Polyethersulfone (PES) is a high temperature amorphous thermoplastic offering a superior combination of better chemical resistance and higher dry heat capability than polysulfone (Udel®) or polyetherimide (Ultem®).
Radel® A PolyEtherSulfone or PES (also known as PolyArylEtherSulfone or PAES) provides a greater margin of performance in such areas as toughness in comparison with other plastics. High resistance to heat and combustibility, low smoke emission, and transparency are the combination of properties possessed by components made from PES. These, coupled with light weight, good impact resistance, dimensional stability, and chemical resistance, make PES useful in the electrical/electronics, aerospace/aircraft, automotive, and mass transit industries.
Radel® A is FDA approved and NSF and UL listed. It is available in amber transparent and opaque colors. Glass-fiber reinforced polyethersulfone grades are also available. The addition of glass fibers increases the rigidity, tensile strength, creep resistance, dimensional stability, and chemical resistance of the material. Glass-filled PES is opaque, grayish in color.
Radel® R PolyArylEtherSulfone or PAES (also known as Polyphenylsulfone or PPSU) offers superior hydrolysis resistance when compared to other amorphous thermoplastics as measured by steam autoclaving cycles to failure. In fact, Radel® R has virtually unlimited steam sterilizability. This makes it an excellent choice for medical devices. It also resists common acids and bases – including commercial washing solutions – over a broad temperature range.
Radel® R is available in amber (translucent), natural (bone white), and custom colors. It is commonly used in sterilization trays, dental and surgical instrument handles, orthopedic implant trials and in fluid handling coupling and fitting applications. Radel® R is FDA, USDA, and USP Class VI compliant.
Emco Industrial Plastics doesn’t claim to represent all of the manufacturers or trade name products listed. This list is intended as a guide of typical materials available for purchase from Emco Industrial Plastics, Inc. For additional information, contact an Emco Industrial Plastics representative by filling out the form below.
Contact us today for your fabrication and machining needs!
Request Fabrication/Machining ServicesGeneric Name
Polyethersulfone, Unfilled
Available In
Sheet, Rod, Film, Other
Start Your Quote
Send us a message:
*Required Fields
| Type | Size | Length | Color |
|---|---|---|---|
| Sheet | .030″ – 4″ TH | Up to 24″ x 48″; CTS | Transparent Amber, White, Opaque colors |
| Rod | 3/8″ – 6″ DIA | Transparent Amber, White, Opaque colors | |
| Film | 0.001″ – 0.029″ TH | Up to 27″ wide roll width; Length CTS | Transparent Amber, White, Opaque colors |
| Other | Hex rod; Custom machined parts |
Give us your cut-to-size dimensions. We will precision-cut these plastics to your exact size. Additional sizes and colors available upon request.
| Physical Properties | Units | ASTM | Results |
|---|---|---|---|
| Density | lb/in³ | D792 | 0.05 |
| Water Absorption, 24 hrs | % | D570 | 0.54 |
| Mechanical Properties | Units | ASTM | Results |
|---|---|---|---|
| Tensile Strength @Yield | psi | D638 | 12200 |
| Tensile Modulus | psi | D638 | 385000 |
| Tensile Elongation @Yield | % | D638 | 6.5 |
| Flexural Strength | psi | D790 | 16100 |
| Flexural Modulus | psi | 400000 | 420000 |
| Compressive Strength | psi | D695 | 14500 |
| Compressive Modulus | psi | D695 | 399000 |
| Hardness, Rockwell R | D785 | R127/M88 | |
| IZOD Impact Strength Notched | ft-lb/in | D256 | 1.6 |
| Thermal Properties | Units | ASTM | Results |
|---|---|---|---|
| Coefficient of Linear Thermal Expansion | (x 10⁻ ⁵in./in./°F) | D256 | 2.7 |
| Heat Deflection Temp at 264 psi | °F | 400 | |
| Max Operating Temp | °F | 320 | |
| Thermal Conductivity | BTU-in/ft²-hr-°F | C177 | 1.13 |
| Flammability Rating | UL94 | V – O |
| Electrical Properties | Units | ASTM | Results |
|---|---|---|---|
| Dielectric Strength | V/mil | D149 | 380 |
| Dielectric Constant @ 1 KHz | D150 | 3.5 | |
| Dissipation Factor @ 1 KHz | D150 | 0.0022 | |
| Volume Resistivity, 50% RH | ohm-cm | D257 | 1.5 x 10¹⁵ |
NOTE: The property values presented above are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control. Contact us for manufacturers’ complete material property datasheets. All values at 73°F (23°C) unless otherwise noted.
NOTE: Several grades of this material are available. For additional information regarding this plastic, contact your Emco Industrial Plastics representative or call 973-862-4148.