How do lubricants protect automotive connector components?

2026-05-12

A standard automobile is equipped with over 700 connector assemblies, supporting thousands of individual connections. For decades, connectors have played a vital role in ensuring the reliable power supply to components such as engines, headlights, brake lights, turn signals, windshield wipers, and entertainment systems.

However, with the rise of the electric vehicle market, new potential points of failure are emerging. For autonomous and electric vehicles, the consequences of such failures extend far beyond something as simple as a malfunctioning radio.

Automotive Connectors Must Be Reliable.

Ranging from short circuits to connection failures, connector malfunction constitutes a significant issue. The consequences can range from minor inconveniences to major repercussions—including product recalls, increased warranty costs, and even serious safety hazards. Consequently, preventing connector failure should be a top priority for design engineers. Vibration, water ingress, fretting corrosion, oxidation, and excessive insertion forces are all factors that can lead to connector failure. Fortunately, these issues can be effectively prevented through the use of specialized electrical Contact Greases.

Whether in the engine, battery, or gearshift; whether in the headlights, windshield wipers, infotainment system, or numerous other components—connectors are crucial for reliably supplying power to these parts. Automotive Electrical Connectors

How do lubricants protect connectors from damage caused by these conditions?

Dielectric Silicone greases function similarly to sealants; they seal metal contacts and form a protective layer. Vibration, in particular, poses a challenge to connectors—not only in automobiles but also in kitchen appliances and washing machines. Such minute movements (which may also be caused by thermal expansion) can abrade the metal surfaces, leading to oxidation. As the oxide layer accumulates and thickens, the resulting oxide film acts as an insulator, increasing the electrical resistance between contacts. This leads to a voltage drop across the terminals and ultimately results in an open circuit, causing power failures or signal loss. Connector grease mitigates this abrasion and isolates the system from the surrounding environment, thereby preventing the formation of oxide layers.

FRTLUBE Connects the Future

● FRTLUBE offers a range of lubricants specifically designed for connectors (the EC series of electrical contact greases) and remains steadfastly committed to R&D to meet the ever-evolving demands of the industry. Electric vehicles are fundamentally reshaping the way connector lubricants are formulated.

● These vehicles operate at higher temperatures, demand longer service lifespans, and feature a greater number of connection points. Furthermore, as technologies—such as home appliances and industrial automation equipment—become increasingly "smart," they require more sensors and connectors to facilitate the seamless transmission of information. All of these trends must be carefully considered when developing lubricants designed to support the next generation of technology.

As a high-tech enterprise with 21 years of deep expertise in the field of specialty lubricants, FRTLUBE is also a key participant in this wave.

● 1. We operate a dedicated, independently constructed manufacturing facility spanning 6,000 square meters, alongside a professional lubrication laboratory. With an annual production capacity exceeding 1,000 tons of specialty greases and lubricants, we hold certifications for both the ISO 9001 Quality Management System and the IATF 16949 Automotive Quality Management System. Furthermore, our entire product portfolio complies with the EU's RoHS and REACH environmental standards, demonstrating our comprehensive qualifications to serve as a Tier 1 supplier to automotive manufacturers, backed by robust quality control capabilities. IATF16949

● 2. Tailored specifically for the new energy vehicle (NEV) sector, we have developed an exclusive product matrix: the CP Series of low-temperature greases for body components. These products are perfectly engineered to meet the demanding requirements for low-temperature noise suppression and long-term lubrication in components such as power liftgates and soft-close doors. Notably, our CP325 model serves as a direct equivalent to Dow Corning EM50L, while the HT551V1 model benchmarks against Klüber GTK055, offering equivalent performance within their respective classes. Furthermore, our EC Series contact greases, SG Series silicone sealants, and PG Series gear noise-dampening greases collectively provide comprehensive coverage for the full spectrum of lubrication needs across all application scenarios within the new energy vehicle industry.

● 3. Compared to international brands, our most significant competitive advantage lies in our specialized, high-end customization capabilities. We are able to rapidly develop customized formulations, conduct rigorous sample testing, and ensure prompt delivery—all tailored to meet the distinct and differentiated requirements of automotive OEMs and component manufacturers. Additionally, we provide on-site technical support and comprehensive lifecycle after-sales services. By doing so, we effectively dismantle the barriers typically associated with international brands regarding customized services and rapid responsiveness; consequently, we have established deep collaborative partnerships with numerous leading manufacturers of NEV components.