Transparent PET Film Release Liner Base | OCA Optical Adhesive film Manufacturer-Yuxing Film

Release Film

CY20DR Transparent PET Base Film for OCA Release Film

A transparent polyester film with good appearance, high cleanliness, low surface roughness, and good temperature resistance. The product model is CY20DR, with TDS-listed thicknesses of 38μm, 50μm, 75μm, 100μm, and 125μm, for OCA optical adhesive applications.

Low roughness

Transparent PET

High cleanliness

OCA optical adhesive

Release film base film

Product Model:

CY20DR

Key Highlights

High cleanliness

Extreme high cleanliness rigorously ensures a completely defect-free surface, critical for precision OCA optical adhesive release film applications.

Low surface roughness

Meticulously controlled low surface roughness elegantly provides a smooth, uniform surface for incredibly consistent silicone or non-silicone release performance.

Temperature resistance base film for OCA icon

Good temperature resistance

Excellent thermal resistance solidly supports stable dimensional performance during intensive thermal curing in OCA processing.

Technology & Advantages

High-end base films for optical clear adhesives structurally require an immaculate transparent appearance, absolute high cleanliness, microscopic low surface roughness, and robust temperature resistance. The CY20DR series is explicitly engineered as a supreme transparent PET film substrate designed exclusively for critical OCA release film applications.

CY20DR Transparent PET film release liner technology

Core Values

Application Fit:
Primarily utilized in advanced OCA optical adhesive applications as an indispensable PET film release liner base. It strictly fulfills the necessity for high cleanliness, low roughness, and temperature stability required for reliable downstream die-cutting performance.

Good Performance:
Features excellent visual appearance, high optical cleanliness, incredibly low surface roughness, and good temperature resistance. It consistently provides highly reliable substrate performance for rigorous OCA release film silicone coating processes.

Applications

OCA Optical Adhesive

Utilized primarily as the indispensable transparent PET film base for high-end OCA optical adhesive release liners in touch panel assembly.

Release Film Base

Employed flawlessly as a high-cleanliness PET film release liner substrate in demanding silicone coating structures.

Technical Specifications

Performance Indicators	Unit	Testing Standards	Parameter values (by thickness: 38 / 50 / 75 / 100 / 125 μm)
Thickness	μm	GB/T 13542.2-2021	38 / 50 / 75 / 100 / 125
Thickness Tolerance	%	GB/T 13542.2-2021	±2 / ±2 / ±2 / ±2 / ±2
Tensile Strength - MD	MPa	GB/T 13542.2-2021	≥165 / ≥165 / ≥160 / ≥155 / ≥150
Tensile Strength - TD	MPa	GB/T 13542.2-2021	≥180 / ≥180 / ≥175 / ≥170 / ≥165
Elongation at Break - MD	%	GB/T 13542.2-2021	≥140 / ≥145 / ≥150 / ≥155 / ≥160
Elongation at Break - TD	%	GB/T 13542.2-2021	≥100 / ≥105 / ≥110 / ≥115 / ≥120
Dimensional Stability @150°C, 30min - MD	%	GB/T 13542.2-2021	≤2.0 / ≤2.0 / ≤2.0 / ≤1.5 / ≤1.5
Dimensional Stability @150°C, 30min - TD	%	GB/T 13542.2-2021	≤0.5 / ≤0.5 / ≤0.5 / ≤0.5 / ≤0.5
Transmittance	%	ASTM D1003	≥87 / ≥87 / ≥87 / ≥87 / ≥87
Haze	%	ASTM D1003	≤4 / ≤4 / ≤5 / ≤5 / ≤5
Wetting Tension	%	GB/T 13542.2-2021	≥52 / ≥52 / ≥52 / ≥52 / ≥52

Remark: The technical parameters above are fully extracted from the original CY20DR transparent PET film TDS. MD refers to machine direction and TD refers to transverse direction. All items are rigorously checked delivery inspection items. Values for non-preferred nominal thicknesses of this release film base are obtained firmly by interpolation.

Packaging & Logistics

Storage Conditions

Store the highly sensitive OCA optical adhesive base securely in a strictly clean, dry, and ventilated place to maintain its defect-free surface.

Storage Environment

Keep diligently away from fire, active heating sources, and continuous direct sunlight prior to release coating processing.

Pallet Packaging

Sturdy fumigation-free wooden pallets designed to be perfectly suitable for secure export transportation of optical films.

Label Information

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

Slitting Range

Different exact slit widths can be seamlessly supplied according to customer release coating laminating equipment and production die-cutting requirements.

Supply Note

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

Packaging of transparent PET film release liner rolls

Frequently Asked Questions

Q: What is the CY20DR transparent PET film mainly used for?

A: Due to its extreme cleanliness and smoothness, it is structurally used as a premium PET film release liner base in highly demanding OCA optical adhesive coating applications for touch screens and display assemblies.

Q: What are the main optical features of CY20DR?

A: It guarantees a flawless visual appearance, absolute high cleanliness, dramatically low surface roughness, and excellent temperature resistance, ensuring that no defects or impressions are transferred to the OCA layer.

Q: What standard base film thicknesses are strictly available?

A: The official technical TDS provides comprehensive performance parameters for thicknesses at 38μm, 50μm, 75μm, 100μm, and 125μm, catering to various die-cutting needs.

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 crucial silicone coating lamination, peeling force, and overall performance validation tests.

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