The Sealing 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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Building Expansion Joint Rubber StripBuilding expansion joint rubber strips are key sealing elements for construction structures, installed in expansion joints gaps designed to absorb structural movement from temperature changes,
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Automotive Door Seal StripAutomotive door seal strips are indispensable components in vehicle manufacturing and maintenance, mounted along door frames, sashes, and contact edges.
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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,
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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
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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
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Mechanical O RingMechanical O-rings are versatile sealing components widely used in machinery, engineering, and industrial equipment. Designed as circular elastomeric rings, they are installed in grooves to seal
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Oil Resistant Mechanical GasketOil-resistant mechanical gaskets are specialized sealing components for oil-handling machinery and industrial systems. Installed between mating surfaces (e.g., flanges, covers, joints), they block
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Mechanical Waterproof Rubber StripMechanical waterproof rubber strips are specialized sealing components for machinery and industrial equipment. Installed at gaps of mechanical enclosures, door covers, or component joints, their core
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Mechanical Insulating Rubber StripMechanical insulating rubber strips are specialized dielectric components for electrical and mechanical equipment. Installed between conductive parts (e.g., metal casings, terminals, moving
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.
Our Company Provides The Following Products
Building Expansion Joint Rubber Strip
Building expansion joint rubber strips are key sealing elements for construction structures, installed in expansion joints gaps designed to absorb structural movement from temperature changes, settlement, or seismic activity.
Advantages of Rubber Seal Strips




Weather Resistance: Rubber seal strips exhibit exceptional resistance to weathering, UV rays, and harsh environmental conditions, making them the ideal choice for outdoor applications in construction, automotive, and architectural projects, ensuring long-lasting sealing performance.
Sound Insulation: Thanks to their elasticity and density, rubber seal strips provide effective sound insulation, reducing noise levels in various applications, from automobiles to industrial machinery, ensuring a quieter and more comfortable environment.
Thermal Insulation: Rubber seal strips offer excellent thermal insulation properties, helping to maintain consistent temperatures in refrigeration units, HVAC systems, and residential doors and windows, contributing to energy efficiency and cost savings.
Waterproofing: The waterproof nature of rubber seal strips makes them indispensable for sealing applications in wet environments, such as marine equipment, bathrooms, and outdoor structures, ensuring a watertight and leak-free seal.
Shock Absorption: Their cushioning and shock-absorbing capabilities make rubber seal strips invaluable for protecting delicate components and equipment from damage due to vibrations and impacts, vital in industries like transportation and electronics.
Chemical Resistance: These strips are resistant to a wide range of chemicals and solvents, making them suitable for use in environments where exposure to corrosive substances is common, such as laboratories, chemical processing plants, and manufacturing facilities.
Customization: Rubber seal strips can be easily customized to fit specific profiles and dimensions, ensuring a precise and secure seal in various sealing applications.
Durability: Their exceptional durability ensures a longer service life, reducing maintenance costs, and contributing to long-term performance in critical applications.
Comparing Types: Finding The Right Rubber Sealing Strip For You
EPDM Rubber Strips
EPDM (Ethylene Propylene Diene Monomer) is noted for its excellent resistance to weathering, UV rays, and temperature variations. It’s ideal for outdoor applications, such as sealing windows and vehicle parts.
Silicone Rubber Strips
Silicone is renowned for its high-temperature resistance and flexibility, commonly used in high-tech industries requiring longevity and reliability, such as aerospace and electronics.
Nitrile Butadiene Rubber (NBR) Strips
NBR is highly resistant to oils and fuels, making it perfect for automotive and industrial applications requiring oil resistance.
Neoprene Rubber Strips
Known for its versatility and balance between resistance to weathering and oils, neoprene is used in various applications including marine seals and gaskets.
Automotive Door Seal Strip
Automotive door seal strips are indispensable components in vehicle manufacturing and maintenance, mounted along door frames, sashes, and contact edges.
Features of Auto Rubber Seals

Weather Resistance
Auto rubber seals are designed to withstand exposure to various weather conditions. Including rain, snow, and UV radiation. The materials used are often resistant to degradation caused by sunlight and temperature extremes.
Waterproofing
One of the primary functions of rubber seals is to create a waterproof barrier. They prevent water from entering the vehicle's interior. They can protect the occupants and the vehicle's interior components from water damage.


Noise Reduction
Automotive rubber strips contribute to reducing noise levels inside the vehicle by creating a tight seal. It can minimize the penetration of external sounds. This enhances the overall comfort and driving experience.
Flexibility And Elasticity
Rubber seals are chosen for their flexibility and elasticity. These properties allow the seals to conform to the contours of the vehicle's opening. Ensures a tight and effective seal even when the vehicle is moving and vibrating.

Automobile Sealing Strip Production Process
Extrusion
Rubber sealing strips for automobiles are extruded by a cold-feed extruder, and the extrusion heads include single heads, compound (double compound and multi compound) heads and shear heads. Among them, the screw aspect ratio of the microwave vulcanization extruder is generally 16, and the screw aspect ratio of the shear head vulcanization extruder is greater than 20.
Vulcanization
The semi-finished rubber sealing strip extruded by the cold feed extruder is vulcanized by a continuous vulcanization process. The vulcanization methods include microwave vulcanization, shear head vulcanization, salt bath vulcanization and fluidized bed vulcanization (also known as vulcanized bed vulcanization, the heating medium is medium 0.1 -0.2 mm glass beads, the temperature is 250°C), hot air vulcanization (only for silicone rubber sealing strips) and high-speed hot air vulcanization (air velocity is 120km h-1, temperature is 400°C). High-speed hot air vulcanization due to slow heat transfer and high energy consumption of heating equipment (3 times that of microwave vulcanization heating equipment, 5 times that of shear head vulcanization equipment).

Clean the surface: Use a clean cloth to wipe down the surface where the sealing strip will be installed. Make sure there is no dust, dirt, or debris that could interfere with the adhesion.
Measure and cut: Measure the length of the area where the sealing strip will be installed and cut the strip to the appropriate length.
Apply adhesive (if necessary): If the sealing strip does not come with adhesive backing, apply a small amount of adhesive to the strip. Follow the manufacturer’s instructions for the type of adhesive to use and how much to apply.
Install the sealing strip: Carefully align the sealing strip with the edge of the surface and press it firmly in place. Make sure the strip evenly and firmly adheres to the surface.
Test the seal
Close the door or window to test the seal. Ensure no gaps or leaks where air, water, or dust could enter the vehicle.
Trim any excess
If there is any excess sealing strip, carefully trim it with scissors or a utility knife.
Repeat as necessary
Repeat the process for other areas where sealing strips must be installed.

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 sealing strips manufacturers and suppliers in China. Please feel free to wholesale sealing strips made in China here from our factory. Good service and quality products are available.
