In the modern automotive manufacturing and LED lighting industries, the sealing and reinforcement of the wiring harness at the rear of the lamp head has always been a key concern for technicians. High quality adhesive sealing materials not only determine the appearance and aesthetics of lamp head products, but also directly affect the long-term stability and safety of the products. This article will start from practical cases and analyze in detail the technical requirements, application process, testing standards, and our recommended high-performance sealant – Elaplus SIPC 2150 white sealant – for sealing and reinforcing the wire harness at the tail of the lamp head. It will help engineers and technicians better grasp the key points of construction and achieve high-quality sealing and reinforcement effects.
1、 Project background and sealing requirements
In the tail area of the lamp head, due to the dense arrangement of electrical wiring harnesses and long-term exposure to complex environments such as temperature, humidity, and oil pollution, sealing and reinforcement work is particularly critical. In traditional craftsmanship, improper sealing often leads to the intrusion of water vapor and dust, and even causes problems such as circuit short circuits, accelerated aging, and decreased performance of lighting fixtures. Therefore, the sealant selected for this case must meet the following strict requirements:
Adhesive force requirement: The final test tensile force must be greater than 30N to ensure that the sealing layer will not peel off due to external forces during actual use.
Aging resistance test: After passing the double 85 test for 5000H, the product ensures long-term stable operation in high temperature environments.
Color requirement: The product should appear transparent or white to meet the appearance requirements and coordinate with the car lights and interior style.
These technical requirements ensure the excellent performance of the sealant in various extreme environments, thereby effectively improving the durability and safety of the entire vehicle.
2、 Product recommendation – Elaplus SIPC 2150 white sealant
In practical applications, we recommend using Elaplus SIPC 2150 white sealant, which is a neutral alcohol free adhesive sealant with many advantages:
Sealing and reinforcement of the wiring harness at the tail of the lamp head
Sealing reinforcement of the wiring harness at the tail of the lamp head
Excellent mechanical performance
SIPC 2150 has outstanding adhesive strength, and its final test tensile force far exceeds the requirement of 30N, providing a strong reinforcement effect for the tail wire harness of the lamp head. At the same time, the double 85 test for 5000H showed that it still maintains stable performance under high temperature conditions, ensuring long-term operation without faults.
Wide material adaptability
The product shows good adhesion and sealing performance to a variety of substrates, including PC, PA plastic, concrete, wood, felt, EVA foam and metal (iron, aluminum, stainless steel). This diversity enables it to achieve ideal results in sealing applications for different products, especially suitable for sealing treatment of automotive lamp heads and other electronic products.
Environmentally friendly low odor, low white mist design
SIPC 2150 adopts a low odor and low white mist formula, which not only improves the working environment during construction, but also maintains high transparency during curing, meets appearance design requirements, and reduces interference with subsequent processes.
High temperature and oil resistance performance
This sealant is not only resistant to high temperatures and can adapt to a wide temperature range of -60 ℃ to 260 ℃, but also performs well in media such as engine oil and transformer oil, ensuring that it does not fail under harsh conditions such as automotive engines and high temperature environments.
Acid alkali and chemical solvent resistance
In practical applications, the lamp head harness may come into contact with acids, bases, and other chemical solvents. SIPC 2150, with its excellent chemical resistance, ensures that the sealing layer is not corroded in harsh chemical environments, thereby extending the product’s service life.
Excellent insulation and protection performance
This product not only has excellent insulation performance, but also has moisture-proof, dust-proof, anti corona, and seismic buffering effects, providing comprehensive physical and electrical protection for the tail wire harness of the lamp head.
Long term aging resistance
SIPC 2150 has undergone rigorous aging resistance testing and has a service life of up to 20-30 years. Whether in outdoor environments or long-term working conditions, it can maintain excellent bonding and sealing effects, and is not easily aged or yellowed.
Elaplus SIPC 2150 white sealant is an ideal choice for sealing reinforcement in harsh environments due to its excellent adhesion, outstanding aging resistance, wide material adaptability, and multiple protective properties. Faced with increasingly complex product demands and market competition, enterprises should focus on technological upgrades and product innovation, and achieve dual improvement in product quality and safety performance by introducing high-performance sealing materials.
In the future, with the continuous development of automotive lighting technology and electronic product sealing technology, sealing reinforcement materials will show more intelligent, environmentally friendly, and high-performance development trends. We look forward to collaborating with more technical elites and enterprises to explore new areas of sealing technology and provide better and more stable solutions for the industry.
Tags: Silicone sealant · Bottom sealing of lamp head · Thermal conductive sealing of bulb bottom
