In waterproofing solutions for roofs, basements, and municipal engineering projects, polymer waterproof membranes are undoubtedly the mainstream choice today, with TPO and PVC being the two core materials. However, many homeowners, renovation professionals, and even newcomers to the industry easily confuse the two – both are polymer membranes, both can be hot-air welded, and both are high-performance roofing materials, but their actual materials, lifespans, and applicable scenarios are quite different! Today, Canlon will use simple, popular science language, avoiding obscure academic formulas, to help you understand the essential differences between the two types of roll materials and provide practical selection advice for different usage scenarios.
In recent years, China's construction waterproofing industry has witnessed a transformative shift from traditional asphalt-based materials to advanced polymer materials. Three representative polymer waterproofing membranes—PVC (Polyvinyl Chloride), TPO (Thermoplastic Polyolefin), and HDPE (High-Density Polyethylene)—are becoming the preferred solution for modern construction waterproofing due to their exceptional performance. This article provides an in-depth analysis of the characteristics and applications of these three materials and highlights the innovative achievements of industry leader Canlon in the polymer sector.
On January 16, the No. 1 nuclear island of the Jiangsu Xuwei Nuclear Power Plant in Lianyungang began concrete pouring, marking the start of the main construction phase and initiating my country's transformation of nuclear energy from primarily power generation to diversified supply. The project utilized multiple waterproofing materials from Canlon to construct a robust and reliable waterproofing system. As the first nuclear power unit to commence construction in China at the start of the 15th Five-Year Plan period, the Xuwei project primarily focuses on industrial heating while also generating electricity, with a total investment exceeding 72 billion yuan.
Polymer waterproofing membranes play a critical role in modern construction, with Thermoplastic Polyolefins (TPO) and Polyvinyl Chloride (PVC) being two widely used primary materials. Their long-term performance, particularly weatherability and durability, directly determines the reliability and service life of building envelopes. This article will delve into the impact of environmental factors on the molecular structures of these two materials from a materials science perspective and explore the underlying aging mechanisms and their respective application scenarios.
In the history of modern construction, persistent leakage, akin to a "water curtain cave," has long plagued the industry and end-users. The limitations of traditional waterproofing materials in terms of durability, environmental friendliness, and construction convenience have struggled to meet the higher demands of contemporary buildings for long-term safety, energy efficiency, and sustainability. Today, polymer waterproofing membranes, represented by PVC (Polyvinyl Chloride), TPO (Thermoplastic Polyolefin), and HDPE (High-Density Polyethylene), are leading a technological revolution with their superior performance, becoming the preferred solution for large public buildings, industrial plants, transportation hubs, and green roofs.
On November 6th, the 10th PV & Energy Storage Innovation Conference (PVIC 2025), hosted by PV Industry Network and Energy Storage Industry Network, grandly opened in Hefei, Anhui. At the concurrently held "TOP 50" 2025 PV & Energy Storage Innovation Ranking Release and Awards Ceremony, Canlon New Energy won the "2025 Industrial and Commercial PV Brand Influence Enterprise" award for its outstanding performance in the field of industrial and commercial distributed PV.
On November 5, 2025, the 2025 China International Roofing and Waterproofing Technology Exhibition was grandly held at the Shanghai New International Expo Centre. Under the theme of "Good Houses, Good Waterproofing, Good Future", Canlon made its debut with the theme of "Integration Leading New Quality Empowerment", presenting a feast of comprehensive building waterproofing system solutions with polymer as the core technology to professional audiences at home and abroad. At this exhibition, Canlon was located at booth 201 in Hall N1, attracting keen attention from experts and industry colleagues from home and abroad.
Waterproofing systems are the "lifeline" of underground tunnel projects, directly determining the structural durability and operational safety of the engineering structure. The Qingdao Shaohai Xiyuan Road Underground Tunnel, a key transportation hub connecting the North and South Lake areas of Jiaozhou Shaohai, faced multiple challenges, including soft soil geology, construction across a lake, and complex node handling. Canlon achieved the "no seepage, no leakage" quality target in this waterproofing project through technological innovation and meticulous management, creating a typical example in the field of waterproofing for underground transportation engineering.
On October 13, 2025, the 9th China Steel Structure Association Member Representative Conference and the 2025 China Steel Structure Conference grandly opened in Nanning, Guangxi. The conference was hosted by the China Steel Structure Association, organized by China Construction Second Engineering Bureau Installation Engineering Co., Ltd., Ma'anshan Iron and Steel Co., Ltd., and co-organized by Shanghai Baoye Group Co., Ltd. and China Fifth Metallurgical Group Co., Ltd. At the conference, Liu Yi, Executive Vice President of the China Steel Structure Association, presided over the award ceremony for the China Steel Structure Association's 2025 "Technology Innovation Award." Canlon's "Polymer Membrane Metal Integrated Sandwich Panel" project won this prestigious award for its industry-leading innovation and practicality. Wang Yazhou, General Manager of Canlon's Applied Technology R&D Center, accepted the award on behalf of the winning company.