Quality Silicone Rubber Seal & EPDM Rubber Seal factory

In order to better meet market demand, we, Xunzhi Building Materials, recently adjusted the product specifications of EPDM sealing strips and added three common strip models, further enriching the product system and providing customers with more choices. Among the newly added models, there is an EPDM door and window sealing strip suitable for narrow-edge doors and windows. The cross-sectional size is smaller and can adapt to the sealing requirements of new energy-saving doors and windows. After installation, it does not affect the opening and closing flexibility of doors and windows. The other is a large-section EPDM waterproof sealing strip, which enhances the thickness of the sealing lip and improves the waterproof performance of building doors and windows in rainy areas. There is also a cold-resistant model designed for low-temperature areas. It uses a special formula and can still maintain good elasticity at -40℃. It is suitable for sealing doors and windows in the cold northern regions. These three new models have undergone rigorous performance tests and meet relevant industry standards. After listing, they have attracted the attention of many customers. The rich product specifications can meet the needs of different scenarios. If you want to know the specific model information, you can consult Xunzhi Building Materials.

In order to provide customers with better services, we, Xunzhi Building Materials, have improved the after-sales system of EPDM sealing strips, set up a special after-sales consultation hotline and technical service team, and are committed to solving common problems in the use of strips. The after-sales team is composed of technicians with many years of experience and can respond to customer inquiries quickly. In response to the problem of poor sealing after installation of EPDM door and window strips reported by customers, the team will guide customers through videos to adjust the installation position or replace products of appropriate specifications; for the aging problem of EPDM waterproof sealing strips during use, professional maintenance suggestions and replacement cycle references will be provided. We have also compiled a "Strip Use and Maintenance Manual", which details the installation methods, daily maintenance and common troubleshooting of different types of strips, which customers can receive for free. The perfect after-sales system makes customers more worry-free in the process of using our products, and also enhances customers' trust in us. If you encounter problems during use, please consult the after-sales team of Xunzhi Building Materials

Selecting the right rubber seal is critical for ensuring long-term sealing effectiveness. In our latest blog post, our engineering team shares insights on the differences between PVC, EPDM, and silicone seals — and how to choose the best material based on temperature, compression, and application. Whether you’re building a high-rise or designing a vehicle, this guide will help you make informed decisions backed by decades of manufacturing expertise.

We are proud to announce the successful shipment of our EPDM and silicone rubber sealing strips to several key partners in Brazil and Chile. As demand grows across South America, Shenzhen Xunzhi continues to provide customized sealing solutions that meet international standards. This expansion marks another milestone in our mission to deliver premium rubber seal products to clients worldwide.

Shenzhen Xunzhi Building Materials Industrial Co., Ltd. has recently launched a new line of weather-resistant rubber seals designed to perform in extreme environments. Tested for high UV exposure, heavy rainfall, and temperature fluctuations, these seals are ideal for curtain walls, doors, and windows in coastal and high-altitude regions. Our R&D team continues to push material boundaries, ensuring maximum durability and sealing performance for global construction projects.

Cooperation time: 2020/4 Cooperation content: silicone rubber sealing strips, double-sided stickers, foam strips Product applications: doors, windows, glass curtain walls, roofs Delivery cycle: 10 days In April 2020, when Mr. Zhuang, the person in charge of the Hong Kong AU TAU construction unit, was looking for curtain wall strip manufacturers on the Internet, he saw our Shenzhen Xunzhi information. After learning that we have provided strip products to Hong Kong Sun Hung Kai Properties, Hong Kong Henderson Land Development and other companies, and that our products meet British and American standards, and strictly implement ISO9001 quality system certification, he called our person in charge to learn about the cooperation on door and window sealing strips.

Cooperation time: 2021/3 Cooperation content: silicone rubber sealing strips, double-sided stickers, foam strips Product application: doors, windows, glass curtain walls, roofs Delivery cycle: 15 days In March 2021, Mr. Ye, the person in charge of the construction unit of Qibao Street, Hong Kong, was looking for curtain wall strip manufacturers on the Internet. He saw our Shenzhen Xunzhi information. After learning that we have provided strip products to Hong Kong Sun Hung Kai Properties, Hong Kong Henderson Land Development and other companies, and that our products meet British and American standards, and strictly implement ISO9001 quality system certification, he called our person in charge to learn about the cooperation on door and window sealing strips.

Cooperation time: 2019/7 Cooperation content: silicone rubber sealing strips, double-sided stickers, foam strips Product applications: doors, windows, glass curtain walls, roofs Delivery cycle: 25 days In July 2019, Mr. Zhou, the person in charge of the construction unit of Wuhu Street, Hong Kong, was looking for curtain wall strip manufacturers on the Internet and saw our Shenzhen Xunzhi information. After learning that we have provided strip products to Hong Kong Sun Hung Kai Properties, Hong Kong Henderson Land Development and other companies, and that our products meet British and American standards, and strictly implement ISO9001 quality system certification, he called our person in charge to learn about the cooperation on door and window sealing strips.

Cooperation time: 2019/7 Cooperation content: silicone rubber sealing strips, double-sided stickers, foam strips Product applications: doors, windows, glass curtain walls, roofs Delivery cycle: 25 days In July 2019, Mr. Zhou, the person in charge of the construction unit of Wuhu Street, Hong Kong, was looking for curtain wall strip manufacturers on the Internet and saw our Shenzhen Xunzhi information. After learning that we have provided strip products to Hong Kong Sun Hung Kai Properties, Hong Kong Henderson Land Development and other companies, and that our products meet British and American standards, and strictly implement ISO9001 quality system certification, he called our person in charge to learn about the cooperation on door and window sealing strips.

Cooperation time: 2021/6 Cooperation content: silicone rubber sealing strips, double-sided stickers, foam strips Product applications: doors, windows, glass curtain walls, roofs Delivery cycle: 15 days In June 2021, Mr. Peng, the person in charge of the construction unit of Shek Kok Road, Hong Kong, was looking for curtain wall strip manufacturers on the Internet. He saw the information of our Shenzhen Xunzhi. After learning that we have provided strip products to Hong Kong Sun Hung Kai Properties, Hong Kong Henderson Land Development and other companies, and that our products meet British and American standards, and strictly implement ISO9001 quality system certification, he called our person in charge to learn about the cooperation on door and window sealing strips.