1 volume ratio
▶ Allow for large mixing ratio errors
▶ Good resistance to heat and cold alternation
▶ Good adhesion to most substrates
▶ Excellent electrical insulation
▶ Compliant with ROHS, halogen-free, and REACH certifications
The SIPC 9400 solution provided by Elaplus for electronic lock wire harness sealing has achieved significant results in the field of automotive electronic components due to its excellent adhesion, elasticity, durability, and environmental adaptability. The application of SIPC 9400 not only solves customers’ difficulties in bonding and protection, but also enhances the safety and reliability of the product. In the future, Yilian will continue to be committed to providing more high-performance adhesive materials for the automotive electronics industry, helping to promote technological innovation and development in the automotive industry.
Tags: Automotive Electronic Lock Wire Harness Encapsulation · Electronic Lock Encapsulation · Wire Harness Encapsulation
