Rubber Strip With Full Options

100%  customer satisfaction has quickly established us as a world-class, diverse and progressive organization.

Rubber Extrusion

The quality of the rubber sealing strip made by the rubber extrusion process is better. okin is a professional rubber strip manufacturer. Rubber extrusion seal strips have a wide range of applications. Changing the extrusion to ensure that extruded rubber seals with various cross-sectional shapes. And most importantly, there is no length limit for the rubber extrusion seal. Today, rubber extrusion is very popular in the market.

Rubber Co-Extrusion

The extruded rubber seal strip is durable and easy to install. Because the rubber co-extruded profile is mainly composed of EPDM rubber foam, it is dense and contains unique metal clamps and tongue-shaped buckles. okin is an excellent rubber extrusion supplier. When looking for extruded rubber seal service, you must find a professional.

Sponge Extrusion

The raw material of the sponge extruded sealing strip is EPDM rubber, which is a synthetic rubber. The primary ingredient is ethylene. Its main feature is that it has a low density and high filling and is resistant to aging, corrosion, water vapor, and superheated water. Nowadays, sponge seals have advantages that cannot be ignored. It has good toughness and softness. It is very light and will not add any weight to the transportation of sponge seals.

Plastic Extrusion

A plastic seal strip is a straightforward product that is used daily. For example, some door and window sealing strips, decorative sealing strips on cabinets, etc., are all PVC strips. During production, a plastic extruder produces the plastic sealing strip. The plastic sealing strip is resistant to corrosion, aging, and high and low temperatures. This environmentally friendly product has good anti-seepage, anti-leakage, and water-proof effects. okin rubber strips supplier provides you with great products.

OKIN is a manufacturer specializing in the production of rubber sealing profiles and customized solutions for sealing components.
Our company specializes in the development and production of high-performance plastic extrusion profiles, foam seals, and injection-molded seals.

Our main products include extrusion rubber sealing profiles, co-extrusion rubber sealing profiles,foam sealing strips, EPDM foam sealing strips, rubber edge trims, rubber damping parts, and waterproof materials.Our company specializes in costom rubber parts to meet the diverse needs of our clients. 

With advanced extrusion and molding technology, strict quality control, and competitive pricing, OKIN has become a trusted supplier for global industrial buyers. Whether you are a door and window installer, an automotive parts supplier, or a wholesale distributor of sealing profiles, OKIN offers you superior quality and durability.

Wide Applications of Rubber Sealing Strip

Window Seal & Door Seal Strip

A sealing strip is necessary for sound insulation, wind protection, or dust and insect protection. Whether it is door seal strips or window sealing, they are made of durable rubber or PVC. It can help our customers solve problems quickly.

Car Window Seal & Car Door Seal

A car door rubber seal can be soundproof, leak-proof, and weatherproof, improving driving safety. A durable car window seal provides high protection for your car.

Seal Strip For Rail Vehicle

A marine weather strip with good aging resistance is critical. Seals are rarely replaced frequently. Good oxidation resistance helps to improve the service life of the sealing strip. Even after long-term use, it can ensure a good use effect.

Rubber Extrusion Manufacturing Process

Rubber Extrusion Manufacturing Process
  • Material Preparation: Choose the appropriate rubber material. It is usually a polymer with good elasticity and abrasion resistance, such as styrene-butadiene rubber (NBR), ethylene-propylene rubber (EPDM), etc.
  • Extruder Settings: Adjust parameters such as the extruder’s temperature, pressure, and speed. This ensures that the material receives proper heat and pressure during extrusion.
  • Pressing and Preheating: The rubber material is placed in the hopper of the extruder. Feed through the screw while heating and melting the material in the preheating zone.
  • Die Design And Installation: Design and manufacture the appropriate extrusion die according to the required sealing strip size and shape. Install the die on the extruder, ensuring it is properly adjusted and centered.
  • Extrusion Process: Push the preheated rubber material from the outlet of the extruder into the mold and apply proper pressure. The rubber is passed through a mold to form the desired weatherstrip shape. During extrusion, the rubber passes through a cooling zone to solidify.
  • Cutting And Handling: The extruded weatherstrip is cut to the appropriate length. Subsequent processing steps, such as edge deburring, surface treatment, or processing unique shapes, may be required as needed.
  • Inspection And Quality Control: Extruded weatherstrips are inspected to ensure they meet size, appearance, and performance specifications. The necessary quality control measures are carried out to ensure stable product quality.
  • Packaging And Shipping: Extrude the finished rubber into sealing strips for packaging. Label and sort according to customer needs, ready to ship to customers.

Global Partnerships & Export Markets

With over two decades of expertise in manufacturing rubber sealing strips and custom rubber products, OKIN has built long-term partnerships with leading companies in China market such as FAW Group Corporation (China), Moser Windows & Doors, LPSK Windows & Doors, Shaanxi Automobile Group, Conch Group, and Great Wall Motors. Our main product lines include rubber extrusion profiles, EPDM foam sheets, and high-performance rubber gaskets. The most frequently used products are rubber products,EPDM foam rubber , and high-performance rubber gasket. These products are exported to more than 50 countries and regions, including Europe, North America, South America, Southeast Asia, the Middle East, and Japan. With strict quality control, modern testing, and dependable product performance,OKIN has earned the trust and recognition of customers worldwid.

Certifications & Mission

OKIN adheres to the principle of completely avoiding recycled rubber and insists on using genuine rubber raw materials to provide our clients with high performance products with high rubber content. Like our EPDM raw material suppliers include Dow Chemical, Lion Chemical, ExxonMobil, Mitsui Chemicals, Lanxess, among others.

OKIN’s factories are certified to IATF 16949, ISO 9001, and ISO 14001 and our sealing strip has also passed the VOC emission tested to ensure interior air quality and compliance with OEM requirements in automotive industry.

15+ Years Of sealing products manufacturing expertise

Since our founding in 2001, Okin has been dedicated to supplying high-quality rubber extrusions profiles and plastic sealing strips to various industries. Including automotive seals, door and window seals, waterstops, marine hatch seals, container seals, refrigerator seals, waterproof rubber hoses and other rubber sealing products. 

Why Choose Us

As a China rubber extrusion company, we aim to make customers 100% satisfied. It has allowed us to grow from a one-product company into a progressive organization. And we have achieved world-class, high-quality rubber seal strips for various fields.

Rich Experience

With over 20 years of experience in the rubber and plastic extrusion field, we have developed strong capabilities in product design, process optimization and quality control. Our factory has 7 advanced extrusion production lines, with a daily output of 400,000 meters. We offer stretch correction services, free mold opening, and customized OEM/ODM support. With a skilled workforce team with deep industry experience, we ensure that every production process meets strict quality and precision standards.
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High Quality

We only use natural rubber materials, which have a high rubber content and controllable density, to ensure that the products have long-term elasticity and durability. Our products have high tear strength, excellent tensile performance and low compression permanent deformation. All products have passed VOC testing certification, maintaining stable hardness and flexibility even under extreme conditions. We have passed ISO9001:2008, TS16949 and SGS certifications to ensure consistency in performance from raw materials to finished products.
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One-stop Service

From design to delivery, we provide comprehensive one-stop services. Our project managers are responsible for coordinating the entire process - including technical support, sample testing and post-sales follow-up. We also offer 3M adhesive matching solutions, component integration and extensive compatibility with standard molds (such as Mercedes-Benz GLC260 and other automotive series). We are committed to making your procurement experience simple, efficient and worry-free.
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Diverse Products

We focus on providing multi-component extrusion sealing strips for various fields such as automobiles, construction, machinery and household appliances. Our standard mold library covers various vehicle and window profiles, ensuring rapid delivery and flexible customization.No matter whether you need EPDM, silicone, thermoplastic elastomer (TPE) or polyvinyl chloride (PVC) sealing strips, we can provide tailor-made solutions to meet your project's precise requirements in terms of performance and installation.
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