Thermalux
®
(polysulfone)
 
 
 
 
 
 
 
 
 
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).
Units
ASTM Test
Result
Mechanical
Tensile Strength @yield
psi
D638
10,200
Tensile Strength @break
psi
D638
Tensile Modulus
psi
D638
360,000
Tensile Elongation @yield
%
D638
5.0-6.0
Tensile Elongation @break
%
D638
50.0-100.0
Flexural Strength @yield
psi
D790
15,400
Flexural Modulus
psi
D790
390,000
Compressive Strength @yield
psi
D695
13,900
Compressive Modulus
psi
D695
Izod Impact Strength
Un-Notched
ft•lbs/in
D256
No Break
Notched @73°F
ft•lbs/in
D256
1.3
Hardness (R, M, L or D)
D785
R120
D2240
M69
Thermal
Heat Deflection Temperature
@66 psi
°F
D648
358
@264 psi
°F
D648
345
Coefficient of Thermal Expansion
in/in/°F
D696
3.1x10
-5
Flammability Rating–UL94 @.176”
V-0
Thermal Conductivity
(BTU•in)/(hr•ft
2
•°F)
C177
1.80
Limiting Oxygen Index
%
D2863
30.0
Electrical
Dielectric Strength
V/mil
D149
425
Dielectric Constant @1kHz
D150
3.06
Dissipation Factor @1kHz
D150
0.0010
Volume Resistivity
ohm•cm
D257
5.0x10
16
Optical
Haze
%
D1746
5.0
Transparency
%
D1746
75
Other
Specific Gravity
D792
1.24
Water Absorption @24 hours
%
D570
0.30

 

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