Features
Why Choose Chambroad?
We Have The Best Solutions for Your Business
Chambroad, founded in 1991, has developed from a vocational school subsidiary into a diversified industrial group focusing on high-performance materials, advanced chemicals, intelligent manufacturing, and integrated services. With over 11,000 employees and operations in more than 50 countries, the company ranked 254th among China’s Top 500 Enterprises in 2025, achieving revenue of 110.8 billion yuan.
Driven by innovation, Chambroad has established multiple R&D bases and collaboration centers, supported by a strong research team and a portfolio of over 2,000 patents. It actively promotes the integration of industry, academia, and research, accelerating the commercialization of new technologies while fostering talent through global university partnerships.
Committed to sustainable development, Chambroad continues to advance green transformation, renewable energy use, and ESG practices, aiming to become a world-class enterprise with long-term sustainable growth.
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Frequently Asked Question
Do you have any question?
IIR rubber combines ultra-low gas permeability with excellent chemical inertness, preventing drug adsorption, leaching, or oxidation. Its superior resealability after needle puncture ensures multi-dose vial integrity—critical for vaccines and biologics. Chambroad's medical-grade compounds comply with USP Class VI and EU pharmacopeia standards.
While EPDM offers excellent weather resistance, IIR rubber provides significantly lower gas permeability—up to 10x better than many alternatives—making it the preferred choice for applications demanding absolute air or moisture barriers, such as tire inner liners, pharmaceutical closures, and vacuum seals.
Yes. Our ISCC PLUS certified IIR rubber is produced using pyrolysis oil from end-of-life tires, creating a closed-loop "tire-to-tire" circular economy. This allows customers to achieve >80% sustainable content in finished products—without compromising the air-tightness, chemical resistance, or dimensional stability that define premium IIR rubber performance.
Key sectors include pharmaceuticals (vial stoppers, syringe plungers), automotive (tire inner liners, fuel system seals), industrial manufacturing (chemical-resistant gaskets, diaphragms), and construction (waterproofing membranes). Chambroad tailors IIR rubber compounds to each sector's unique regulatory and performance demands.
Absolutely. Our R&D team—backed by 1,100+ specialists and 5 national research platforms—offers bespoke formulation services. Whether you need enhanced heat resistance, faster cure kinetics, or specific regulatory certifications, we co-develop IIR rubber solutions aligned with your performance and compliance targets.
Our production systems are ISO 9001, ISO 14001, and ISCC PLUS certified. Medical-grade compounds undergo rigorous testing for extractables, leachables, and biocompatibility. Full technical data sheets, COAs, and regulatory support documentation are provided with every IIR rubber shipment.
Our updates and blog posts
Transforming Modern Infrastructure with High-Performance Asphalt Solutions
High-Performance Asphalt Solutions for Infrastructure | Chambroad
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High-Performance Polypropylene Resin Solutions | Chambroad
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High-Performance Butyl Rubber Solutions for Global Industry