Are you looking for the best car door sealant factories in China? If so, you’re in the right place. In this article, we’ll compare some of the top manufacturers, such as Dongguan Hongju Silicone Rubber Products Co., Ltd., Ningbo Shenlian Rubber Sealing Elements Co., Ltd., and Hebei Shida Seal Group, to help you make an informed decision. Let’s dive into what sets these industry leaders apart.

Car Door Weatherstrips | Car Rubber Door Seals

Product Details: Car Door Weatherstrips are designed and manufactured by Hebei Shida Seal Group. These weatherstrips are attached to the vehicle door using self-adhesive tape or retainers (plastic clips) and serve as the first sealing barrier between the vehicle door and body. They prevent outside elements such as water, air, dust, and noise from entering the vehicle cabin. The main material used is EPDM sponge rubber with a polyurethane coating, which offers good compression set, high tensile strength, and excellent resistance to weathering, ozone, UV, water, steam, and high and low temperatures. These weatherstrips are used in conjunction with opening trim weatherstrips

(secondary door seals) for enhanced performance.

Pros:
– Excellent resistance to weathering, ozone, UV, water, steam, and high and low te…
– Good compression set and high tensile strength.
– Effective in preventing water, air, dust, and noise from entering the vehicle ca…
– Can be extruded into various shapes and sizes.

Cons:
– No specific cons mentioned in the provided source.

Automotive Weatherstrips China Manufacturer

Car Door Inner and Outer Belt Weatherstrip from China

Product Details: The Car Door Inner and Outer Belt Weatherstrip from China is manufactured by Hebei Shida Seal Group Co., Ltd., an ISO/TS16949 certified company. The product is categorized under Automotive Rubber and is used for door seal applications. Key details include: – Place of Origin: China – Brand name: SHIDA – Payment Terms: T/T, Western Union – Production method and Shipping/Lead Time: Negotiable – Unit Size and Weight: 1 kg – HS code: 4016. The company specializes in custom rubber extrusions, profiles, gaskets, weatherstrips, seals, and molded parts, serving various industries including automotive, construction, and electronics.

Pros:
– Customizable to suit customer-specific requirements
– High-quality rubber sealing systems designed to prevent water, air, dust, and no…
– Contribution to multiple industries beyond automotive, such as construction and…
– ISO/TS16949 certified, ensuring high standards of quality
– Wide range of applications including inner and outer belt weatherstrips, door be…

Cons:
– Limited specific technical details available on the product page
– No detailed information on the material composition or temperature range
– Negotiable production method and shipping/lead time may cause uncertainty for bu…

Factory Price For Car Silicone Sealant – SV628 Acetic …

Car Door Weather Seal Strip

Product Details: The car door weather seal strip is typically made from EPDM sponge rubber or solid EPDM. It is designed to seal the gap between the vehicle’s doors and frame, preventing outside elements like rain, snow, wind, and noise from entering the cabin. The product is available in various lengths, often sold by the foot, and can be customized for different vehicle models. It may feature a Peel-N-Stick adhesive backing for easy installation or include metal clips for enhanced grip.

Pros:
– Provides effective sealing against water, wind, and noise
– Easy installation with Peel-N-Stick adhesive backing
– Durable and long-lasting with high temperature resistance
– Customizable for different vehicle models and applications
– Prevents debris and moisture from collecting behind the seal

Cons:
– May expose users to chemicals known to cause health issues (as per some product…
– Installation may require precise measurement and cutting
– Not suitable for 90-degree applications without potential leakage
– Price can vary significantly based on size, material, and vehicle model

Rubber door 2025 seals for cars

China door rubber seal strip manufacturer

Product Details: The door rubber seal strip is made from durable EPDM foam rubber and includes internal aluminum metal clips, a gripping tongue, and a strong grip. The material is EPDM solid rubber and sponge rubber, with a temperature range of -40°C to +120°C. It features good aging resistance, comprehensive physical-mechanical resistance, and corrosion resistance. The seal strip is highly flexible, meets ISO standards, and has excellent elasticity. It is convenient to install and suitable for various applications including car doors, RV compartments, boat hatches, door seals, storage containers, toolboxes, and decorative trim.

Pros:
– Provides effective noise reduction, waterproofing, dustproofing, soundproofing,…
– Enhances the leakproofness of doors, making them close more tightly and reducing…
– Good aging resistance, lasting over 10 years.
– Excellent flexibility and elasticity, meeting ISO standards.
– Convenient installation.
– Strong protection against heat, extreme weather, corrosion, and cold resistance.

Cons:
– No specific cons mentioned in the product description.

Custom Car Door Rubber Seal Strip Auto Door Seals

Product Details: Custom car door rubber seal strips are designed to prevent water, wind, and noise from entering the passenger compartment of a vehicle. These seals are typically made from high-quality rubber, such as EPDM or silicone, and are installed around doors, windows, and other openings. They come in various shapes, including D-shape, U-shape, and T-shape, and may feature self-adhesive backing or metal clips for secure installation. These seals provide excellent resistance to extreme temperature changes, UV rays, and other environmental factors.

Pros:
– Provides a tight seal to keep moisture, dirt, and noise out of the car
– Excellent resistance to extreme temperature changes and UV rays
– Available in various shapes and sizes to fit different car models
– Improves car insulation and reduces noise levels
– Easy to install with self-adhesive backing or metal clips

Cons:
– May not be suitable for 90-degree applications without proper adjustment
– Requires periodic inspection and replacement to maintain effectiveness
– Can be affected by chemical exposure or heavy wear and tear

should i use the china wall gasket when sealing intake?

Product Details: China’s third-generation semiconductors are made from wide-band-gap materials such as silicon carbide (SiC) and gallium nitride (GaN). These chips are used in power devices, electric vehicles, power grids, and telecom base stations. They offer higher energy efficiency, reduced size, and the ability to operate in high-temperature, frequency, and voltage environments. Additionally, China has developed a third-generation superconducting quantum computer named ‘Origin Wukong,’ which features a 72-qubit superconducting quantum chip and enhances operational efficiency significantly[2][4][5].

Pros:
– Higher energy efficiency
– Reduced size compared to traditional silicon-based chips
– Ability to operate in high-temperature, frequency, and voltage environments
– Robust global demand in sectors like power grids, electric vehicles, and telecom…
– Enhanced operational efficiency in quantum computing

Cons:
– China still lags behind Western companies in core technologies for third-generat…
– Dependence on foreign firms for some technologies, such as the joint venture wit…
– Significant gap compared to other leading global quantum computing players

Automotive Rubber Seals – China Supplier, Wholesale

Product Details: EPDM rubber seals and gaskets are made from ethylene propylene diene monomer, a synthetic rubber known for its durability and versatility. They are available in various thicknesses (1/32 inch to over 1 inch), hardness ranges (40 to 90 Shore A), and temperatures (-40°C to +302°F). EPDM seals are used in automotive (door seals, window seals, engine components), industrial (water system O-rings, hoses, gaskets), construction (roofing, sealant), and HVAC applications (grommets, tubing, gaskets). They adhere well to metals and offer excellent resistance to steam, UV, ozone, and weathering.

Pros:
– Excellent resistance to sunlight, ozone, oxygen, aging, acids, alkalis, water, a…
– Good tensile strength (500-2500 PSI) and high elasticity (300-600% elongation).
– Good abrasion resistance and anti-vibration capabilities.
– Excellent electrical insulation and adhesion to metals.
– Steam resistant and functions well in high temperatures.
– Flexible and resilient, making them suitable for various sealing applications.

Cons:
– Poor resistance to petroleum-based fluids, solvents, and hydrocarbon oils.
– Limited compatibility with certain chemicals like ketones and bituminous materia…
– Not flame resistant.
– Not recommended for food applications due to lack of FDA compliance in all grade…
– Fair tear resistance compared to other rubbers like SBR.

Comparison Table

Frequently Asked Questions (FAQs)

Frequently Asked Questions About Car Door Sealant Factories in China

What materials are commonly used by car door sealant factories in China?

Car door sealant factories in China typically use a variety of materials, including rubber, foam, and plastic. Rubber is the most common, often a combination of natural and synthetic rubber compounds, which offers durability and flexibility. Foam seals, made from polyurethane and polyethylene, are lightweight and provide excellent insulation. Plastic seals, often made from polypropylene and polyethylene, are lightweight and durable.

How do Chinese factories manufacture car door seals?

The manufacturing process involves several steps. First, the material is chosen and mixed with ingredients like fillers, plasticizers, and stabilizers to create the desired compound. The material is then cut to the desired shape and size, heated, and molded into the final form. The seals are tested for durability and performance before they are ready for installation on car doors.

What certifications should I look for in a Chinese car door seal factory?

When selecting a car door seal factory in China, look for certifications like ISO/TS 16949, which is a quality management standard specifically for the automotive industry. This certification ensures that the factory adheres to strict quality and safety standards, providing you with reliable and high-quality products.

Can Chinese car door seal factories provide customized products?

Yes, many Chinese car door seal factories offer customized products. They can design, develop, and manufacture rubber sealing systems to suit your specific requirements. These factories often have advanced machines and expertise in mixing, extruding, and molding rubber to meet various customer needs.

What is the typical lead time and payment process for ordering car door seals from Chinese factories?

The lead time and payment process can vary depending on the factory. Generally, you can expect negotiable lead times and payment options such as T/T (Telegraphic Transfer) or Western Union. Some factories may also offer flexible minimum order quantities and shipping times, which can be discussed and agreed upon during the ordering process.