Radel® R is an extruded form of polyphenylsulfone (PPSU) that offers higher impact resistance and has superior hydrolysis resistance than other amorphous materials, including both polysulfone (PSU) and polyetherimide (PEI).
Radel® R PolyArylEtherSulfone or PAES (also known as Polyphenylsulfone or PPSU) withstands virtually unlimited steam sterilizability, outlasting other materials by a factor of 40:1. This factor makes it an excellent choice for medical devices which are constantly subjected to sterilization in steam autoclaves. Radel® R also resists common acids and bases, including commercial washing solutions, over a broad temperature range. Its heat deflection temperature of 400°F (205°C) makes it suitable for use in electronic assembly equipment and devices that must withstand solder temperatures.
Radel® R is available in amber (translucent), natural (bone white), and custom colors. Radel® R is USP Class VI compliant.
Engineering note: Although Radel® R has been approved for use in a variety of medical devices, it is not FDA compliant and therefore not appropriate for food contact applications. Radel is not a wear material, and its properties degrade when exposed to sunlight.
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.
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PolyArylEtherSulfone, PPSU
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| Type | Size | Length | Color |
|---|---|---|---|
| Sheet | 1/4″ – 3″ TH | Up to 24″ x 48″; CTS | Natural (White), Black; Custom Colors |
| Rod | 1/4″ – 6″ DIA | Natural (White), Black; Custom Colors |
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 | 0.047 |
| Water Absorption, 24 hrs | % | D570 | 0.4 |
| Mechanical Properties | Units | ASTM | Results |
|---|---|---|---|
| Tensile Strength @Yield | psi | D638 | 11000 |
| Tensile Modulus | psi | D638 | 340000 |
| Tensile Elongation @Yield | % | D638 | 30 |
| Flexural Strength | psi | D790 | 15500 |
| Flexural Modulus | psi | 400000 | 345000 |
| Compressive Strength | psi | D695 | 13400 |
| Compressive Modulus | psi | D695 | 280000 |
| Hardness, Rockwell R | D785 | R120/M80 | |
| IZOD Impact Strength Notched | ft-lb/in | D256 | 2.5 |
| Thermal Properties | Units | ASTM | Results |
|---|---|---|---|
| Coefficient of Linear Thermal Expansion | (x 10⁻⁵ in./in./°F) | D256 | 3.1 |
| Heat Deflection Temp at 264 psi | °F | 405 | |
| Melting Temperature | °F | D3418 | 428 |
| Max Operating Temp | °F | 300 | |
| Thermal Conductivity | BTU-in/ft²-hr-°F | C177 | 2.4 |
| Flammability Rating | UL94 | V – O |
| Electrical Properties | Units | ASTM | Results |
|---|---|---|---|
| Dielectric Strength | V/mil | D149 | 360 |
| Dielectric Constant @ 1 KHz | D150 | 3.44 | |
| Dissipation Factor @ 1 KHz | D150 | 0.0017 | |
| Volume Resistivity, 50% RH | ohm-cm | D257 | >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.