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Pomalux® Static-Control Acetal
Specifications

904 West 6th Street, Shiner, Texas 77984 USA
Phone: 1-361-594-2941     Fax: 1-361-594-2349     E-Mail: info@boedeker.com

1-800-444-3485

BPI Home Page | Applications | Materials Guide | Contact Us!

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GENERAL DESCRIPTION
click to resize photo Acetal is the common name for a family of thermoplastics with the chemical name "PolyOxy-Methylene". Acetal is available in a general purpose copolymer grade which provides high strength and stiffness, enhanced dimensional stability, good machinability, a low coefficient of friction and good wear properties. By adding special conductive materials to the resin, the conductivity of acetal is increased to control static electricity formation or conduction.

These additives may be in the form of non-carbon alloys, carbon powder, or carbon fibers. Some properties of the original acetal copolymer are modified by the addition of fillers, but chemical resistance, strength, and manufacturability remain generally the same.

AntiStatic materials are  NATURAL (tan or ivory)   and  BLACK  in color. Conductive material is always  BLACK  in color.

( see also Standard Acetal or Tecaform SD and Semitron ESd 225 Static-Dissipative Acetals )


Static Dissipative / Anti-Static (SD) :
Resistivity generally between 107 and 1012 ohms per square.
Initial electrostatic charges are suppressed.

Conductive (CN) :
Resistivity generally between 103 and 106 ohms per square.
No initial charge, provides path for charge to bleed off.

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TYPICAL PROPERTIES of POMALUX® STATIC-CONTROL ACETAL

ASTM or UL test Property Pomalux® SD-A Pomalux® CN-F Pomalux® CN-SS
- Classification Anti-Static Conductive Conductive
- Filler Material Non-Carbon Alloy Carbon Fiber Stainless Steel
PHYSICAL
D792 Density (lb/in³)
(g/cm³)
0.047
1.30
0.052
1.44
0.054
1.50
D570 Water Absorption, 24 hrs (%) 2.5 0.26 -
MECHANICAL
D638 Tensile Strength (psi) 6,200 11,000 8,600
D638 Tensile Modulus (psi) - - -
D638 Tensile Elongation at Yield (%) 350 3 -
D790 Flexural Strength (psi) 8,600 14,000 13,000
D790 Flexural Modulus (psi) 260,000 1,100,000 400,000
D695 Compressive Strength (psi) - - -
D695 Compressive Modulus (psi) - - -
D785 Hardness, Rockwell R - - -
D256 IZOD Notched Impact (ft-lb/in) 1.3 0.9 0.7
THERMAL
D696 Coefficient of Linear Thermal Expansion
(x 10-5 in./in./°F)
6.5 2.6 4.9
D648 Heat Deflection Temp (°F / °C)
at 66 psi
at 264 psi

-
192 / 89

-
320 / 160

-
225 / 107
D3418 Melting Temperature (°F / °C) - - -
- Max Operating Temp (°F / °C) - - -
C177 Thermal Conductivity
(BTU-in/ft²-hr-°F)
(x 10-4 cal/cm-sec-°C)

2.1
7.2

-
-

-
-
UL94 Flammability Rating - - -
ELECTRICAL
D257 Surface Resistivity (ohms/sq) 109-1011 102-106 102-106
D257 Volume Resistivity (ohm-cm) at 73°F, 50% RH 109-1011 102-106 102-106
NOTE: The information contained herein are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control. Contact us for manufacturers' complete material property datasheets.
All values at 73°F (23°C) unless otherwise noted.
POMALUX is a registered trademark of Westlake Plastic Company

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Boedeker Plastics, Inc.
904 West 6th Street, Shiner, Texas 77984 USA
USA TOLLFREE : 1-800-444-3485
Phone: 1-361-594-2941     Fax: 1-361-594-2349     E-Mail: info@boedeker.com

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