Thermalux®
(polysulfone)
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Download Product Brochure (40kb - pdf)
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Made from UDEL® polysulfone resin, these stock shapes remain stable, resisting creep and
deformation under continuous load and elevated temperatures. They have high tensile strength
and, as temperatures increase, flexural modulus remains high. Thermalux products will withstand
exposure to soap, detergent solutions and some hydrocarbon oils, even at elevated temperatures
under moderate stress levels.
The following physical property information is based on typical values of the base polysulfone
resin (PSU).
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| Electrical Properties |
| Property |
Units |
Test |
Result |
| Dielectric Strength |
V/mil |
ASTM D149 |
425 |
| Dielectric Constant @ 1kHz |
- |
ASTM D150 |
3.06 |
| Dissipation Factor @ 1 kHz |
- |
ASTM D150 |
0.0010 |
| Volume Resistivity |
ohm•cm |
ASTM D257 |
5.0 x 1016 |
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| Mechanical Properties |
| Property |
Units |
Test |
Result |
| Tensile Strength @yeild |
psi |
ASTM D638 |
10,200 |
| Tensile Strength @break |
psi |
ASTM D638 |
- |
| Tensile Modulus |
psi |
ASTM D638 |
360,000 |
| Tensile Elongation @yield |
% |
ASTM D638 |
5.0 - 6.0 |
| Tensile Elongation @break |
% |
ASTM D638 |
50.0 - 100.0 |
| Flexural Strength @yield |
psi |
ASTM D790 |
15,400 |
| Flexural Modulus |
psi |
ASTM D790 |
390,000 |
| Compressive Strength @ yield |
psi |
ASTM D695 |
13,900 |
| Compressive Modulus |
psi |
ASTM D695 |
- |
| Izod Impact Strength Un-notched |
ft·lbs/in |
ASTM D256 |
no break |
| Izod Impact Strength Notched @ 73°F |
ft·lbs/in |
ASTM D256 |
1.3 |
| Hardness (R, M, L or D) |
- |
ASTM D7852 |
R120 |
| Hardness (R, M, L or D) |
- |
ASTM D2240 |
M69 |
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| Optical Properties |
| Property |
Units |
Test |
Result |
| Haze |
% |
ASTM D1746 |
5.0 |
| Transparency |
% |
ASTM D1746 |
75 |
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| Other Properties |
| Property |
Units |
Test |
Result |
| Specific Gravity |
- |
ASTM D792 |
1.24 |
| Water Absorption @24 hours |
% |
ASTM D570 |
0.30 |
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| Thermal Properties |
| Property |
Units |
Test |
Result |
| Heat Deflection Temp. @66 psi |
°F |
ASTM D648 |
358 |
| Heat Deflection Temp. @264 psi |
°F |
ASTM D648 |
345 |
| Coefficient of Thermal Expansion |
in/in/°F |
ASTM D696 |
3.1 x 10-5 |
| Flammability Rating-UL94 @ .176" |
- |
- |
V-0 |
| Thermal Conductivity |
(BTU•in)/(hr•ft2•°F) |
ASTM C177 |
1.80 |
| Limiting Oxygen Index |
% |
ASTM D2863 |
30.0 |
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| Applications Include: |
| Float switches |
| Membrane cartridge filter system |
| Solenoid valve body |
| Dairy connectors |
| Advantages of Thermalux®: |
| Dimensionally stable |
| Easily machined |
| FDA compliant |
| Transparent grades available |
| Excellent mechanical and electrical
properties |
| Steam resistant |
| Low outgassing levels |
| Manufacturing Capabilities: |
| Rod: 3/16” to 6” diameter |
| Sheet: .035” to 3/16” thick |
| Slab: 1/4” to 4” thick |
| Film: .001” to .029” thick |
| Color/Grades: |
| Light Amber (custom colors available) |
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*In addition to our standard capabilities, Westlake also
has the ability to process custom resins in various sizes
and colors with some exceptions.
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