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    Weizhong Company adheres to the business philosophy of "Quality First, Customer Supreme, Honest and Trustworthy, and Active Innovation".

Building Sealing Strips
We specialize in the production of high-performance building seals, dedicated to providing superior waterproofing, sound insulation, thermal insulation, and dustproofing solutions for modern buildings. Our products utilize high-quality EPDM and silicone rubber, and are precision-engineered and manufactured to ensure durable sealing performance and an exceptionally long service life in all weather conditions. Whether used in curtain wall projects, window and door systems, or prefabricated buildings, our seals are a reliable choice for maintaining building quality and energy efficiency.
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Architectural Seal Strip, EPDM Rubber Gasket for Building Curtain Wall and Window


Product Overview

We specialize in the production of high-performance building seals, dedicated to providing superior waterproofing, sound insulation, thermal insulation, and dustproofing solutions for modern buildings. Our products utilize high-quality EPDM and silicone rubber, and are precision-engineered and manufactured to ensure durable sealing performance and an exceptionally long service life in all weather conditions. Whether used in curtain wall projects, window and door systems, or prefabricated buildings, our seals are a reliable choice for maintaining building quality and energy efficiency.


Technical Specifications

Parameter / Property

EPDM

VMQ (Silicone Rubber)

CR (Neoprene)

TPE (Thermoplastic Elastomer)

Notes

Common Hardness

40 - 80 Shore A

40 - 80 Shore A

40 - 80 Shore A

40 - 80 Shore A


Operating Temperature

-50°C to +150°C

-60°C to +230°C

-40°C to +120°C

-50°C to +135°C

Varies by specific material grade

Tensile Strength

≥ 8 MPa

≥ 8 MPa

≥ 8 MPa

≥ 8 MPa

Minimum requirement

Elongation at Break

≥ 300%

≥ 300%

≥ 300%

≥ 300%

Minimum requirement

Compression Set

≤ 25%

≤ 25%

≤ 25%

Varies

Test condition: 70°C × 22h

Common Colors

Black, Gray, White

Black, Gray, White

Black, Gray, White

Black, Gray, White

Custom colors available

Applicable Standards

GB/T, ISO, ASTM

GB/T, ISO, ASTM

GB/T, ISO, ASTM

GB/T, ISO, ASTM

Compliant with relevant standards



Key Product Highlights

1. Excellent Weather Resistance: Made from high-quality EPDM and other materials, our seals offer excellent resistance to UV rays, ozone, and high and low temperatures (-50°C to +150°C). They resist deformation and cracking in harsh environments, ensuring a long-lasting seal.

2. Comprehensive Sealing: Our exceptional elasticity and compression recovery effectively prevent water, dust, noise, and air infiltration, enhancing the building's waterproofing, sound insulation, and thermal insulation performance, contributing to the goal of green and energy-efficient construction. 3. Convenient Installation: We offer a variety of installation options, including snap-on, adhesive-backed, and embedded designs, to accommodate the joint requirements of various structures, significantly improving construction efficiency and reducing installation costs.

4. Wide Application Compatibility: We offer a wide range of sealing strips for building doors and windows, curtain wall joints, and precast concrete structures, meeting the sealing needs of various building components, including commercial buildings, residential projects, and industrial plants.

5. Environmentally Friendly and Safe: Our products comply with international environmental standards, are non-toxic and odorless, and some series are RoHS and REACH certified, ensuring safety.


Main Applications

Curtain Wall Systems: Sealing and waterproofing unit panel joints and sashes.

Door and Window Systems: Sealing casement windows, sliding windows, aluminum doors, and wooden doors.

Precast Concrete Components: Sealing wall panel joints and expansion joints.

Skylights and Skylights: Sealing steel and glass joints.

Interior Partitions: Sealing and finishing partition wall and decorative joints.


Why Choose Us?

Professional R&D Team: We have an independent material R&D and product testing center, providing customized solutions based on your project needs. Strict Quality Control: From raw material storage to finished product shipment, we implement comprehensive quality control throughout the entire process to ensure stable and reliable product performance.

Extensive Project Experience: Our products have been successfully applied in numerous landmark buildings and large-scale engineering projects both domestically and internationally, earning widespread customer trust.

Complete Service: We provide comprehensive services, from technical consultation and sample provision to installation guidance, to ensure your project is a success.


Call to Action

Looking for a reliable sealing solution for your building project? Feel free to contact us for free samples and detailed product information. Our technical team will provide professional selection advice and customized services.

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