Blue Polyester Film | Colored PET Film Release Liner Substrate

Release Film

CY20L Polyester Film for Photoelectric Display

CY20L Blue Polyester Film for Tape & Release Liner

Blue transparent polyester film with excellent mechanical properties, heat resistance, uniform color, and non-fading performance, mainly used in adhesive tape and release film substrate applications.

Tape

Heat resistance

Blue transparent PET

Photoelectric display

Release film substrate

Product Model:

CY20L

Key Highlights

Heat resistance

Maintains strict dimensional stability and controlled shrinkage under severe high-temperature processing conditions.

Special Color

Features a distinctive blue transparent appearance expertly formulated for layer identification and decorative applications.

Technology & Advantages

CY20L achieves its vibrant tint by utilizing premium colored raw materials during the extrusion process, seamlessly ensuring excellent color uniformity. A specialized manufacturing process is rigorously applied to provide this blue polyester film with remarkably strong color retention and total resistance to fading over extended periods.

CY20L Blue polyester film manufacturing technology

Core Values

Application Fit:
Primarily used in high-grade adhesive tape and PET film release liner substrate applications. It consistently provides reliable performance for colored tape and precise die-cutting release liner requirements.

Core Performance:
Combines impressive heat resistance, uniform color, and non-fading performance. Ensures reliably stable processing and end-use durability for complex tape and colored PET film applications.

Excellent Mechanical Properties:
Provides profoundly robust mechanical strength and necessary flexibility. This blue PET film smoothly supports downstream processing such as adhesive lamination, silicone coating, and related converting operations with consistent performance.

Applications

Adhesive Tape

Acts perfectly as the foundational blue PET film base layer for specialized colored adhesive tapes.

Release Film

Utilized heavily as a highly visible PET film release liner substrate for precise silicone coating.

Protection

Employed as a high-strength colored protective film layer for delicate electronic products and displays.

Technical Specifications

Properties	Unit	Standard	Typical Value
Thickness	μm	GB/T 13542.2-2021	50 / 75 / 100 / 125 / 150 / 175 / 188
Thickness Tolerance	%	GB/T 13542.2-2021	±3 / ±3 / ±3 / ±3 / ±3 / ±3 / ±4
Tensile Strength - MD	MPa	GB/T 13542.2-2021	≥150 / ≥150 / ≥150 / ≥150 / ≥145 / ≥145 / ≥145
Tensile Strength - TD	MPa	GB/T 13542.2-2021	≥180 / ≥175 / ≥170 / ≥170 / ≥170 / ≥170 / ≥170
Elongation at Break - MD	%	GB/T 13542.2-2021	≥100 / ≥110 / ≥110 / ≥110 / ≥120 / ≥120 / ≥120
Elongation at Break - TD	%	GB/T 13542.2-2021	≥80 / ≥85 / ≥90 / ≥90 / ≥100 / ≥100 / ≥100
Heat Shrinkage @150°C, 15min - MD	%	TDS	≤1.5
Heat Shrinkage @150°C, 15min - TD	%	TDS	≤0.5
Wetting Tension	mN/m	GB/T 14216-2008	≥52

Remark: The physical parameters above are rigorously extracted from the original CY20L blue polyester film 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 prevail.

Packaging & Logistics

Storage Conditions

Store the blue PET film reliably in a clean, dry, and thoroughly ventilated place to preserve surface properties.

Storage Environment

Keep diligently away from fire, active heating sources, and direct sunlight to ensure absolute color fade resistance.

Pallet

Sturdy fumigation-free wooden pallets engineered to be highly suitable for secure export transportation.

Label Information

Each film roll label strictly includes model, batch number, precise thickness, width, net weight, and production date for rigid traceability.

Slitting Range

Different precise slit widths can be supplied efficiently according to customer tape laminating equipment and production requirements.

Supply Note

Our regular material specifications completely support mass batch supply. Lead time fundamentally depends on order specifications, total quantity, and schedule.

Frequently Asked Questions

Q: What is CY20L mainly used for?

A: It is prominently used in manufacturing high-strength colored adhesive tapes, acting as a reliable PET film release liner substrate, and serving as a protective colored PET film in industrial packaging applications.

Q: What are the main features of this blue polyester film?

A: It guarantees absolutely excellent mechanical properties, strict heat resistance, a uniform blue color, and completely non-fading performance during long-term storage.

Q: Can other specialized thicknesses be customized?

A: Yes. While we supply an array of standard thicknesses from 50μm to 188μm, other specific thicknesses can be reliably customized strictly according to the customer's technical requirements.

Q: Can evaluation sample rolls be easily provided for testing?

A: Yes, samples or small testing rolls can be rapidly provided according to exact project requirements for critical adhesive coating, tape lamination, and peeling performance validation tests.

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