Celanese Celcon® LM90Z POM, Specialty

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Celanese Celcon® LM90Z POM, Specialty
Categories:	Polymer; Thermoplastic; Acetal (Polyoxymethylene, POM)
Material Notes:	Celcon« LM90Z is a UV stable, nominal 9 melt flow acetal copolymer which is capable of being permanently marked by a laser. It gives protection against property and color deterioration in applications where significant UV exposure is anticipated from sunlight or artificial lighting. Parts molded from Celcon« LM90Z can be lasermarked with barcodes, indentification numbers, designs, 2-D symbology, etc. Information provided by Celanese
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Physical Properties	Original Value	Comments

Density	1.41 g/cc	ISO 1183
Moisture Absorption	0.200 %	23°C/50%RH; ISO 62
Water Absorption at Saturation	0.75 %	ISO 62
Melt Flow	8.0 g/10 min @Load 2.16 kg, Temperature 190 °C	[cm3/10min]; ISO 1133

Mechanical Properties	Original Value	Comments
Tensile Strength, Yield	63.0 MPa	50mm/min; ISO 527-2/1A
Elongation at Yield	9.0 %	50mm/min; ISO 527-2/1A
Tensile Modulus	2700 MPa	50mm/min; ISO 527-2/1A
Flexural Modulus	2670 MPa	ISO 178
Izod Impact, Notched (ISO)	5.20 kJ/m²	ISO 180/1A
Charpy Impact, Notched	4.70 kJ/m²	ISO 179/1eA

Thermal Properties	Original Value	Comments
CTE, linear, Parallel to Flow	100 µm/m-°C	ISO 11359-2
CTE, linear, Transverse to Flow	110 µm/m-°C	ISO 11359-2
Melting Point	167 °C	10°C/min; ISO 11357-1,-2,-3
Deflection Temperature at 1.8 MPa (264 psi)	95.0 °C	ISO 75-1, -2

Processing Properties	Original Value	Comments
Processing Temperature	80.0 - 120 °C	cavity
	180 - 200 °C	hot runner
Zone 1	170 - 180 °C
Zone 2	180 - 190 °C
Zone 3	180 - 190 °C
Zone 4	190 - 200 °C
Die Temperature	190 - 200 °C
Melt Temperature	180 - 200 °C
Drying Temperature	80.0 - 100 °C
Dry Time	3.00 hour
Injection Pressure	60.0 - 120 MPa
Hold Pressure	60.0 - 120 MPa
Back Pressure	<= 4.00 MPa

Descriptive Properties
Injection molding	Yes
Injection speed	slow-medium
Pellets	Yes
Processing conditions acc. ISO	9988-2

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PHCQ107 / 178562

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