Celanese Celcon® GC25TF POM, 25% Glass Reinforced

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Celanese Celcon® GC25TF POM, 25% Glass Reinforced
Categories:	Polymer; Thermoplastic; Acetal (Polyoxymethylene, POM); Acetal Copolymer, 30% Glass Fiber Reinforced
Material Notes:	Celcon« GC25TF is a 25% glass coupled acetal copolymer formulated for higher flow in thin walled and small parts. Celcon GC25TF is also exceptionally resistant to fuel. It offers excellent resistance to transportation fuels especially oxygenated fuels. Information provided by Celanese
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Physical Properties	Original Value	Comments

Specific Gravity	1.58 g/cc	ASTM D792
Density	1.575 g/cc	ISO 1183
Moisture Absorption	0.200 %	23°C/50%RH; ISO 62
Water Absorption at Saturation	0.80 %	ISO 62
Linear Mold Shrinkage, Flow	0.0040 cm/cm	ASTM D955
Linear Mold Shrinkage, Transverse	0.010 cm/cm	ASTM D955

Mechanical Properties	Original Value	Comments
Tensile Strength at Break	120 MPa	5mm/min; ISO 527-2/1A
Tensile Strength, Yield	17000 psi	ASTM D638
Elongation at Break	2.0 %	5mm/min; ISO 527-2/1A
	2.0 %	50mm/min; ISO 527-2/1A
Tensile Modulus	8720 MPa	50mm/min; ISO 527-2/1A
Flexural Modulus	8710 MPa	ISO 178
	1.20e+6 psi	ASTM D790
Izod Impact, Notched	1.30 ft-lb/in	ASTM D256
Izod Impact, Notched (ISO)	6.40 kJ/m²	ISO 180/1A
Charpy Impact, Notched	6.40 kJ/m²	ISO 179/1eA

Thermal Properties	Original Value	Comments
CTE, linear, Parallel to Flow	30.0 µm/m-°C	ISO 11359-2
CTE, linear, Transverse to Flow	100 µm/m-°C	ISO 11359-2
Melting Point	165 °C	10°C/min; ISO 11357-1,-2,-3
	331 °F	ASTM D3418
Deflection Temperature at 1.8 MPa (264 psi)	162 °C	ISO 75-1, -2
	245 °F	ASTM D648

Processing Properties	Original Value	Comments
Processing Temperature	90.0 - 120 °C	cavity
	190 - 210 °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	90.0 - 140 MPa
Hold Pressure	90.0 - 140 MPa
Back Pressure	<= 2.00 MPa

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

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PHCQ105 / 178560

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