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UV/Hydrolysis Resistan Film

HomeFunctional Industrial FilmsUV/Hydrolysis Resistan FilmCY11GU UV Resistance Polyester Film for Solar Cell Backsheet

CY11GU Anti-UV PET Film for Solar Cell Backsheet
CY11GU Anti-UV PET Film for Solar Cell Backsheet

CY11GU UV Resistance Polyester Film for Solar Cell Backsheet

White weather-resistant PET film with good light shielding, dimensional stability, electrical insulation, low UV yellowing, and excellent hydrolysis resistance, mainly used in fluorine-free solar backsheet applications.

PET base film
Solar backsheet
Weather resistance
Electrical insulation

Product Model:

CY11GU

Key Highlights

Heat resistant polyester film lamination compatibility icon
Good lamination compatibility
Stable surface wetting tension on this heat resistant polyester film supports common adhesives and high-temperature lamination processes, helping decisively improve interlayer bonding stability.
Hydrolysis resistance PET film icon
Improved hydrolysis resistance
Expertly addresses severe hydrolysis aging in high-temperature and high-humidity environments, helping backsheets meticulously maintain mechanical and insulation reliability.
UV resistance polyester film anti-yellowing icon
Low UV Yellowing
As a specialized UV resistance polyester film, its performance has been radically improved to thoroughly address the fatal yellowing tendency of PET film under harsh UV radiation.

Technology & Advantages

Through advanced proprietary technology, the CY11GU UV resistance polyester film massively improves material stability under intense damp-heat aging conditions while guaranteeing extremely low UV yellowing performance. It operates flawlessly as a heat resistant polyester film, entirely meeting the rigorous requirements of modern fluorine-free solar backsheet applications.
CY11GU UV resistance polyester film technology

Core Values

Long-term reliability:
Effectively helps film for solar cell backsheet structures robustly withstand damp heat, harsh UV exposure, rapid temperature variation, and punishing long-term outdoor service conditions.
Processing compatibility:
Functions as a reliable uv heat resistant window film base, making it incredibly suitable for common high-speed lamination processes and advanced adhesive systems used in the mass production of backsheet materials.
Electrical safety:
Provides profoundly stable electrical insulation support for the critical protective function of high-voltage photovoltaic backsheets.

Applications

UV resistance polyester film for floating PV systems
Floating PV Modules
High humidity and extreme water vapor environments strictly require stronger hydrolysis resistance capabilities.
Heat resistant polyester film for desert PV arrays
Desert PV Arrays
High UV exposure and violent temperature variation rigidly require a premium UV resistance polyester film for thermal and dimensional stability.
Film for solar cell backsheet on commercial rooftops
Rooftop PV Installations
Decades of long-term outdoor operation demand a stable heat resistant polyester film to ensure unyielding insulation safety and structural reliability.
UV heat resistant window film base for utility scale solar plants
Utility-Scale PV Plants
Perfectly suitable as a film for solar cell backsheet in massive module projects requiring absolute visual consistency, stable supply, and long-term anti-aging material performance.

Technical Specifications

PropertyPropertyUnitIndexIndexIndexIndexIndexTest Method
ThicknessThicknessμm125150250262288GB/T 13542.2-2021
Tensile strengthMDMPa158152149160155GB/T 13542.2-2021
Tensile strengthTDMPa166162158168170GB/T 13542.2-2021
Elongation at breakMD%118122131120118GB/T 13542.2-2021
Elongation at breakTD%9294103112110GB/T 13542.2-2021
Heat shrinkage (150℃, 30min)MD%1.31.21.11.11.1GB/T 13542.2-2021
Heat shrinkage (150℃, 30min)TD%0.20.20.10.10.1GB/T 13542.2-2021
Light transmittanceLight transmittance%12.810.46.91614GB/T 2410--2008
Electrical strength≥Electrical strength≥V/μm8176615957GB/T 1408.1-2016
WVTRWVTRg/(m2.24h)2.82.51.71.61.5GB/T 21529-2008
Wetting TensionWetting TensionmN/m5252525252GB/T 14216-2008
PCT accelerated agingRetention of Elongation to break%3532286058121℃, 100%RH, 2atm, 48h


Remark: The comprehensive parameter table for this UV resistance polyester film is exactly from the original TDS. MD refers to machine direction and TD refers to transverse direction; where the TDS specifies type inspection or delivery inspection items, the original TDS shall strictly prevail.

Packaging & Logistics

Storage Conditions
Store the heat resistant polyester film securely in a clean, dry, and consistently ventilated place to preserve structural properties.
Storage Environment
Keep deliberately away from fire, active heating sources, and continuous direct sunlight prior to module lamination.
Pallet
Sturdy fumigation-free wooden pallets engineered to be securely suitable for demanding export transportation.
Label Information
Each film roll label stringently includes model, batch number, precise thickness, width, net weight, and production date for solar compliance traceability.
Slitting Range
Different exact slit widths can be supplied perfectly according to customer PV laminating equipment and continuous production requirements.
Supply Note
Our regular specifications fundamentally support reliable mass batch supply. Lead time depends completely on order specifications, total quantity, and production schedule.
Packaging of UV resistance polyester film rolls for solar industry

Frequently Asked Questions

Q: What is CY11GU mainly used for?
A: CY11GU is a highly specialized film for solar cell backsheet composites. Due to its advanced thermal stability, it is also highly sought after as a UV heat resistant window film base in architectural and automotive applications.
Q: What are the main technical features of CY11GU?
A: It guarantees unyielding light shielding, strict dimensional stability, flawless electrical insulation, remarkably low UV yellowing, and excellent hydrolysis resistance. It is fundamentally used as a premium UV resistance polyester film in modern fluorine-free solar backsheet applications.
Q: Can samples be securely provided for PV testing?
A: Yes, samples or small evaluation rolls of this heat resistant polyester film can be quickly provided according to specific project requirements for industrial lamination, adhesive laminating, and long-term aging performance validation tests.
Get a Fast Quote & Sample Roll
Connect with our film experts today for custom thickness, roll slitting configurations, and secure material supply chain solutions.

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