Zelux®
(polycarbonate)
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Zelux polycarbonate is an engineering plastic with excellent dimensional stability and good
strength and stiffness over a wide range of service temperatures. Zelux is often used for structural
applications when clarity and impact strength are essential including lenses, manifolds, site
glasses, and machine guards. Zelux is used for a wide variety of electrical applications since it
has low moisture absorption, good insulating properties, and an excellent flammability rating.
Zelux is easy to fabricate, paint, and glue.
The following physical property information is based on typical values of the base
polycarbonate resin.
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| Electrical Properties |
| Property |
Units |
Test |
Zelux M |
Zelux W |
| Dielectric Constant @60Hz |
- |
ASTM D150 |
2.9 |
2.9 |
| Dielectric Constant @1MHz |
- |
ASTM D150 |
2.9 |
2.9 |
| Dielectric Strength |
V/mil |
ASTM D149 |
380 |
380 |
| Volume Resistivity |
ohm•cm |
ASTM D257 |
>1.0X1017 |
>1.0X1017 |
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| Mechanical Properties |
| Property |
Units |
Test |
Zelux M |
Zelux W |
| Compressive Stength |
psi |
ASTM D695 |
12,500 |
12,500 |
| Flexural Modulus |
psi |
ASTM D790 |
340,000 |
340,000 |
| Flexural Strength @ yield |
psi |
ASTM D790 |
13,500 |
13,500 |
| Hardness-Rockwell M |
- |
ASTM D785 |
M70-78 |
M70-78 |
| Hardness-Rockwell R |
- |
ASTM D785 |
R118 |
R118 |
| Izod Impact Strength Notched |
ft·lbs/in |
ASTM D256 |
16.0 |
16.0 |
| Charpy Index |
ft·lbs/1/8"x1" |
ASTM D256 |
no break |
no break |
| Tensile Elongation @break |
% |
ASTM D638 |
110.0 |
110.0 |
| Tensile Elongation @yield |
% |
ASTM D638 |
7.0 |
7.0 |
| Tensile Strength @break |
psi |
ASTM D638 |
9,500 |
9,500 |
| Tensile Strength @yeild |
psi |
ASTM D638 |
8,400 |
8,400 |
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| Optical Properties |
| Property |
Units |
Test |
Zelux M |
Zelux W |
| Haze |
% |
ASTM D1003 |
0.5 -2.0 |
0.5 -2.0 |
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| Other Properties |
| Property |
Units |
Test |
Zelux M |
Zelux W |
| Specific Gravity |
- |
ASTM D792 |
1.20 |
1.20 |
| Water Absorption @24 hours |
% |
ASTM D570 |
0.15 |
0.15 |
| Water Absorption @ Equilibrium |
% |
ASTM D570 |
0.35 |
0.35 |
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| Thermal Properties |
| Property |
Units |
Test |
Zelux M |
Zelux W |
| Coefficient of Thermal Expansion |
in/in/°F |
ASTM D696 |
3.8x10-5 |
3.8x10-5 |
| Flam. Rating-UL94 @11.5mm |
- |
- |
V-0 |
V-0 |
| Heat Deflection Temp. @66 psi |
°F |
ASTM D648 |
280 |
280 |
| Heat Deflection Temp. @264 psi |
°F |
ASTM D648 |
275 |
275 |
| Thermal Conductivity |
(BTU•in)/(hr•ft2•°F) |
ASTM C177 |
1.35 |
1.35 |
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| Applications Include: |
| Site glasses |
| Viewing windows |
| Impact shields |
| Fluid handling components |
| Manifolds |
| Scientific and analytical instrument
components |
| Electrical components |
| Housings and covers |
| Advantages of Zelux®: |
| Optical clarity (window grade) |
| Excellent impact resistance |
| Excellent dimensional stability |
| Low moisture absorption |
| Easy to machine |
| Good strength and stiffness over
a wide range of service temperatures |
| Good electrical insulating
properties |
| Easy to fabricate, paint and glue |
| Manufacturing Capabilities: |
| Rod: 1/8” to 15” diameter |
| Sheet: 3/8” to 4” thick |
| Film: .001” to .029” thick |
| Color/Grades: |
| Zelux W – Window grade (optically
clear) |
| Zelux M – Machine grade, stressrelieved
(natural and black) |
| Zelux M-GF – 10%, 20%, 30%, and 40%
Glass-filled grades (black) |
| FDA compliant grades and colors are
available on a custom basis |
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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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