On December 18, 2025, the Hainan Free Trade Port will officially launch the island-wide customs closure, marking a landmark step in China's opening up to the outside world. The construction of the Hainan Free Trade Port is a major reform and opening-up initiative personally planned, deployed, and promoted by General Secretary Xi Jinping. The official launch of the island-wide customs closure marks a crucial leap for the Hainan Free Trade Port towards its highest level of openness. In the process of contributing to the nation's new development pattern, Canlon has also actively participated, providing high-quality roofing system solutions for the Hainan Free Trade Port.
Since the beginning of the 20th century, SBS (styrene-butadiene-styrene) bitumen-based waterproof membranes have been widely used in waterproofing projects. With the rapid development of the times, they have been continuously improved and evolved to take into account the importance of environmental protection. For a long time, they have remained popular due to their low cost. As a representative of new synthetic polymer waterproof materials, TPO (thermoplastic polyolefin waterproof membrane) has developed rapidly in the European and American markets since its birth in the 1990s. Due to its advantages such as anti-aging, high tensile strength, large elongation, and ability to be applied to damp roofs, it has long occupied the number one position in the North American roofing market. Today, Canlon will take the roofing scenario as an example to analyze the performance comparison of TPO membrane and SBS membrane, two common roofing waterproofing materials.
Recently, Canlon roof siphon rainwater drainage system, with its green and low-carbon attributes and superior performance, empowered a key project—the heavy chemical equipment production base construction project of Yongda Chemical Machinery (Rudong) Co., Ltd. Canlon Roof Siphon Rainwater Drainage System was applied to the roofs of the combined plant and special materials plant in this project. The Canlon technical team participated throughout the process, carried out secondary design refinement of the drawings, supplied materials, and provided on-site construction and installation technical guidance.
The Fengcheng Lidu project is located at No. 68 Fengxiang Avenue, Qingcheng District, Qingyuan City. Developed by Qingyuan Hengyuan Zhaoye Real Estate Development Co., Ltd., the project primarily consists of high-rise residential buildings, supplemented by apartments, villas, and commercial spaces. The surrounding area boasts abundant educational, medical, and commercial resources. The total land area is approximately 230,000 square meters, with a total construction area of approximately 700,000 square meters. The project's green roof drainage system utilizes the Canlon SDR siphon drainage collection system, with on-site construction handled by Canlon's Qingyuan partner, Guangdong Yuhao Housing Repair Co., Ltd.
Recently, Canlon has added another internationally authoritative certification – its TPO/PVC waterproof membrane has successfully passed the product rating accreditation of the Cool Roof Rating Council (CRRC) after three years of outdoor testing, making it one of the few domestic companies to hold certifications for both polymer waterproof materials. This also signifies that Canlon's roofing waterproofing products have reached internationally advanced levels in terms of thermal radiation efficiency and green energy-saving performance, opening new channels for expanding into the global green building market.
In recent years, with the advancement and deployment of carbon peaking and carbon neutrality initiatives, high-performance PVC and TPO polymer waterproof membranes, which offer energy savings and environmental benefits, have experienced rapid growth in China. Due to their superior physical properties, they exhibit exceptionally long-lasting aging resistance when used directly exposed, and have long held the position of "King of Roofing" in the North American market.
The review process for the 2025 "Science and Technology Award for Building Waterproofing Industry - Engineering Technology Award (Jinyu Award - Waterproofing Engineering)" and "Science and Technology Award for Building Waterproofing Industry - Technological Progress Award" has been completed and is now open for public comment. Among them, Canlon won a silver award for engineering technology with its "Jinji Lake Tunnel Main Waterproofing Project" case, once again powerfully demonstrating the excellent quality of the integrated waterproofing system.
We often hear about polyurea waterproof coatings. Everyone says that it is a high-end waterproof material, which is highly praised for its extremely fast curing speed and long life. Among them, "aspartic polyurea" is the most common. What are the components of polyurea? What is the relationship between aspartic polyurea and its similar products? Today, we'll quickly explain it all through a simple science article! Polyurea is a polymer compound composed of urea groups (-NH-CO-NH-) and another functional unit (such as isocyanate). It is a polymer material with high strength, high hardness, high elasticity, high wear resistance, and high chemical resistance. It also possesses excellent chemical properties, such as resistance to acids, alkalis, and solvents. Therefore, it is widely used in various industrial fields, such as coatings, sealants, epoxy flooring, fiberglass, and building waterproofing.