- Materials
- Forms
- Reference Materials
-
Services
-
Services
-
-
Sectors
-
Supporting cutting edge research and development with advanced materials to your needs.
High performance materials for extreme conditions.
Innovative and lightweight materials with high mechanical properties and durability.
Materials used in chemical engineering from consumables to innovative solutions.
Advanced materials characterized by high electrical or insulation performance.
High quality materials for renewable energy.
Biocompatible and biodegradable materials to the highest standards.
High purity, biocompatible materials for high performance devices and applications.
High purity metals and alloys in various forms and crucibles suitable to your needs.
State of the art materials for the next generation of technologies.
High performance materials for extreme conditions.
Durable materials for corrosive environments.
Foils, disks or windows across a range of materials to facilitate your innovation.
Polymers, metal foils, and sustainable materials for your packaging needs.
Your requirements for unique products and attributes will be met across our 170,000+ product range and customization capabilities.
High-quality materials across branded products in various forms including rods, wires, and foils support space technology needs.
Highest quality materials to support your need for small-quantity specialist materials such as graphite and lithium compounds.
High purity materials to improve the reproducibility and reliability of your evaporation processes.
-
- Product Ranges
-
Resources
-
Find out our latest news.
Read our latest insights, and opinions.
Discover our Innovation Discovered podcasts on innovation, products, interesting topics, and more.
Find out how we've worked with our partners
Our latest updates on what we are doing, find out more.
Find out more about us and the great roles we have available for talented individuals. Find out more.
Take a look at our global distributors.
Explore our FAQ resource to help answer your key questions.
Gain a clearer picture of the language used in scientific study
-
- About Us
Polyimide Disk Metallized with Aluminum (50-80 nm)
Available Configurations
Properties common to all products in this list
| Diameter | Other Variant |
|---|---|
| 4 mm to 50.8 mm | Uncoated polyimide |
Need custom configurations? Please contact us.
Do you need Kapton® instead? Explore our full Kapton® range.
Custom Cutting and Laser Micromachining
For customers requiring custom sizes or finished components rather than raw stock, Goodfellow offers precision cutting and micromachining services to drawing and specification.
| Capability | Details |
|---|---|
| Dimensional range | Min. thickness: 0.025mm Max. thickness: 0.125mm Max. width: 610mm |
| Dimensional tolerance | Linear dimensions ±1mm (<100mm) or +2/-1% (>=100mm) |
| Volume range | Prototype quantities through to several hundred-piece production runs |
| Lead time | Custom sizes: 48 hours to 1 week Complex geometries: ~2-4 weeks from confirmed drawing |
| Laser micromachining | For complex geometries requiring tight tolerances or intricate features beyond conventional machining, our polyimide film can be processed via laser micromachining through our microfabrication division, with a standard achievable target around 2 µm (tolerance +2/−1 µm) |
| Technical support | Goodfellow can review customer drawings and advise on design improvements for functionality and cost reduction. |
Key Features
Polyimide Disk Metallized with Aluminum (50–80 nm) is a precision-cut circular substrate in polyimide film sharing the base chemistry of Kapton® HN, with a vacuum-deposited aluminum layer on one face, offering comparable thermal service range, electrical insulation, and UL 94 V-0 flammability compliance to Kapton® HN for applications where DuPont-branded substrate specification is not required:
50–80 nm Coating Provides Greater Opacity & Conductivity Than Thinner Alternatives
The 50–80 nm aluminum coating provides greater opacity and conductivity than thinner alternatives, with improved EMI shielding effectiveness and better atomic oxygen protection in low Earth orbit compared with 30 nm variants.
Comparable Thermal Service Range & Electrical Insulation to Kapton® HN
The polyimide substrate offers comparable thermal service range, electrical insulation, and UL 94 V-0 flammability compliance to Kapton® HN, suiting it to applications with similar performance requirements where DuPont certification is not specified.
Improved EMI Shielding Effectiveness Over 30 nm Variants
Improved EMI shielding effectiveness over 30 nm variants makes this disk suited to applications requiring stronger electromagnetic attenuation in a precision circular form factor.
Better Atomic Oxygen Protection in Low Earth Orbit
Better atomic oxygen protection than thinner-coated alternatives supports longer service life of this disk in LEO applications where polyimide surfaces are progressively degraded by reactive oxygen species.
Precision Disk Format for Direct-Use in Measurement & Qualification
The precision disk format suits direct use in reflectance measurements, thermal emissivity characterization, metallization adhesion studies, and spacecraft thermal control material qualification trials without further cutting or forming.
Industrial Applications
Polyimide Disk Metallized with Aluminum (50–80 nm) is used across spacecraft thermal control qualification, EMI characterization, and LEO materials research where a thicker aluminum coating and DuPont certification is not required:
- ✦ Reflectance Measurements & Thermal Emissivity Characterization
- Used in reflectance measurements and thermal emissivity characterization, where the precision disk format provides a ready-to-use substrate and the 50–80 nm aluminum coating provides greater opacity than 30 nm variants for more robust optical property measurement.
- ✦ Metallization Adhesion Studies
- Applied in metallization adhesion studies, where the thicker 50–80 nm aluminum layer and the comparable-to-Kapton®-HN polyimide substrate provide an experimental platform for evaluating coating adhesion at higher coating thicknesses.
- ✦ Spacecraft Thermal Control Material Qualification Trials
- Used in spacecraft thermal control material qualification trials, where the disk format suits sample-scale qualification testing and the improved atomic oxygen protection of the 50–80 nm coating is evaluated against thinner alternatives.
- ✦ EMI Shielding Effectiveness Characterization
- Employed in EMI shielding effectiveness characterization, where improved shielding performance over 30 nm variants allows the coating thickness effect on electromagnetic attenuation to be quantified in a controlled disk-format test specimen.
Material Properties
| Element | Value |
|---|---|
| Acids - concentrated | Poor |
| Acids - dilute | Fair |
| Alcohols | Poor |
| Alkalis | Poor |
| Aromatic hydrocarbons | Good |
| Greases and Oils | Good |
| Halogenated Hydrocarbons | Good |
| Halogens | Fair |
| Ketones | Good |
| Element | Value |
|---|---|
| Coefficient of friction | 0.42 |
| Hardness - Rockwell | E52-99 |
| Elongation at break( % ) | Aug-70 |
| Tensile modulus( GPa ) | 2.0 – 3.0 |
| Izod impact strength( J m⁻¹ ) | 80 |
| Tensile strength( MPa ) | 70-150 |
| Element | Value |
|---|---|
| Dielectric constant @1MHz | 3.4 |
| Dissipation factor @ 1kHz | 0.0018 |
| Dielectric strength( kV mm⁻¹ ) | 154 – 303 |
| Surface resistivity( Ohm/sq ) | 10¹⁶ |
| Volume resistivity( Ohmcm ) | 10¹⁸ |
| Element | Value |
|---|---|
| Flammability | V0 |
| Radiation resistance | Good |
| Refractive index | 1.66 |
| Resistance to Ultra-violet | Poor |
| Limiting oxygen index( % ) | 53 |
| Water absorption - over 24 hours( % ) | 0.2-2.9 |
| Density( gcm⁻³ ) | 1.42 |
| Element | Value |
|---|---|
| Heat-deflection temperature - 1.8MPa( C ) | 360 |
| Lower working temperature( C ) | -270 |
| Upper working temperature( C ) | 250-320 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 1090 |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 0.1-0.35@23°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 30-60 |