Low Shrinkage PET Film for Membrane Switches

Insulation Film

6027 Low Shrinkage PET Film for Membrane Switches

Transparent polyester film with low thermal shrinkage, excellent machinability, good electrical insulation, and good water vapor barrier performance, mainly used in solar backsheet base film, touch switches, flexible printed circuits, and other low-shrinkage applications.

FPC

WVTR barrier

Low shrinkage

Membrane switches

Electrical insulation

Product Model:

6027

Key Highlights

Low thermal shrinkage

Specifically designed with ultra-low thermal shrinkage (≤0.8% MD) to meet the rigorous dimensional requirements of flexible printed circuit applications.

Electrical insulation icon for electronics

Excellent electrical insulation

Engineered for precision electrical and electronic insulation applications, providing highly stable electrical performance support for delicate insulation structures.

Technology & Advantages

While standard BOPET film inherently possesses low shrinkage and stable physical properties, 6027 implements even stricter shrinkage control protocols. As a premium functional industrial film, it offers superior dimensional stability under high-temperature conditions, making it an ideal PET film substrate to meet the demanding precision of modern electronic product applications.

6027 Low Shrinkage PET Film for Membrane Switches Technology

Core Values

Application Fit:
Mainly utilized as a PET substrate for electronics, solar backsheet base films, high-precision touch switches, and complex flexible printed circuits requiring absolute dimensional control.

Core Performance:
Functions flawlessly as one of our leading heat resistant films. Low thermal shrinkage (≤0.8% MD), excellent machinability, and superior water vapor barrier performance ensure reliable operation.

Thickness Options:
Standard thicknesses encompass 50μm, 75μm, 100μm, 125μm, 188μm, and 250μm. Custom base film dimensions can be tailored per converting requirements.

Applications

PET film for membrane switches and touch panels

Membrane & Touch Switches

A dedicated low-shrinkage PET film for membrane switches, exceptionally suitable for high-temperature circuit printing.

Flexible printed circuits using low shrinkage PET film

Flexible Printed Circuits (FPC)

Reliable low-shrinkage PET film substrate for high-temperature printing, featuring stable corona treatment for optimal adhesion.

High-Temperature Tape

Used extensively as a stable base film for high-temperature adhesive tapes and related heat resistant film applications.

Solar Backsheet

A robust base film for solar new energy backsheets, providing excellent long-term water vapor barrier performance.

Technical Specifications

Properties	Unit	Standard	Typical Value
Thickness	μm	GB/T 13542.2-2021	50 / 75 / 100 / 125 / 188 / 250
Thickness Tolerance	%	GB/T 13542.2-2021	±3 / ±3 / ±3 / ±3 / ±4 / ±5
Tensile Strength - MD	MPa	GB/T 13542.2-2021	≥160 / ≥160 / ≥160 / ≥160 / ≥150 / ≥150
Tensile Strength - TD	MPa	GB/T 13542.2-2021	≥170 / ≥170 / ≥170 / ≥165 / ≥160 / ≥160
Elongation at Break - MD	%	GB/T 13542.2-2021	≥100
Elongation at Break - TD	%	GB/T 13542.2-2021	≥90
Heat Shrinkage @150°C, 15min - MD	%	TDS	≤0.8
Heat Shrinkage @150°C, 15min - TD	%	TDS	≤0.2
Wetting Tension	mN/m	GB/T 14216-2008	≥52
Haze	%	ASTM D1003	≤2.5 / ≤2.5 / ≤3.5 / ≤4.0 / ≤5.0 / ≤6.0
Electrical Strength	V/μm	GB/T 1408.1-2006	≥115 / ≥115 / ≥100 / ≥90 / ≥76 / ≥65
WVTR	g/(m2.24h)	TDS	--- / --- / --- / 3.5 / 2.5 / 2.0
PCT Accelerated Aging	-	121°C, 100%RH, 2atm, 40h	No cracking, no embrittlement

Remark: Parameters above are precisely extracted from the TDS for this low shrinkage PET film substrate. 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 PET substrate for electronics in a clean, dry, and ventilated place to preserve dimensional properties.

Storage Environment

Keep away from fire, heating sources, and direct sunlight to ensure shrinkage control.

Pallet

Fumigation-free wooden pallets suitable for the safe export transportation of sensitive electronic films.

Label Information

Each roll label precisely details the model, batch number, thickness, width, net weight, and production date.

Slitting Range

Different slit widths can be supplied according to the precise specifications of your laminating and FPC printing equipment.

Supply Note

Regular specifications support batch supply. Lead time depends on order specifications, total volume, and production schedule.

Packaging of 6027 low shrinkage PET film rolls for membrane switches

Frequently Asked Questions

Q: What is 6027 mainly used for?

A: It is mainly used as a dimensionally stable PET film for membrane switches, flexible printed circuits, solar backsheet base films, and high-temperature tapes.

Q: What are the main features of 6027 PET substrate?

A: The core features include exceptional low thermal shrinkage (≤0.8% MD), excellent machinability during high-temperature printing, and strong water vapor barrier performance.

Q: What standard thicknesses are available for this film?

A: Standard thicknesses cover 50μm, 75μm, 100μm, 125μm, 188μm, and 250μm to suit various electronics applications.

Q: Can other thicknesses be customized?

A: Yes. Other precision thicknesses can be customized according to the customer's specific technical requirements.

Q: Can samples be provided for testing?

A: Yes, samples or test rolls can be provided to validate shrinkage control, high-temperature printing, and performance in your production lines.

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