Decoding Even Static Distribution, Surface Roughness, and Mechanical Strength for Metallizing and Circuit Boards
Product Overview
In high-precision manufacturing like metallizing, circuit board production, and advanced coating, static electricity is the ultimate invisible enemy. If the static charge is unevenly distributed across a film, it can cause pinholes in the metal layer, uneven ink deposits, or even short circuits in delicate electronics. This is where Lumirror S28 PET Film changes the game. As a high-ranked version of the legendary S10, it is specially engineered with severe control for even distribution of static electricity. While global giants like Toray, DuPont PET Film, and SKC PET Film offer extensive ranges, the S28 stands out as the ultimate enabler for flawless high-speed coating.
The Core Specs: Mastering Static and Handling
What makes Lumirror S28 PET Film a critical material for high-end converting? The data sheet reveals a highly tailored performance profile:
- Severe Control of Static Distribution: This is the film’s most vital feature. By ensuring an even distribution of static electricity across the entire surface, it prevents localized dust attraction and guarantees a uniform coating or metallized layer.
- Slight Roughness for Smooth Handling: The surface is engineered with a specific micro-roughness. This provides excellent slip and anti-blocking properties, ensuring the film feeds flawlessly through high-speed vacuum metallizers and coating machines without scratching or wrinkling.
- Balanced Mechanical and Electrical Properties: It maintains an excellent tensile strength (up to 221 MPa MD) and thermal stability, coupled with a UL746B RTI of 105°C.
Key Applications Across Industries
The unique properties of Lumirror S28 PET Film make it indispensable for:
- Metallized Face (Vacuum Metallizing): Where a uniform static field is required to ensure a flawless, pinhole-free aluminum layer for packaging or reflective applications.
- Circuit Boards (PCB/FPC): Used as a stable, static-controlled base material where electrical interference must be minimized.
- Labels and Silicone Releasing: Providing a smooth, consistent base for adhesive coating.
- High-Speed Printing and Coating: Ensuring even ink and adhesive distribution.
Sourcing a Reliable Alternative
While the Toray Lumirror S28 PET Film is a premium standard, global buyers often seek a Lumirror S28 Alternative to manage costs and secure supply chains. A successful replacement requires a manufacturer that can precisely replicate the even static distribution and the specific surface roughness. Without this level of control, your high-speed coating lines will suffer from yield loss and defects.
Technical Characteristics
The following values represent the typical capabilities of our equivalent High-Performance PET Film range:
- Material: Biaxially Oriented Polyethylene Terephthalate (Controlled Static)
- Thickness Range: 23 μm, 50 μm, 75 μm
- Tensile Strength: MD 214 to 221 MPa / TD 217 to 235 MPa
- Thermal Shrinkage at 150°C, 30min: MD 1.0% to 1.2% / TD 0.1% to 0.2%
- Coefficient of Friction: μs 0.6 / μd 0.4
- UL746B: RTI Electrical 105°C, Mechanical 105°C
- Certifications: RoHS, REACH compliant
Why Choose Jinlu Film as Your Supplier
Jinlu Film is a leading manufacturer of high-performance functional PET films. We offer a direct factory substitute for the Lumirror S28 series, delivering the same strict static control and surface roughness required for metallizing and circuit board manufacturing. Whether you need standard rolls or custom slitting, we offer factory-direct pricing, reliable global shipping, and quality that rivals top-tier brands.
Contact us today for a factory quote, technical data, or a sample of Metallized PET Film.
