Superior Properties of PVC
Durability and Weather Resistance
PVC excels in resisting degradation caused by heat, oxygen, and light (particularly ultraviolet radiation), making it a standout material for door and window profiles. Its outstanding resistance to aging and UV exposure makes it an ideal choice for these applications.
Cold Resistance
PVC materials also demonstrate excellent cold resistance, withstanding low-temperature environments and ensuring stable performance for door and window profiles in cold conditions. Data clearly indicates that PVC (polyvinyl chloride) performs better than PP (polypropylene) regarding embrittlement in low-temperature environments.
Thermal Conductivity and Insulation Performance
A comparison of data reveals that PVC offers superior thermal characteristics; specifically, it provides better thermal insulation performance than PP. Although PVC has a slightly different thermal conductivity profile compared to PP, its insulation capabilities are superior. Consequently, PVC holds a significant advantage and is the preferred choice for manufacturing warm-edge spacers.
Flame Retardancy
PVC materials possess excellent flame-retardant properties, providing an extra layer of safety during use. This characteristic is particularly crucial for warm-edge spacers, as it effectively reduces fire risks. Many countries enforce mandatory flame-retardancy standards for building materials, specifying the required ratings for various products. Comparative analysis shows that PVC materials offer superior flame-retardant performance compared to PP materials.
Furthermore, regarding environmental impact, PP materials are prone to causing secondary pollution. In contrast, PVC demonstrates superiority across the board, especially in warm-edge spacer applications. Weizhinai composite warm-edge spacers are manufactured using advanced international equipment and premium imported polymer composites. By employing cold-and-hot co-extrusion technology, the product seamlessly integrates medical-grade modified UPVC polymer composites with stainless steel. With a wall thickness of just 1mm, it offers excellent bendability—ensuring perfect airtightness—while delivering outstanding thermal insulation performance.