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

Pomalux® CN-SS
(Conductive Acetal Copolymer))
Download Product Brochure (60kb - pdf) 

Stainless-steel-fiber-filled, non-sloughing, dimensionally stable material HDT @ 264 psi of 225° F. This material has relatively high chemical resistance, is extremely strong and stiff, and is an excellent choice for situations where carbon-based conductive fillers are not acceptable. Easily machined with carbide-tipped tooling to tight tolerances.

The following physical property information is based on typical values of the resin.

 
Mechanical Properties
  Units ASTM Test Result
Tensile Strength @yield psi D638 8,600
Tensile Elongation @break % D638 -
Flexural Strength psi D790 13,000
Flexural Modulus psi D790 400,000
Izod Impact Strength Notched ft·lbs/in D256 0.7
Izod Impact Strength Un-notched ft·lbs/in D256 -
Hardness-Shore D - D2240 86

 
Thermal Properties
  Units ASTM Test Result
Heat Deflection Temp. @264 psi °F D648 225
Heat Deflection Temp. @66 psi °F D648 -
Coefficient of Thermal Expansion in/in/°F D696 4.9 x 10-5
Thermal Conductivity (BTU•in)/(hr•ft2•°F) - -
Flam. Rating-UL94 - - -

 
Electrical Properties
  Units ASTM Test Result
Surface Resistivity dry ohm/sq D257 102 - 106
Volume Resistivity dry ohm/cm D257 102 - 106
Static decay 15% RH seconds Mil-B-81705-B -

 
Other Properties
  Units ASTM Test Result
Specific Gravity - D792 1.5
Water Absorption @24 hours % D570 -
 

 
Applications Include:
• Disk drive assembly fixtures
• Semiconductor/electronic components
• Telecommunication hardware
• Automotive equipment

 
Advantages of Pomalux® CN-SS:
• Low outgassing
• Consistent resistivity values
• Ease of machining
• Good chemical resistance

Manufacturing Capabilities:
Rod: 1/8” to 4” diameter
Sheet: 1/4” to 4” thick

 
Color/Grades:
Dark Gray

 
*In addition to our standard capabilities, Westlake also has the ability to process custom resins in various sizes and colors with some exceptions.

See Also:
Pomalux® CN-F
Pomalux® SD-A


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