This is a sealing ring. It has an overall black annular structure. Its surface is smooth, with no burrs. Its edges are rounded and regular.Its thickness is uniform. It has a naturally flowing curvature. It shows excellent shape consistency. It’s crafted from EPDM via peroxide vulcanization. Its hardness is 50°A. Its elasticity and toughness are intuitively perceptible. It has a slight flexibility. It allows for minor deformation with rapid recovery. The ring is robust and durable. It embodies high-performance characteristics tailored for automotive applications.As a core flexible sealing component for automotive optical systems, it is an integral part of
Automotive Sealing Assemblie and
Automotive Sealing Solution. It meets the precision standards of
Precision automotive seal and
Car Camera Silicone Seals.
Product Features
1.Function:This durable waterproof sealing ring—made of EPDM (peroxide vulcanization, 50°A hardness)—serves as the core flexible waterproof protection component for on-board lenses. Its primary role is to construct an elastic sealing barrier + buffering protection system for lens installation interfaces.The peroxide-optimized EPDM material fits the gaps between the on-board lens and mounting base tightly. It precisely blocks the intrusion of rainwater, high-pressure car wash water, road moisture, and dust. This prevents fogging of optical lenses, contamination of imaging components, and moisture-induced short circuits. It leverages its 50°A soft elasticity. It buffers jolts, vibrations, and high-frequency impacts during vehicle operation. It reduces hard friction at the lens interface.This ensures the imaging clarity and long-term operational stability of on-board lenses under rainy conditions, wading scenarios, and complex road environments. Its dual protective function matches the requirements of
Precision Seals for Car Lenses and
Automotive Camera Module Sealing Ring in automotive optical systems.
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2.Performance Characteristics
1)Elastic Sealing + Process-Enhanced Waterproof ReliabilityThe 50°A low hardness endows EPDM with exceptional soft fit. It enables adaptive filling of micron-level interface gaps. Combined with the dense molecular structure from peroxide vulcanization, it achieves IP67-level waterproof protection. It resists high-pressure car wash water, prolonged rainy exposure, and road mud intrusion. It eliminates water leakage risks. The peroxide process enhances sealing stability. It prevents long-term performance degradation. This meets the strict standards of
Automotive Seal and
Lens Barrel Rubber Seals.
2)Flexible Buffering for Automotive Vibration ScenariosThe core advantage of 50°A soft elasticity lies in efficiently absorbing jolts, vibrations, and high-frequency impacts during vehicle operation. It reduces hard collisions between the lens and mounting base. It prevents displacement of optical components or interface loosening. It is suitable for urban commuting, off-roading, and other diverse road conditions. It protects the lens's precision structure from damage. This damping performance meets the dynamic requirements of Automotive Camera Module Sealing Ring and automotive optical components.
3)Weather & Aging Resistance for All-Climate AdaptabilityEPDM inherently offers excellent weather resistance. It is further enhanced by the peroxide process's anti-aging properties. It withstands a wide temperature range of -40℃~120℃. It maintains elasticity without hardening, embrittling, or becoming sticky/deformed under extreme conditions. This includes high temperatures from summer vehicle exposure and low winter outdoor temperatures. It has outstanding UV and ozone resistance. It avoids cracking or embrittlement during long-term outdoor use. It ensures an extended service life. This environmental adaptability meets the durability requirements of Car Camera Silicone Seals and automotive outdoor sealing components.
4)Medium & Wear Resistance for Automotive EnvironmentsPeroxide vulcanization improves EPDM's density. It enables resistance to common automotive media such as oil stains and car wash cleaners. There’s no swelling or performance attenuation after contact. Despite its softness, the surface exhibits superior wear resistance compared to ordinary flexible seals. It withstands minor friction during installation and use to prevent damage. This meets the material standards of Automotive Sealing Solution and integrated automotive sealing systems.
5)Precise Adaptation + Easy AssemblyIt has a regular annular contour and high dimensional precision. It matches standard on-board lens installation interfaces perfectly. The 50°A softness allows for easy insertion into grooves. No forceful pressing is needed. After fitting, there’s no displacement or missing seals. Its smooth, burr-free edges prevent scratches on the lens or mounting base during assembly. This precision is like the manufacturing standards of Precision automotive seal and high-precision automotive optical accessories.
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