San Diego Plastics
2220 McKinley Avenue
National City  CA  91950
800/925-4855   619/477-4855   FAX 619/477-4874

Zelux®
(polycarbonate)
 

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.

 
 
Mechanical Properties
  Units ASTM Test Zelux M Zelux W
Compressive Stength psi D695 12,500 12,500
Flexural Modulus psi D790 340,000 340,000
Flexural Strength @ yield psi D790 13,500 13,500
Hardness-Rockwell M - D785 M70-78 M70-78
Hardness-Rockwell R - D785 R118 R118
Izod Impact Strength Notched ft-lb/in D256 16.0 16.0
Charpy Index ft-lb/1/8"x1" D256 no break no break
Tensile Elongation @break % D638 110.0 110.0
Tensile Elongation @yield % D638 7.0 7.0
Tensile Strength @break psi D638 9,500 9,500
Tensile Strength @yeild psi D638 8,400 8,400

 
Thermal Properties
  Units ASTM Test Zelux M Zelux W
Coefficient of Thermal Expansion in/in/F D696 3.8x10-5 3.8x10-5
Flam. Rating-UL94 @11.5mm - - V-0* V-0*
Heat Deflection Temp. @66 psi F D648 280 280
Heat Deflection Temp. @264 psi F D648 275 275
Thermal Conductivity (BTU-in)/(hr-ft2-F) C177 1.35 1.35
*Sheet only.  Rod is UL94-HB
 
Electrical Properties
  Units ASTM Test Zelux M Zelux W
Dielectric Constant @60Hz - D150 2.9 2.9
Dielectric Constant @1MHz - D150 2.9 2.9
Dielectric Strength V/mil D149 380 380
Volume Resistivity ohm-cm D257 >1.0X1017 >1.0X1017

 
Optical Properties
  Units ASTM Test Zelux M Zelux W
Haze % D1003 0.5 -2.0 0.5 -2.0

 
Other Properties
  Units ASTM Test Zelux M Zelux W
Specific Gravity - D792 1.20 1.20
Water Absorption @24 hours % D570 0.15 0.15
Water Absorption @ Equilibrium % D570 0.35 0.35
 

 
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

 
*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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