Pomalux®
(acetal copolymer) |
Download
Product Brochure (47kb - pdf)
|
Pomalux is a high-performance
acetal copolymer that has excellent mechanical, electrical, and
wear properties. It is engineered to provide outstanding
dimensional stability, even when machining parts with complex
geometries. Pomalux is an excellent choice for many bearing and
wear applications since it has low coefficient of friction and
wears well in both wet and dry environments. It is widely used
for assembly jigs and fixtures because of its inherent
dimensional stability and excellent wear properties. Pomalux is
often specified for electrical applications when low moisture
absorption and high dielectric strength are required. Both
natural (white) and black Pomalux are FDA compliant for use in
food processing machinery.
The following physical property
information is based on typical values of the base acetal
copolymer resin. |
|
Mechanical Properties |
| |
Units |
ASTM Test |
Unfilled |
25% GF |
| Flexural Modulus |
psi |
D790 |
370,000 |
1,050,000 |
| Hardness-Rockwell |
- |
D785 |
M80 |
M84 |
| Izod Impact Strength Notched @-40°F |
ft•lbs/in |
D256 |
1.2 |
0.7 |
| Izod Impact Strength Notched @73°F |
ft•lbs/in |
D256 |
1.5 |
1.1 |
| Tensile Elongation @break @ -40°F |
% |
D638 |
- |
2.0 |
| Tensile Elongation @break @ 73°F |
% |
D638 |
- |
3.5 |
| Tensile Elongation @break @ 160°F |
% |
D638 |
- |
5.0 |
| Tensile Modulus |
psi |
D638 |
380,000 |
1,200,000 |
| Tensile Strength @yield @ 73°F |
% |
D638 |
- |
16,000 |
| Tensile Strength @yield @ -40°F |
% |
D638 |
8600 |
23,100 |
| Tensile Strength @yield @ 160°F |
% |
D638 |
- |
10,000 |
|
|
Thermal Properties |
| |
Units |
ASTM Test |
Unfilled |
25% GF |
| Continuous Use Temp. |
°F |
D794 |
212 |
- |
| Coefficient of Thermal Expansion |
in/in/°F |
D696 |
- |
2.2x10-5 |
| Flam. Rating-UL94 @ .060" |
- |
- |
HB |
- |
| Heat Deflection Temp. @ 66 psi |
°F |
D648 |
315 |
331 |
| Heat Deflection Temp. @ 264 psi |
°F |
D648 |
219 |
325 |
|
|
Other Properties |
| |
Units |
ASTM Test |
Unfilled |
25% GF |
| Specific Gravity |
- |
D792 |
1.40 |
1.62 |
| Water Absorption @ 24 hrs |
% |
D570 |
0.20 |
0.27 |
| Dielectric Constant |
1e+006 Hz |
D150 |
3.80 |
- |
|
|
| Applications
Include: |
| • Jigs and fixtures |
| • Pump and valve parts |
| • Bushings |
| • Bearings |
| • Gears |
| • Wear pads |
| • Electrical components |
| Advantages of
Pomalux®: |
| • High strength and stiffness |
| • Low friction |
| • Easy to machine |
| • Good dimensional stability |
| • Low moisture absorption |
| • Resists abrasive wear in both wet
and dry environments |
| • Good chemical resistance |
| • Excellent electrical properties |
| • FDA compliant |
| Manufacturing
Capabilities: |
| Rod: 1/8” to 8” diameter |
| Sheet: .030” to 4” thick |
| Film: .002” to .029” thick |
| Color/Grades: |
| Natural (white) FDA |
| Black FDA |
| Glass-filled |
| PTFE-filled (Dielux) |
| Non-standard 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. |
| Pomalux® is a Registered Trademark
of Westlake Plastics Co. |
|
