China pet film production companies, polyester film manufacturer-Yuxing Film

UV/Hydrolysis Resistan Film

CY28G48 Black Pet Film

It is a black film with good shading, uniform color. Mainly used in the field of solar cell back material. Standard thickness: 100μm. Other thickness can be customized according to customer's specific requirement.

PCT

Shading

Black PET

Uniform color

Solar backsheet

Product Model:

CY28G48

Key Highlights

Black Polyester Film

Black PET film with excellent light-shielding properties and uniform color.

Good shading

Near-zero light transmittance provides complete light blocking for solar applications.

Uniform color

Consistent black color throughout ensures reliable appearance and quality.

Technology & Advantages

CY28G48 is a black polyester film with good light-shielding performance and uniform color. After PCT accelerated aging at 121°C, 100% RH, and 2 atm for 48 hours, the film retains over 50% of its performance.

Core Values

Electrical safety:
Provides stable electrical insulation performance for solar backsheet applications, ensuring reliable protection against leakage and breakdown. High electrical strength and volume resistivity support the protective function of photovoltaic modules.

Long-term reliability:
After PCT accelerated aging test (121°C, 100% RH, 2 atm, 48 hours), the film retains over 50% of its performance. Ensures durable service life for solar backsheet structures in outdoor environments.

Light-Shielding Performance:
The addition of black raw materials provides near-zero light transmittance, ensuring complete light blocking. This protects solar cells from unwanted light exposure and enhances overall module efficiency.

Color Stability:
Uniform black color with stable, fade-resistant performance ensures consistent appearance and long-term reliability. Maintains color integrity throughout the product service life for aesthetic and functional purposes.

Applications

Solar cell

It is a black film with good shading , uniform color. Mainly used in the field of solar cell back material.

Technical Specifications

Item	Item	Unit	Index	Test method
Thickness	Thickness	μm	100	Test method
Thickness tolerance	Thickness tolerance	%	±3	GB/T 13542.2-2021
Tensile strength ≥	MD	MPa	150	GB/T 13542.2-2021
Tensile strength ≥	TD	MPa	150	GB/T 13542.2-2021
Elongation at break ≥	MD	%	100	GB/T 13542.2-2021
Elongation at break ≥	TD	%	100	GB/T 13542.2-2021
Heat shrinkage (150℃, 30min) ≤	MD	%	1.4	GB/T 13542.2-2021
Heat shrinkage (150℃, 30min) ≤	TD	%	0.5	GB/T 13542.2-2021
Light transmittance	Light transmittance	%	～0	GB/T 2410--2008
PCT accelerated aging >	PCT accelerated aging >	%	50	121℃, 100%RH, 2atm, 48h
Note: ① MD = Machine Direction; TD = Transverse Direction. / ② All items are subject to factory inspection. / ③ Performance values for nominal thicknesses other than the recommended/preferred ones are derived via interpolation. / Remark: All items are delivery inspection.

Remark: The parameter table is from the original TDS. MD refers to machine direction and TD refers to transverse direction; inspection type and typical value notes follow the original TDS.