Vespel® SP-1 is an unfilled base resin grade. SP-1 provides maximum physical strength, elongation, as well as the best electrical and thermal insulation valves. Vespel® SP-1 is high performance polyimide, which offers a broad combination of temperature resistance, chemical resistance, mechanical toughness, natural lubricity, wear resistance, and insulation properties. Vespel® SP-1 provides operating temperatures from cryogenic too 300 degrees C (570 degrees F), great plasma resistance plus a UL rating for minimal electrical and thermal conductivity. Typical applications include spacers, high temperature fixtures, valve seats, balls, gaskets, insulators, and seals.
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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| Type | Size | Length | Color |
|---|---|---|---|
| Sheet | 0.062″ – 2.0″ | 10″ x 10″ | Natural |
| Rod | 1/4″ – 6″ DIA | CTS | Natural |
| Balls | .125″, .250″, .375″, .500″, .625″ | Note: Ball diameter tolerances are +/- .002″ | Natural |
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 | 0.051 |
| Water Absorption. 24 hrs | % | D570 | .24 |
| Mechanical Properties | Units | ASTM | Results |
|---|---|---|---|
| Tensile Strength @yield | psi | D638 | 12,500 |
| Tensile Modulus | psi | D638 | |
| Tensile Elongation @Break | % | D638 | 7.5 |
| Flexural Strength | psi | D790 | 16,000 |
| Flexural Modulus | psi | D790 | 450,000 |
| Hardness. Rockwell R | D785 | E45-60 | |
| IZOD Impact Strength Notched | ft-lb/in | D256 | 0.8 |
| Thermal Properties | Units | ASTM | Results |
|---|---|---|---|
| Coefficient of Linear Thermal Expansion | (x 10-5 in./in./°F) | D256 | 3.0 |
| Max Continuous Operating Temperature | °F | 500 | |
| Heat Deflection Temp at 264 psi | °F | 680 |
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 973-459-4321.