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Door water retaining strip

The door waterproof strip is an important part used for car door sealing, designed to prevent moisture, dust and noise from entering the car through the door gap. It is usually made of soft sealing materials such as rubber or silicone, has good elasticity and weather resistance, and can effectively keep the car dry and quiet.

specification

Material: Common materials include rubber silicone etc. which have good weather resistance and sealing performance.

Density: usually between 0.8 g/cm³ and 1.2 g/cm³ depending on the vehicle model and requirements.

Size: Can be customized according to door size and design to ensure complete coverage of door gaps.

Color: The most common color is black and other colors can also be customized according to the vehicles appearance requirements.

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  • Functional features:

Waterproof: It has good waterproof performance and can effectively prevent rain and car wash water from entering the car.

Dustproof: It can seal the gap of the car door to prevent dust, dirt and other debris from entering the car, keeping the car clean.

Noise reduction: It has a certain sound insulation effect, reduces the transmission of road noise and wind noise, and improves the comfort of the car.

Weather resistance: It can resist ultraviolet rays, high temperature and low temperature, is not easy to age and crack, and maintain a long service life.

  • Quality control:

We strictly follow the ISO 9001 quality management system to ensure the stable and reliable quality of each batch of car door waterproof strips. Our quality inspection process includes:

Appearance inspection: Check whether the surface of the waterproof strip is flat and has no obvious defects or damage.

Dimension measurement: Measure the length, width and thickness of the waterproof strip to ensure that it meets the design requirements.

Material testing: Analyze the chemical composition of the rubber or silicone material used to ensure that the material quality is stable and reliable.

Performance testing: Carry out water tightness testing, weather resistance testing, etc. to verify whether the sealing performance and durability of the waterproof strip meet the standard requirements.

  • Installation method:

Cleaning: Make sure the door surface is clean and dry, free of oil and dust.

Positioning: Place the waterproof strip accurately in the door sealing groove to ensure that the door gap is completely covered.

Fixation: Ensure that the waterproof strip fits well with the door and is fixed in place according to the vehicle design.

  • Precautions:

Regular inspection: Regularly check whether the door waterproof strip is aging, cracking or loosening, and replace it in time if there is any problem.

Cleaning and maintenance: Clean the surface of the waterproof strip regularly and use a special rubber maintenance agent to keep it soft and durable.

Choose the right model: Choose the right waterproof strip model according to the vehicle model and door structure to ensure proper installation.

  • Frequently Asked Questions (FAQ):

1. What is the life of the door waterproof strip?

- Generally, the life of the door waterproof strip is about 2 to 5 years, depending on the use environment and maintenance.

2. Can the waterproof strip effectively prevent rainwater from penetrating?

- Yes, high-quality door waterproof strips can effectively prevent rainwater and car wash water from penetrating into the car and keep the car dry.

3. Can I replace the door waterproof strips by myself?

- Yes, you can generally replace the door waterproof strips by yourself, but it is recommended to operate under the guidance of a professional technician to ensure correct installation.

4. What will happen after the waterproof strips age?

- After the waterproof strips age, they may crack, harden, deform, etc., resulting in a decrease in the sealing effect, and need to be replaced in time.

Sealing Strip Production Process

Raw Material Procurement
The company rigorously selects high-quality suppliers to procure rubber, plastics, and various additives that meet national and international standards, ensuring material quality.
Raw Material Inspection
Advanced equipment and a professional team are employed to comprehensively inspect raw materials, including their physical and chemical properties, ensuring they meet production requirements. Only materials that pass inspection proceed to the production phase.
Compounding and Mixing
Accurate compounding and mixing are conducted according to product formulation ratios. High-efficiency mixing machines ensure thorough blending of raw materials to achieve uniform consistency. The mixed materials undergo a maturation period to ensure material stability.
Extrusion Molding
Maturation-treated mixed materials enter the extrusion molding process. Different extruders and molds are used based on product shapes and specifications. Stringent control of parameters such as temperature, pressure, and speed ensures products meet design requirements in terms of size and appearance.
Vulcanization and Cooling
Products after extrusion molding undergo vulcanization to enhance their physical properties and durability. Vulcanization occurs under high temperature and pressure conditions using vulcanization machines to ensure uniform curing. Post-vulcanization, products undergo cooling to further stabilize performance.
Cutting and Processing
Cooled products enter the cutting and processing stage. Precision cutting and further processing such as edge trimming and hole punching are performed according to specific product requirements. During processing, strict control of dimensions and accuracy ensures products meet design specifications.
Surface Treatment
Processed products undergo surface treatment as required, such as spraying, impregnation, or bonding. Surface treatment enhances product appearance and improves properties such as corrosion resistance, waterproofing, and wear resistance.
Final Inspection
All finished products undergo rigorous final inspection. The company utilizes advanced testing equipment and a professional quality inspection team to comprehensively test dimensions, physical properties, chemical properties, etc. Only products that pass inspection are packaged and ready for shipment; non-conforming products are reworked or scrapped.
Packaging and Storage
Inspected and approved products proceed to packaging. Suitable packaging materials and methods are selected based on product characteristics and customer requirements to ensure products remain undamaged during transportation and storage. After packaging, products are stored in the warehouse awaiting shipment.

Service Commitment

Quality Assurance

Ensure product quality meets standards, with stable and reliable performance.

01

On-Time Delivery

Guarantee orders are delivered on time to meet customer production needs.

02

24/7 After-Sales Support

Provide round-the-clock technical support and consultation services.

03

Customer Satisfaction

Dedicated to achieving 100% customer satisfaction.

04

Integrity Cooperation

Protect customer business interests and intellectual property rights, and establish long-term cooperative relationships.

05

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