The Automotive Seal Strips Manufacturer!
Shandong ChenGuang Automotive Parts Co.,Ltd. was established in 1993 and is one of the most potential automotive parts brand enterprises in Shandong Province. Located in Jiama Ying Industrial Park, the origin of the automobile and parts industry in Wu County, it is adjacent to National Highway340(formerly Provincial Highway318) and 1.6 kilometers from the exit the De-Shang Expressway in Wu County to the east.
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![Automotive Door Seal Strip]()
Automotive Door Seal StripAutomotive door seal strips are indispensable components in vehicle manufacturing and maintenance, mounted along door frames, sashes, and contact edges. -
![Automotive Window Glass Seal Strip]()
Automotive Window Glass Seal StripAutomotive window glass seal strips are essential components in vehicle production and maintenance, installed between window glass and door/window frames. Their primary function is to seal gaps, -
![Automotive Decorative Strip]()
Automotive Decorative StripAutomotive trim strips are key aesthetic and functional components in vehicle manufacturing and customization. Installed on exteriors (e.g., door edges, window frames, body sides) and interiors -
![Automotive Body Seal Strip]()
Automotive Body Seal StripAutomotive body seal strips are critical sealing and protective components in vehicle manufacturing and maintenance. Installed at gaps between body panels (e.g., hood, trunk lid, fenders) and where
Why Choose Us
Our Team
The company has a technical research and development center,with 6 research development personnel, and a labora- tory equipped with 3 full-time experimental personnel.which can independently complete a variety of routine tests, and has become a modern company integrating design and development, research and produc- tion,technical services, and sales.
Production Capacity
The company has more than 300 sets of advanced equipment, such asPDM intelligent online spraying extrusion line, rubber mixing center, rubber and rubber plastic injection molding machine, rotomolding machine, polyurethane casting machine,CNCining center,CNC lathe,CNCmilling machine, large universal hydraulic press, three-dimensional laser cutting machine, electrophoretic spraying line, welding line auxiliary equipment, etc.
Widely used
Facing the world, the company mainly provides products such as rubber (rubber and plastic) sealing strips,rubber and polyurethane damping parts engine suspension parts,nylon injection parts,POM-C/H nylon high molecular, etc.,plastic molding,machining parts,rotomolded parts,rubber tube, sheet metal parts, and battery boxes and other metal cover parts for all kinds of automobiles and engineering machinery related enterprises. The company has estab- lished long-term strategic cooperative relations with than 20 main engine enterprises and exports to dozens of countries and regions in the world.
Our Service
The customized services provided by the company are no longer just about offering products, but aim to provide a "collection" of products, services, support, self-service, and knowledge, and provide customized solutions based on user needs.
Advantages of Automotive Seal Strips
Protects Harsh weather
Rubber seals can withstand excessive heat and high UV and ozone levels. Therefore, Rubber seal strips play an essential role in protecting the sensitive parts of machinery and the crew in a vehicle. On the other hand, the door bottom seal, window rubber seal, and car window seal protect us from extreme hot and cold weather.
Save machine parts and equipment
The main reason for using seal strips in vehicles and large machinery is to protect the device parts and equipment from vibration, collision, friction, and fire.
Helps in long-lasting
As rubber seal strips protect the machines and equipment from harsh environments, collision, vibration, and friction, they undoubtedly maintain the durability of the equipment.
Common Cross-Section Shapes of Automotive Sealing Strips
D-shape – This profile offers excellent elasticity and is most commonly used for car doors and windows. The rounded "D" design compresses smoothly, providing consistent sealing against water and wind.
E-shape – Compact and efficient, the "E" profile is often used for narrow gaps. Its multiple lobes improve sealing efficiency, making it suitable where space is limited but a strong barrier is needed.
U-shape – Perhaps the most versatile profile, the "U" is frequently reinforced with metal for added grip. It easily clips onto body flanges and stays secure during vibration or movement, making it a preferred choice for door frames and edges.
P-shape – Widely applied in trunk and hatchback sealing, the "P" design combines a tubular bulb with a flat base, ensuring reliable compression and weather resistance when the trunk closes.
L / V / J shapes – These specialized profiles are tailored for corners, angled joints, or areas exposed to repeated vibration. Their angled designs allow them to adapt to unique structural challenges without compromising performance.
Oval / Tubular profiles – With hollow, rounded forms, these profiles excel in compression resistance and long-term durability. They are typically used in areas exposed to higher loads or repeated opening and closing.
Golden tip: The right sealing strip profile is not one-size-fits-all. Choosing the correct cross-section depends on factors such as the installation area, compression force, environmental exposure, and sealing requirements. A well-matched profile not only ensures effective sealing but also extends the service life of the vehicle’s components.
Weathering Performance and Surface Treatments
Weather resistance
300h in a sunlight aging tester.
Ozone resistance
50×10⁻⁶ ozone at 38°C, 30% elongation for 70h.
Flex resistance
300 cycles per minute for 500,000 cycles.
Cold resistance
-40°C for 5h with 180° bending, showing no abnormalities.
Use-Cases in Different Industries
Passenger Vehicles
Sealing strips around doors and windows improve comfort by reducing noise and preventing water leaks. For instance, luxury sedans use high-grade silicone seals for enhanced insulation.
Commercial Vehicles
Heavy-duty trucks utilize sealing strips to withstand harsher environments, ensuring safety and durability over long distances.
Electric Vehicles (EVs)
Sealing strips contribute to thermal management, helping maintain internal temperatures and improve energy efficiency.
Specialty Vehicles
Military and emergency vehicles employ specialized sealing solutions for enhanced security and environmental protection.
1. Providing technical consultation.
2. Samples are free.
3. We could customize various products with your brand logo according to your requirements.
4. Your inquiry will be replied within 1 hours during working time,Within 24 hours when rest time.
5. Orders will be produced exactly as request and approved samples.
6. Before shipment,our QC will have inspection to make sure the quality.
7. We always try best to ensure every order to delivery in time.
8. Special packaging according to request.
Packing Details
We will packing by professional export packing,safety against breakage, finally into the wooden cases/ carton/pallet or customized package.
Delivery Details
We can deliver by SEA,air,rail transportation,the China-Europe Railway Express etc. TNT, DHL,UPS, FEDEX, EMS，S.F EXPRESS etc.
FAQ
We're professional automotive seal strips manufacturers and suppliers in China. Please feel free to wholesale automotive seal strips made in China here from our factory. Good service and quality products are available.
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