This is a High-Quality Waterproof EPDM Sealing Ring. It’s a regular circular rubber component. It’s made of EPDM. Its hardness is 70±5°A.It has a neat circular contour. Its cross-sectional thickness is uniform. It has a rigid shape (high hardness brings excellent form retention). Its surface has a delicate semi-matte texture. Edges are polished smooth and clean. There are no burrs or micro-defects. A single piece has a compact rubber texture. Multiple pieces stacked won’t collapse or deform. It serves as a high-hardness precision annular accessory tailored for waterproof scenarios.As a core dual-functional 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 high-quality waterproof EPDM sealing ring (hardness 70±5°A) is an integrated sealing + positioning protection component for on-board lenses. Its core function is to construct a stable and high-density waterproof protection system for lens installation interfaces.It leverages the shape stability brought by high hardness. It fits the gap between the lens and the mounting base tightly. It precisely blocks the intrusion of rainwater, high-pressure car wash water, road dust, and moisture. This avoids fogging of optical components and dampness of circuits. It relies on the balance between its rigidity and elasticity. It provides installation and positioning support for the lens. It buffers vibration impacts during vehicle operation. It reduces interface wear.This ensures the imaging accuracy and long-term operational reliability of on-board lenses under complex road conditions and climates. 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)Dual Advantages of Sealing + SupportThe high hardness of 70±5°A endows EPDM with both tight fit and shape stability. It firmly fills micron-level gaps at interfaces. This achieves IP67-level waterproofing. It resists high-pressure water impact and long-term splashing. It also maintains a rigid annular structure. This prevents displacement after installation. It enhances the positioning accuracy of lens interfaces. This performance meets the strict standards of
Automotive Seal and
Lens Barrel Rubber Seals.
2)Exceptional Vibration Damping ToughnessHigh hardness does not sacrifice elasticity. Instead, it forms a combination of "rigid support + elastic buffering". It can absorb intense jolts and high-frequency vibrations during vehicle operation. It reduces hard friction between the lens and the mounting base. It prevents displacement of optical components or loosening of interfaces. It adapts to complex road conditions such as off-roading and high-speed driving. This damping performance meets the dynamic requirements of Automotive Camera Module Sealing Ring and automotive optical components.
3)Stable and Reliable Weather & Temperature ResistanceEPDM material itself withstands a wide temperature range of -45℃~130℃. Combined with the high hardness of 70±5°A, it neither hardens and becomes brittle nor collapses and deforms under high temperatures from summer exposure. It also maintains stability in low-temperature freezing in winter. It consistently maintains its sealing form and protective performance. It adapts to climates across all regions. This environmental adaptability meets the durability requirements of Car Camera Silicone Seals and automotive outdoor sealing components.
4)Outstanding Anti-aging and Wear ResistanceIt exhibits excellent UV and ozone resistance. During long-term outdoor use, there’s no cracking or embrittlement. The high-hardness material has enhanced surface wear resistance. It can withstand slight friction during installation and use. It also tolerates automotive media such as oil stains and car wash cleaners. After contact, there’s no swelling or performance degradation. This durability meets the material standards of Automotive Sealing Solution and integrated automotive sealing systems.
5)Precise and Convenient Installation AdaptabilityThe regular circular contour has no deviations. Dimensions are precisely matched to the standard interfaces of on-board lenses. The high-hardness feature allows the sealing ring to be embedded into the mounting groove easily and accurately. After assembly, there’s no loosening or displacement. The smooth edge treatment prevents scratches on the lens or mounting base surface. This precision is like the manufacturing standards of Precision automotive seal and high-precision automotive optical accessories.
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