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PRODUCTS

Compression Molded
High Performance Films
Chemical Resistance
Static Control
High Performance
Medical
Lennite® Implant Grade
Pomalux®
Propylux® HS
Propylux® HS2
Radel® R
Tempalux®
Zelux® GS
Engineering

  Compression Molded Products Image

acetal copolymer

Download Datasheet (pdf 251kb)

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. Westlake Plastics Company manufactures all acetal extruded & compression molded sheets, plates and rods in accordance to ASTM D6100. This specification covers requirement and test methods for the material, dimensions, workmanship and the properties of extruded and compression molded sheets, plates and rods.

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

Pomalux®

Applications Include:
Provisional trials
Instrument handles
Medical device components

Advantages of Pomalux®
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-colorsrn(1/2" increments)
rn1" to 4" diameter-blackrn(1/4" increments)
Rod lengths: 1"to 2" diameter - 96"
rn21/2" 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.

 
Mechanical PropertiesTest MethodResult
 MetricEnglish
Compressive Strength at 1% deflection
ASTM D695
31 MPa
4.5 kpsi
Compressive Strength at 10% deflection
ASTM D695
110 MPa
16 kpsi
Fatigue Endurance (limit at 107 cycles)
ASTM D671
28 MPa
4 kpsi
Flexural Modulus
ASTM D790
2586 MPa
375 kpsi
Flexural Yield Strength at 5% deform.
ASTM D790
90 MPa
13 kpsi
Hardness-Rockwell
ASTM D785
M78
M78
Izod Impact Strength
Notched at 73 °F
ASTM D256
0.8 J/cm
1.5 ft-lb/in
Shear Strength
ASTM D732
0.053 MPa
0.0077 kpsi
Tensile Elongation at break
ASTM D638
75 %
75 %
Tensile Impact
ASTM D1822
189 kJ/m2
90 ft-lb/in2
Tensile Modulus
ASTM D638
2620 MPa
380 kpsi
Tensile Strength at yield
ASTM D638
61 MPa
8.8 kpsi
 
Other PropertiesTest MethodResult
 MetricEnglish
Specific Gravity
ASTM D792
1.41
1.41
Water Absorption at 24 hours
ASTM D570
0.22 %
0.22 %
 
Thermal PropertiesTest MethodResult
 MetricEnglish
Coefficient of Thermal Expansion
ASTM D696
8.1 x 10-5 m/m/°C
4.5 x 10-5 in/in/°F
Heat Deflection Temp. at 66 psi
ASTM D648
158 °C
316 °F
Heat Deflection Temp. at 264 psi
ASTM D648
110 °C
230 °F
Thermal Conductivity
ASTM C177
0.231 watt-meter/K
1.6 BTU-in/hr-ft2-°F
Flammability Rating-UL94 at 0.60
-
HB
HB
 
 
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