Welcome to the website of Hebei Shengyi Plastic Technology Co., Ltd.

23+ YEARS OF MANUFACTURING EXPERIENCE

EPDM sealing strips, silicone sealing strips, PVC/TPE sealing strips; truck/trailer mudguards, PP, PE plastic parts, foam boards, etc.

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23+ YEARS OF MANUFACTURING EXPERIENCE

Customized EPDM sealing solutions for doors, windows, machinery, cabinets, and industrial systems.

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OEM RUBBER/PLASTIC SEAL

It has the functions of shock absorption, waterproof, dustproof, sound insulation, decoration, etc., to improve the comfort of the driving experience and protect the car body. It is mainly used in the door leaf, door frame, engine cover and trunk cover

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OEM TRUCK MUDFLAP

The mudguard can protect the mechanical structure and prevent deposits from entering the mechanical structure of the car; The mudguard can also protect the car paint and prevent stones from splashing through the tire pattern when the car is driving at high speed and damaging the car paint

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OEM Customized Service

With the aim of customer first and quality first, we have established a commodity production system that can meet the needs of customers.

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PRODUCTS

Production of various materials of composite extrusion, rubber and plastic products butt molding, injection molding parts, molded parts, EPDM rubber sealing strips, foaming rubber strips, PVC sealing strips, high temperature resistant silicone strips, various door and window sealing strips and other products

Trailer/Truck mudflap

Standard Products-Door And Window Seal Strip

Other

US heavy-duty truck mud flaps, polypropylene universal mud flaps

Supports brand LOGO spraying, all-weather durability, resists gravel and mud impact, and protects the body and chassis.

Custom Edge PVC Protective Case

Function: According to customer requirements, it can be applied to various positions. Material: PVC

E-type high temperature sealing strip (oven sealing strip)

Use: ● Silicone material has good sealing performance, high temperature resistance, weather resistance, aging resistance, shockproof and waterproof, and can fit all kinds of smooth surface materials ● Can back the tape self-adhesive, better sealing, high temperature resistant adhesive long-term use does not fall off. Environmental protection and safety, good insulation, high temperature resistance, small compression deformation, strong resilience, non-toxic ● Foamed silicone rubber foam evenly, density can be 0.25-0.85g/cm3, Shore hardness 8-30A. Environmentally friendly, non-toxic and odorless, good resilience, good flexibility, no bubbles on the surface, no pores. High strength, long service life, product insulation environmental protection, high and low temperature resistance, compression resistance, acid and alkali resistance, anti-aging, anti-ultraviolet. ● 100% high-quality silicone raw materials, and after strict testing, in line with environmental standards. ● Heat resistance: Silicone rubber has much better heat resistance than ordinary rubber, and can be used almost forever at 150 degrees without performance change; it can be used continuously for 10 hours at 200 degrees; it can also be used for a period of time at 350 degrees. Weather resistance: ordinary rubber is rapidly degraded under the action of ozone generated by corona discharge, while silicone rubber is not affected by ozone. And for a long time under ultraviolet and other climatic conditions, its physical properties only change slightly. ● Silicone sealing strip color variety, according to specifications, color and packaging can be arbitrarily according to customer requirements for processing and production

Rubber ring

Suitable for a variety of sealing forms: static sealing, dynamic sealing Suitable for all kinds of materials, size and groove have been standardized, strong interchangeability

Factory custom dense rubber strip and steel core composite car sealing strip

Role: The automobile sealing strip has the function of filling various gaps between the body components, and has the functions of shock absorption, waterproof, dustproof, sound insulation, decoration, etc., improving the comfort of the driving experience and protecting the car body. It is mainly used in the door leaf, Door frame, front and rear windshield, engine cover and trunk cover.

All Products

OEM Custom Processing Process

Customization process: Confirm product

Provide 2D drawings/3D drawings/samples

Confirm Price

Signing a contract

Production samples

Appropriate sample arrangement for production

Inspection, packaging, delivery

Hebei Shengyi Plastic Technology Co., Ltd.

Our company has three subordinate production enterprises, which are private joint-stock enterprises integrating production and sales.The company has 7 advanced large EPDM microwave vulcanization lines, 20 sets of rubber and plastic extrusion machines, 30 sets of flat vulcanization machines, 15 sets of injection machines, specializing in the production of various materials of composite seals, single extrusion seals, rubber and plastic products butt molding, injection parts,molded parts, standard parts, O-rings, etc. The annual production capacity is more than 6300 tons.At the same time, we have physical and chemical room, measuring room,testing and measuring equipment and more than 30,000 kinds of seal molds, and have formed a one-stop production mode of raw material configuration, mold development and product molding. The company has developed EPDM rubber sealing strips,EPDM foam (sponge) rubber strips, PVC sealing strips, high-temperature resistant(320 ℃ ) silicone strips,various types of automotive door and window sealing strips, various types of rubber pipes, etc.

View Details

2017

Company was established in

40000 ㎡

Floor Area

270 +

Company employees

6300 tons

Annual production capacity

30000 +

Seal strip mould

QUALIFICATION

The company has a standard modern injection molding products, filter assembly plant, professional and technical personnel and advanced production equipment

Quality System Certification

IEC Test

IEC

Proof

OUR ADVANTAGE

Mainly produces all kinds of resin precision injection molding products and PP, PE, TPE, ABSPVCPS and other plastic injection molding products. The filter assembly is suitable for light and heavy duty vehicles, buses, agricultural transport vehicles and other products with stable and reliable quality

Business Scope

Perfect sales system, products covering domestic provinces and cities, overseas exports to Europe and the United States, the Middle East and other countries and regions

Advanced Production Equipment

It has 7 advanced large-scale EPDM microwave vulcanization lines, 20 rubber and plastic extruders, 30 flat vulcanizers and 15 injection molding machines.

Perfect after-sales Service

Products have been well received by domestic and foreign merchants. Our company can also develop, produce and process according to customers' drawings and samples.

NEWS CENTER

The company mainly produces all kinds of resin precision injection molding products and PP, PE, TPE, ABS, PVC, PS and other plastic injection molding products

Understanding the Importance of Door and Window Seals in Enhancing Energy Efficiency

2026-04-19

Door and window seals are essential for preventing air leakage, which can lead to significant energy loss. When these seals are compromised, conditioned air can escape, causing heating and cooling systems to work harder and consume more energy. Consequently, the efficiency of HVAC systems diminishes, leading to higher energy bills and an increased carbon footprint. Therefore, investing in high-qua

Top Benefits of Using Foam Seal Strips in Construction

2026-04-18

Top Benefits of Using Foam Seal Strips in Construction Table of Contents Introduction to Foam Seal Strips What are Foam Seal Strips? Top Benefits of Foam Seal Strips 1. Enhanced Energy Efficiency 2. Effective Noise Reduction 3. Superior Moisture Control 4. Significant Cost Savings 5. Easy Installation Process

Understanding EPDM Foam Sealing Strips: Applications and Benefits

2026-04-17

EPDM foam sealing strips are made from ethylene propylene diene monomer (EPDM), a synthetic rubber known for its excellent weather resistance, flexibility, and durability. These sealing strips are widely used to provide effective sealing in various applications, including automotive, construction, and manufacturing. Their unique properties make them highly suitable for environments that experience

Why D Shaped Rubber Seal Strips Are Essential for Weatherproofing

2026-04-16

Introduction to D Shaped Rubber Seal Strips and Their Importance in Weatherproofing D shaped rubber seal strips are a vital component in the realm of weatherproofing. Their unique design and versatile applications make them essential for ensuring that homes and businesses remain shielded from the ravages of weather. In this extensive guide, we will explore the reasons why D shaped rubber seal stri

Enterprise E-mail

max@shengyirubber.com

+86-18133866645

Hebei Shengyi Plastic Technology Co., Ltd.

The company specializes in producing various materials such as composite extrusion, monomer extrusion, rubber plastic product docking molding, injection molded parts, molded parts, EPDM rubber sealing strips, foam rubber strips, PVC sealing strips, high-temperature resistant silicone strips, and various door and window sealing strips.

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