- Materials
- Forms
-
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.
Academia Aerospace & Aeronautical Automotive Chemical Manufacturing Electronics and Bioelectronics Fuel Cells & Hydrogen Life Science and Biomaterials Storage & Batteries Vacuum Technology Mining and Metals Nanomaterials Nuclear Oil & Gas Optics Packaging Research & Labs Space Technology Medical Devices
-
-
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
Toggle Nav
Formula: PTFE 25% GF
Form: Foil/Film/Sheet
Material: PTFE filled with Glass
Commodity: Polymers
PTFE filled with Glass films are part of Goodfellow's range of polymer laminates. This material combines polytetrafluoroethylene (PTFE) with a glass fiber reinforcement to produce a composite with enhanced mechanical and thermal properties compared to unfilled PTFE. The addition of the glass fibers also improves the strength and creep resistance of PTFE while maintaining its non-stick surface and chemical resistance. With 61 variations available, this versatile laminate can be customized for applications ranging from electrical insulators and thermal barriers to low-friction bearings and seals.
Tolerances
Foil/Film/Sheet
| Thickness | ±20% |
|---|
Material Properties for Polymers
Chemical Resistance
| Element | Value |
|---|---|
| Acids - concentrated | Poor |
| Acids - dilute | Good |
| Alcohols | Good |
| Alkalis | Good-Fair |
| Aromatic hydrocarbons | Good |
| Greases and Oils | Good |
| Halogenated Hydrocarbons | Good |
| Halogens | Good |
| Ketones | Good |
Mechanical Properties
| Element | Value |
|---|---|
| Coefficient of friction | 0.08-0.1 |
| Hardness - Rockwell | D60-70 - Shore |
| Elongation at break( % ) | 100-300 |
| Tensile modulus( GPa ) | 1.7 |
| Izod impact strength( J m⁻¹ ) | 144 |
| Tensile strength( MPa ) | Jul-20 |
Electrical Properties
| Element | Value |
|---|---|
| Dielectric constant @1MHz | 2.2-2.35 |
| Dissipation factor @ 1kHz | 0.003 |
| Dielectric strength( kV mm⁻¹ ) | 40 |
| Surface resistivity( Ohm/sq ) | 10¹⁵ |
| Volume resistivity( Ohmcm ) | 10¹⁶ |
Physical Properties
| Element | Value |
|---|---|
| Flammability | V0 |
| Resistance to Ultra-violet | Good |
| Limiting oxygen index( % ) | 95 |
| Water absorption - over 24 hours( % ) | 0.15 |
| Density( gcm⁻³ ) | 2.25 |
Thermal Properties
| Element | Value |
|---|---|
| Upper working temperature( C ) | 260 |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 0.33-0.42@23°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 75-100 |
Other Customers Purchased
-
Zirconium Foil Formula: Zr
Percentage Purity: 99.2%
Thickness: 0.005mm
Length 1: 25mm
Length 2: 25mm
CAS Number: 7440-67-7
UOM Code: 004-371-61
eachStarting at $165.58
Discounts applied for volume purchases -
Zinc Foil Formula: Zn
Percentage Purity: 99.9%
Thickness: 0.0025mm
Length 1: 25mm
Length 2: 25mm
CAS Number: 7440-66-6
UOM Code: 013-016-12
eachStarting at $152.18
Discounts applied for volume purchases -
X-ray Quality Rhodium Foil Grade: X-ray Quality
Formula: Rh
Percentage Purity: 99.9%
Temper: As Rolled
Thickness: 0.025mm
Length 1: 10mm
Length 2: 10mm
CAS Number: 7440-16-6
UOM Code: 464-926-09
eachStarting at $673.56
Discounts applied for volume purchases -
Yttrium Foil Formula: Y
Percentage Purity: 99%
Temper: As Rolled
Thickness: 0.1mm
Length 1: 50mm
Length 2: 50mm
CAS Number: 7440-65-5
UOM Code: 117-129-99
eachStarting at $235.38
Discounts applied for volume purchases -
Ytterbium Foil Formula: Yb
Percentage Purity: 99%
Temper: As Rolled
Thickness: 0.005mm
Length 1: 25mm
Length 2: 25mm
CAS Number: 7440-64-4
UOM Code: 000-446-82
eachStarting at $239.48
Discounts applied for volume purchases -
Yttria-stabilized Zirconia Sheet (5% Yttria) Formula: ZrO₂/Y₂O₃
Thickness: 1mm
Length 1: 25mm
Length 2: 25mm
Stabilised With: 5% Yttria
CAS Number: 114168-16-0
UOM Code: 128-868-36
eachStarting at $676.87
Discounts applied for volume purchases
