Pomalux®
(acetal copolymer) |
Download
Product Brochure (21kb - pdf)
|
Medical grade Pomalux is made from
acetal copolymer resin which allows machined products the
ability to retain dimensional integrity, maintain stability in
water and most chemicals at elevated temperatures. Pomalux
products are opaque and are available in a wide array of
standard colors as well as on a custom basis. Recommended
sterilization techniques for Pomalux include EtO gas and steam
autoclaving. Disinfectants and germicides generally have no
effect on Pomalux, however, acidic solutions can degrade the
polymer.
The following physical property
information is based on typical values of the base acetal
copolymer resin.
|
|
Mechanical Properties |
| |
Units |
ASTM Test |
Result |
| Compressive Strength @ 1% deflection |
psi |
D695 |
4,500 |
| Compressive Strength @ 10%
deflection |
psi |
D695 |
16,000 |
| Fatigue Endurance (limit @107
cycles) |
psi |
D671 |
4,000 |
| Flexural Modulus |
psi |
D790 |
375,000 |
| Flexural Yield Strength @5% deform. |
psi |
D790 |
13,000 |
| Hardness-Rockwell |
- |
D785 |
M78 |
| Izod Impact Strength Notched @ 73°F |
ft·lbs/in |
D256 |
1.5 |
| Shear Strength |
psi |
D732 |
7.7 |
| Tensile Elongation @break |
% |
D638 |
75.0 |
| Tensile Impact |
ft·lbs/in2 |
D1822 |
90 |
| Tensile Modulus |
psi |
D638 |
380,000 |
| Tensile Strength @yield |
psi |
D638 |
8,800 |
|
|
Thermal Properties |
| |
Units |
ASTM Test |
Result |
| Coefficient of Thermal Expansion |
in/in/°F |
D696 |
4.5 TO 6.1 X 10-5 |
| Heat Deflection Temp. @66 psi |
°F |
D648 |
316 |
| Heat Deflection Temp. @264 psi |
°F |
D648 |
230 |
| Thermal Conductivity |
(BTU•in)/(hr•ft2•°F) |
C177 |
1.6 |
| Flammability Rating–UL94 @0.60” |
- |
- |
HB |
|
|
Other Properties |
| |
Units |
ASTM Test |
Result |
| Specific Gravity |
- |
D792 |
1.41 |
| Water Absorption @24 hours |
% |
D570 |
0.22 |
|
|
| Applications
Include: |
| • Provisional trials |
| • Instrument handles |
| • Medical device components |
| Advantages of
Pomalux® med: |
| • Lot controlled and traceable |
| • Resin complies with FDA
regulations 21 CFR 177.2470 and 21 CFR 178.3297 for colorants |
| • Resin meets the requirements of
USP Class VI specifications |
| • Stress relieved |
| • Laser markable |
| Manufacturing
Capabilities: |
| Standard: |
Rod: 1” to 4” diameter-colors (1/2”
increments)
1” to 4” diameter-black (1/4” increments) |
Rod lengths: 1”to 2” diameter - 96”
21/2” to 4” diameter - 48” |
| Non-Standard: |
| Rod: 1/2” to 6” diameter |
| Sheet: .060” to 3/16” thick |
| Slab: 1/4” to 4” thick |
| Film: .002” to .029” thick |
| Color/Grades: |
| Standard: Black, brown, dark blue,
dark green, gray, light blue, light green, red, rust and yellow. |
| *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. |
|
