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EPDM soft and hard composite sealing strip

EPDM soft and hard composite sealing strip is a sealing material made of EPDM rubber (EPDM) and hard materials (such as plastic, metal, etc.). It combines the advantages of both soft and hard materials, with the good elasticity and weather resistance of EPDM rubber and the stability and wear resistance of hard materials. It is suitable for sealing and sound insulation of various doors and windows.

specification

Material: Composite material of EPDM and hard material

Size: Common sizes include width 5mm - 50mm thickness 2mm - 20mm length can be customized as needed

Surface treatment: smooth surface or textured surface to enhance sealing effect

Color: black gray white and other colors are available and can also be customized according to the color of doors and windows

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  • Quality control:

The quality control of EPDM soft and hard composite sealing strips usually includes raw material inspection, production process control, finished product inspection and performance testing. Through strict quality control, ensure that the sealing strips have good elasticity, weather resistance and wear resistance, as well as stable sealing effect.

  • Application scenarios:

EPDM soft and hard composite sealing strips are suitable for sealing and sound insulation of various doors and windows. Common application scenarios include:

1. Home doors and windows: suitable for wooden doors, aluminum alloy doors and windows, plastic steel doors and windows, etc., providing good sealing and sound insulation effects to keep the indoor environment comfortable.

2. Commercial buildings: suitable for door and window sealing in shops, office buildings, hotels and other places, providing sound insulation and heat preservation effects, and improving the comfort of the indoor environment.

3. Industrial buildings: suitable for door and window sealing in factories, workshops and other places, providing wear-resistant, weather-resistant and durable sealing effects, and keeping the indoor environment clean and quiet.

  • Installation method:

1. Clean the installation surface: Make sure the surface of the door and window frame notch is clean, dry, and free of oil and dust.

2. Measurement and cutting: Measure and cut the sealing strip according to actual needs to ensure the appropriate length.

3. Press-in installation: Press the sealing strip into the notch of the door and window frame to ensure that the sealing strip fits tightly with the notch.

  • Notes:

1. During installation, ensure that the sealing strip fits tightly with the notch of the door and window frame to avoid gaps to ensure good sealing effect.

2. The length of the sealing strip should match the length of the notch of the door and window frame to avoid being too long or too short to cause poor sealing effect.

3. Check the use status of the sealing strip regularly. If aging, hardening or damage is found, it should be replaced in time to maintain the sealing effect.

  • Packaging and transportation methods:

- Packaging: Use plastic bags, cartons or wooden boxes for packaging, and provide customized packaging according to customer needs to protect the sealing strip from external environment and physical damage.

- Transportation: Delivery by land, sea or air to ensure that the product is safe and reliable during transportation without damage.

  • FAQ:

1. What is the service life of EPDM soft and hard composite sealing strips?

- A: The service life of the sealing strip depends on factors such as material quality, installation method and use environment. Generally, good quality sealing strips can be used for several years to decades. It is recommended to check regularly and replace them as needed.

2. How to replace the sealing strip after aging or damage?

- A: When the sealing strip is aged, hardened or damaged, it can be replaced by the following steps: remove the original sealing strip, clean the door and window frame, measure and cut the new sealing strip, and install the new sealing strip. Make sure the new sealing strip fits the door and window frame tightly to maintain the sealing effect.

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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Door and window sealing strip series

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The series of rubber sealing strips

Various shapes of sealing strips

The series of automotive sealing strips

The series of soft and hard composite sealing strips

The series of other rubber products