
Acetal (POM) Copolymer
Celcon® M90
General purpose, good optimization of properties
Celcon® acetal copolymer grade M90 is a medium viscosity polymer providing optimum performance in general purpose injection molding and extrusion of thin walled tubing and thin gauge film. This grade provides overall excellent performance in many applications. Chemical abbreviation according to ISO 1043-1: POM Please also see Hostaform® C 9021.
Processes
- Injection Mold Tooling & Parts
Colors
- Off-white
- Black
Applications
- Automotive Applications
- Blow Molding Applications
- Film
- Lighting Applications
- Profiles
- Sheet
Properties
General | ||||
Material Status
|
|
|||
Availability
|
|
|||
Uses
|
|
|||
Forms
|
|
|||
Processing Method
|
|
|||
Multi-Point Data
|
|
Physical |
Nominal Value
|
Unit
|
Test Method
|
Density
|
1.41
|
g/cm³
|
ISO 1183 |
Melt Volume-Flow Rate (MVR) (190°C/2.16 kg)
|
8.0
|
cm³/10min
|
ISO 1133 |
Molding Shrinkage
|
ISO 294-4 | ||
Across Flow
|
1.9
|
%
|
|
Flow
|
2.0
|
%
|
|
Water Absorption
|
ISO 62 | ||
Saturation, 73°F
|
0.75
|
%
|
|
Equilibrium, 73°F, 50% RH
|
0.20
|
%
|
Mechanical |
Nominal Value
|
Unit
|
Test Method
|
400000
|
psi
|
ISO 527-1 | |
Tensile Stress (Yield)
|
9430
|
psi
|
ISO 527-2/50 |
Tensile Strain (Yield)
|
10
|
%
|
ISO 527-2/50 |
Tensile Creep Modulus
|
ISO 899-1 | ||
1 hr
|
355000
|
psi
|
|
1000 hr
|
196000
|
psi
|
|
Flexural Modulus (73°F)
|
370000
|
psi
|
ISO 178 |
Flexural Stress (3.5% Strain)
|
10600
|
psi
|
ISO 178 |
Compressive Stress
|
ISO 604 | ||
1% Strain
|
3770
|
psi
|
|
6% Strain
|
12800
|
psi
|
|
Poisson’s Ratio
|
0.40
|
ISO 527 |
Thermal |
Nominal Value
|
Unit
|
Test Method
|
Deflection Temperature Under Load
|
|||
66 psi, Unannealed
|
316
|
°F
|
ISO 75-2/B |
264 psi, Unannealed
|
214
|
°F
|
ISO 75-2/A |
Ball Pressure Test (302°F)
|
Pass
|
IEC 60695-10-2 | |
Melting Temperature 3
|
331
|
°F
|
ISO 11357-3 |
CLTE
|
ISO 11359-2 | ||
Flow
|
6.7E-5
|
in/in/°F
|
|
Transverse
|
6.7E-5
|
in/in/°F
|
|
Effective Thermal Diffusivity
|
7.52E-5
|
in²/s
|
Internal Method |
Electrical |
Nominal Value
|
Unit
|
Test Method
|
Surface Resistivity (73°F)
|
3.0E+16
|
ohms
|
IEC 62631-3-2 |
Volume Resistivity (73°F)
|
8.0E+12
|
ohms·m
|
IEC 62631-3-1 |
Fill Analysis |
Nominal Value
|
Unit
|
Test Method
|
Melt Density
|
1.20
|
g/cm³
|
Internal Method |
Melt Specific Heat
|
0.528
|
Btu/lb/°F
|
Internal Method |
Melt Thermal Conductivity
|
1.1
|
Btu·in/hr/ft²/°F
|
Internal Method |
Ejection Temperature
|
284
|
°F
|
Injection |
Nominal Value
|
Unit
|
Drying Temperature
|
212 to 248
|
°F
|
Drying Time
|
3.0 to 4.0
|
hr
|
Rear Temperature
|
338 to 356
|
°F
|
Middle Temperature
|
356 to 374
|
°F
|
Front Temperature
|
356 to 374
|
°F
|
Injection Zone 4 Temperature
|
374 to 392
|
°F
|
Nozzle Temperature
|
374 to 392
|
°F
|
Processing (Melt) Temp
|
356 to 374
|
°F
|
Melt Temperature (Optimum)
|
345
|
°F
|
Mold Temperature
|
176 to 248
|
°F
|
Injection Rate
|
Slow-Moderate
|
|
Back Pressure
|
< 580
|
psi
|
Hot Runner
|
356 to 392
|
°F
|
Ready to Get Started?
Fill out the quick form below and one of our manufacturing experts will be in touch with you soon.