CPCW1 Solar Backsheet

Superior Weather Resistance for Diverse Climates

The CPCw1 backsheet’s weather-resistant layer utilizes a high-fluorine-content fluorinated coating cured film, delivering outstanding UV resistance to effectively mitigate aging caused by prolonged sun exposure. Additionally, its exceptional thermal stability ensures structural integrity under extreme temperatures, preventing cracking or delamination due to thermal expansion and contraction. Moreover, the backsheet maintains robust mechanical properties in humid, hot, or freeze-thaw conditions, guaranteeing long-term reliability.

Robust Chemical Protection for Extended Module Lifespan

PV modules in outdoor environments may face chemical corrosion from acid rain, salt spray, and industrial pollutants. Thanks to the inert properties of the fluorinated coating, the CPCw1 backsheet exhibits strong resistance to acids, alkalis, solvents, and salt spray. This makes it particularly suitable for corrosive environments such as coastal and industrial areas, significantly reducing the risk of performance degradation due to chemical exposure.

Stable Base Material for Long-Term Durability

The CPCw1 backsheet uses a specially formulated damp-heat resistant PET base material. After rigorous 2,090 hours of dual 85 (85°C/85% RH) aging tests, the backsheet retains excellent flexibility with no signs of embrittlement or cracking. This ensures superior mechanical strength even in high-temperature, high-humidity conditions, preventing module failure caused by material degradation.

Excellent Adhesion for Enhanced Encapsulation Reliability

The CPCw1’s adhesive layer is also formed by fluorinated coating curing, ensuring outstanding compatibility with EVA encapsulants and forming a stable, reliable bonding interface. This structure not only provides long-term thermal stability but also effectively withstands localized high-temperature impacts caused by hot spots. It meets UV aging requirements exceeding 200 kWh/m², eliminating delamination risks during long-term operation.

Applications

The CPCw1 solar backsheet is suitable for various PV modules, particularly for distributed power stations, ground-mounted power plants, and PV projects in high-humidity, high-salt-spray, and other demanding environments. Its superior overall performance ensures lasting protection, helping PV systems achieve higher energy yields and longer service life.

As a core product of ’s PV material series, the CPCw1 backsheet has become a preferred choice for many PV manufacturers due to its reliable material technology and strict quality control. We are committed to continuous innovation, providing more efficient and durable material solutions for global clean energy development.