Corporate Strength & Manufacturing Prowess

Zhejiang Lisu Composite Materials Co., Ltd (hereinafter referred to as "Zhejiang Lisu") has independently developed a specialized UV-C-resistant material for water tanks, which has taken the lead among similar domestic products in obtaining the CQC 4706 certification from the China Quality Certification Center (CQC) and successfully received the certification certificate. This achievement not only fills the gap in authoritative certification within the domestic market in this field but also marks a milestone breakthrough for China in the key technology area of specialized water tank materials, particularly in resisting short-wave ultraviolet (UV-C) aging.

UV-C, referring to short-wave ultraviolet light with a wavelength of 200-280 nanometers, possesses strong sterilizing capabilities but also causes severe degradation and aging in many materials. Water storage and supply components widely used in household appliances (such as humidifiers and water dispensers), medical equipment, and air purification systems are prone to brittleness, discoloration, and performance degradation when exposed to such environments over time. This can lead to shortened water tank lifespan, potential leaching risks, or compromised water quality safety. Therefore, developing specialized materials capable of withstanding prolonged and stable exposure to UV-C radiation has become a core challenge in enhancing the quality, safety, and reliability of related products.

The UV-C-resistant plastic offers properties such as resistance to UV-C radiation, prevention of yellowing and embrittlement, and weather stability. Its core applications span four major industries: healthcare and public health (e.g., sterilization equipment, water disinfection systems), home appliances and consumer electronics (e.g., various disinfection devices, sterilization modules in white goods), food and beverage industries (e.g., packaging and filling lines, food sterilization equipment), and specialized fields such as laboratories, pharmaceuticals, and aquaculture—meeting material requirements for UV-C sterilization scenarios.

The material certified by Zhejiang Lisu directly addresses this industry challenge. The CQC 4706 certification series is an authoritative voluntary certification for the safety of materials used in household and similar electrical appliances. Its testing standards are stringent, requiring materials to maintain excellent mechanical properties, safety performance, and hygiene performance after specific UV-C aging tests. Obtaining this certification signifies that Zhejiang Lisu's material has gained endorsement and recognition from a national authoritative body for its aging resistance, long-term usage safety, and environmental health benefits.