Introduction
The Lucky KPCw1 Solar Backsheet represents a significant advancement in photovoltaic (PV) technology, offering unparalleled protection and reliability for solar modules. Designed to withstand extreme environmental conditions, this backsheet is a critical component in ensuring the longevity and efficiency of solar power systems. This article delves into the product’s features, technical specifications, application scenarios, and the company’s commitment to innovation.
Outstanding Environmental Resistance
The Lucky KPCw1 Solar Backsheet is engineered with a PVDF fluoropolymer weather-resistant layer, which provides multiple protective characteristics. This advanced material ensures the backsheet can endure harsh conditions, making it ideal for diverse geographical and climatic environments.
1. UV Protection
The backsheet’s special formulation achieves an impressive over 95% UV blocking rate. This feature is crucial for preventing degradation caused by prolonged exposure to sunlight, which can lead to reduced efficiency and premature failure of solar panels.
2. Temperature Adaptability
Designed to maintain stable performance across a wide temperature range, the KPCw1 backsheet operates effectively from -40°C to 85°C. This adaptability makes it suitable for both extreme cold and high-temperature environments, ensuring consistent performance in various regions.
3. Weather Durability
The backsheet has passed the 3000-hour dual 85 (85°C/85% RH) aging test, demonstrating its ability to withstand prolonged exposure to high humidity and temperature. This rigorous testing ensures the product’s longevity and reliability in real-world conditions.
4. Chemical Resistance
Engineered to resist a broad spectrum of chemicals, the KPCw1 backsheet effectively withstands acids, alkalis, solvents, and salt spray. This chemical resistance is vital for protecting the solar module from environmental contaminants and corrosion, especially in coastal or industrial areas.
5. Mechanical Properties
The backsheet retains >90% tensile strength after damp heat aging, ensuring it maintains its structural integrity under challenging conditions. This mechanical resilience is essential for the backsheet’s role in protecting the internal components of the solar module.


Reliable Bonding System
The Lucky KPCw1 Solar Backsheet features a fluorinated coating cured adhesive layer, which has been rigorously tested to ensure long-term reliability and performance. This bonding system is critical for maintaining the structural integrity of the solar module.
1. Peel Strength
The backsheet demonstrates a peel strength with EVA of >60N/cm, ensuring a secure bond that resists delamination over time. This high peel strength is essential for maintaining the backsheet’s adhesion to the module’s other components.
2. Interface Stability
Thermal aging tests have confirmed the backsheet’s excellent interface stability, which is crucial for maintaining the bond between the backsheet and the solar cells. This stability ensures that the backsheet remains firmly attached, even under extreme temperature fluctuations.
3. Delamination Resistance
The KPCw1 backsheet has passed thermal cycling tests without delamination, demonstrating its ability to withstand repeated temperature changes. This resistance is vital for maintaining the backsheet’s performance in regions with significant temperature variations.
4. UV Aging Test
Withstanding a 200kWh/m² UV accelerated aging test, the backsheet ensures that it can endure prolonged exposure to sunlight without degradation. This test is a critical measure of the backsheet’s durability and performance under real-world conditions.
5. Bond Strength Retention
In humid environments, the backsheet retains >85% bond strength, ensuring that the adhesion remains strong even in high-moisture conditions. This retention is essential for maintaining the backsheet’s effectiveness in coastal or tropical regions.
Strict Quality Control
Baoding Lekai International Ltd., the manufacturer of the Lucky KPCw1 Solar Backsheet, maintains rigorous quality control measures to ensure the product’s reliability and performance. Every batch of the backsheet undergoes comprehensive testing and inspection.
Wide Range of Applications
The Lucky KPCw1 Solar Backsheet is suitable for a variety of applications, making it a versatile solution for different solar power projects.
- Utility-scale solar power plants
- Commercial and industrial distributed projects
- Coastal areas with high humidity
- High-irradiation desert regions
- PV projects in regions with large temperature variations
Its adaptability to different environments ensures that the KPCw1 backsheet can be used in both urban and remote locations, providing reliable performance for a wide range of solar energy applications.
Company Background
Baoding Lekai International Ltd. (English name: Baoding Lekai International Ltd.) is a leading manufacturer and supplier of high-quality solar backsheet materials. The company is committed to optimizing the performance of its products to provide reliable backsheet solutions for the photovoltaic industry.
With a focus on innovation and quality, Baoding Lekai International Ltd. has established itself as a trusted partner for solar power projects worldwide. The company’s R&D center and production facilities are equipped with advanced technology and expertise to ensure that its products meet the highest standards of performance and reliability.
Lucky remains dedicated to advancing PV module technology and offers customers the opportunity to visit its facilities to explore the latest developments in solar energy solutions.
Product Specifications Table
| Feature | Specification |
|---|---|
| UV Blocking Rate | Over 95% |
| Temperature Range | -40°C to 85°C |
| Weather Durability | 3000-hour dual 85 (85°C/85% RH) aging test |
| Chemical Resistance | Acids, alkalis, solvents, salt spray |
| Mechanical Properties | >90% tensile strength retention after damp heat aging |
| Peel Strength with EVA | >60N/cm |
| Interface Stability | Excellent in thermal aging tests |
| Delamination Resistance | No delamination after thermal cycling tests |
| UV Aging Test | 200kWh/m² UV accelerated aging test |
| Bond Strength Retention | >85% in humid environments |
Conclusion
The Lucky KPCw1 Solar Backsheet is a robust and reliable solution for modern solar power systems. Its advanced environmental resistance, reliable bonding system, and strict quality control measures ensure that it meets the demands of diverse applications. Baoding Lekai International Ltd. continues to innovate and provide high-quality products that contribute to the growth and sustainability of the photovoltaic industry.
References
NIST Standards for Photovoltaic Materials
The National Institute of Standards and Technology (NIST) plays a pivotal role in developing standards and guidelines for photovoltaic materials. While specific citations for the Lucky KPCw1 Solar Backsheet were not found due to technical limitations, NIST’s work in the energy sector provides a foundational framework for evaluating the performance and reliability of solar backsheet materials. For more information on NIST’s contributions to energy standards, visit NIST’s Energy Division.
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