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Celanese Celcon® LW90-F2 POM, Tribological  (Unverified Data**)

Category Polymer , Thermoplastic , Acetal (POM)
Manufacturer
Trade Name Celcon®
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Celanese Celcon® LW90-F2 POM, Tribological  (Unverified Data**).pdf
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Material Notes:
Celcon® LW90-F2 is an acetal copolymer formulated with a nominal 9 melt flow rate base polymer and a standard level of polytetrafluoroethylene filler (PTFE). It is designed for use in wear applications against plastic, metal, glass, or ceramic mating surfLow wear/friction, low level PTFE modification, standard productStandard reciprocating screw injection molding machines with a high compression screw (minimum 3:1 and preferably 4:1) and low back pressure (0.35 Mpa/50 PSI) are favored. Using a low compression screw (I.E. general purpose 2:1 compression ratio) can resuInformation provided by Celanese
Physical Properties Metric English Comments
Specific Gravity 1.40 g/cc
1.40 g/cc
ASTM D792
Density 1.41 g/cc
0.0509 lb/in³
ISO 1183
Linear Mold Shrinkage, Flow 0.022 cm/cm
0.022 in/in
ASTM D955
0.023 cm/cm
0.023 in/in
ISO 294-4
Linear Mold Shrinkage, Transverse 0.018 cm/cm
0.018 in/in
ASTM D955
0.019 cm/cm
0.019 in/in
ISO 294-4
Melt Flow 8.0 g/10 min

@Load 2.16 kg,
Temperature 190 °C
8.0 g/10 min

@Load 4.76 lb,
Temperature 374 °F
(MVR) cm³/10min; ISO 1133
Mechanical Properties Metric English Comments
Tensile Strength, Yield 57.2 MPa
8300 psi
ASTM D638
63.0 MPa
9140 psi
50mm/min; ISO 527-2/1A
Elongation at Yield 9.0 %
9.0 %
50mm/min; ISO 527-2/1A
Tensile Modulus 2.65 GPa
384 ksi
1mm/min; ISO 527-2/1A
Flexural Modulus 2.60 GPa
377 ksi
ISO 178
2.34 GPa

@Temperature 22.8 °C
340 ksi

@Temperature 73.0 °F
ASTM D790
Izod Impact, Notched 0.534 J/cm
1.00 ft-lb/in
ASTM D256
Izod Impact, Notched (ISO) 5.10 kJ/m²
2.43 ft-lb/in²
ISO 180/1A
Charpy Impact Unnotched 12.0 J/cm²
57.1 ft-lb/in²
ISO 179/1eU
12.0 J/cm²

@Temperature -30.0 °C
57.1 ft-lb/in²

@Temperature -22.0 °F
ISO 179/1eU
Charpy Impact, Notched 0.500 J/cm²
2.38 ft-lb/in²
ISO 179/1eA
Thermal Properties Metric English Comments
CTE, linear 100 µm/m-°C
55.6 µin/in-°F
ISO 11359-2
CTE, linear, Transverse to Flow 90.0 µm/m-°C
50.0 µin/in-°F
ISO 11359-2
Melting Point 166 °C
331 °F
10°C/min; ISO 11357-1,-2,-3
Deflection Temperature at 1.8 MPa (264 psi) 98.0 °C
208 °F
ISO 75-1, -2
Processing Properties Metric English Comments
Processing Temperature 80.0 - 120 °C
176 - 248 °F
Cavity temperature
<= 205 °C
<= 401 °F
to avoid poor surface characteristics
Zone 1 170 - 180 °C
338 - 356 °F
Zone 2 180 - 190 °C
356 - 374 °F
Zone 3 180 - 190 °C
356 - 374 °F
Zone 4 190 - 200 °C
374 - 392 °F
Die Temperature 190 - 200 °C
374 - 392 °F
Melt Temperature 180 - 200 °C
356 - 392 °F
Mold Temperature 82.2 - 93.3 °C
180 - 200 °F
generally preferred range, may vary with thickness
Drying Temperature 80.0 - 100 °C
176 - 212 °F
Dry Time 3.00 hour
3.00 hour
Injection Pressure 60.0 - 120 MPa
8700 - 17400 psi
Hold Pressure 60.0 - 120 MPa
8700 - 17400 psi
Back Pressure 0.500 MPa
72.5 psi
Hot-Working Temperature 180 - 200 °C
356 - 392 °F
Descriptive Properties Value Comments
Injection molding Yes
Injection Speed slow-medium
Pellets Yes
Pre-drying Drying is not normally required with proper storage
Processing conditions ISO 9988-2
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