All Product Categories

Lip seal

Lip seal is a rubber strip used for sealing doors and windows. Its cross section is lip-shaped and has good sealing performance. It is installed at the notch of the door and window frame to prevent air, water vapor and noise from penetrating into the room through the gap of the door and window, thus improving the indoor sound insulation and heat preservation effect.

specification

Material: EPDM rubber silicone and other weather-resistant and aging-resistant materials

Size: Common sizes include width 5mm - 30mm thickness 2mm - 10mm 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

Product Catalog
Related Products
  • Quality control:

Quality control of lip seals usually includes raw material inspection, production process control, finished product inspection and performance testing. Through strict quality control, ensure that the seal has good weather resistance, aging resistance and sealing.

  • Applicable scenarios:

Lip seals are suitable for various doors and windows, such as wooden doors, aluminum alloy doors and windows, plastic steel doors and windows, etc. It is widely used in places such as homes, commercial buildings and industrial buildings to keep the indoor environment dry, quiet and comfortable.

  • Installation method:

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

2. Measure and cut: Measure and cut the seal according to actual needs to ensure the appropriate length.

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

  • Notes:

1. During installation, ensure that the seal fits tightly with the notch of the door and window frame to avoid gaps to ensure a 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 poor sealing effect due to excessive length or shortness.

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 method:

Packaging: Plastic bags, cartons or wooden boxes are used for packaging. Customized packaging is provided according to customer needs to protect the sealing strip from external environment and physical damage.

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

  • Frequently Asked Questions (FAQ):

1. How to clean and maintain the lip sealing strip?

- Answer: You can wipe the surface of the sealing strip regularly with clean water and mild detergent to ensure that it is clean. Avoid using detergents containing acidic or corrosive substances to avoid damaging the surface of the sealing strip. At the same time, check the use status of the sealing strip regularly. If aging or damage is found, replace it in time to maintain the sealing effect.

2. How to replace the sealing strip after aging?

- Answer: When the seal is aged, hardened or damaged, it can be replaced by the following steps:

1. Remove the original seal from the notch of the door and window frame using a flat-head screwdriver or other tool.

2. Clean the notch surface of the door and window frame to ensure that the surface is clean, dry, free of oil and dust.

3. Measure and cut the new seal to ensure the appropriate length.

4. Press the new seal into the notch of the door and window frame to ensure that the seal fits tightly with the notch.

3. Will the installation of the seal affect the opening and closing of the door and window?

- Answer: A properly installed seal will not affect the normal opening and closing of the door and window, but a seal that is too long or improperly installed may cause the door and window to be loose or difficult to close. Therefore, it is necessary to ensure that the seal is of appropriate length and installed correctly during installation.

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

case studies

Contact Us

You can contact us through the following four methods. We will respond promptly upon receiving your inquiry!

Call Us

Send Email

Message Form

Add WeChat or WhatsApp

Phone

WeChat

Door and window sealing strip series

The series of container lid sealing strips

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