Delrin Delrin® 525GR NC000 POM-GF25

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Delrin Delrin® 525GR NC000 POM-GF25
Categories:	Polymer; Thermoplastic; Acetal (Polyoxymethylene, POM); Acetal Copolymer, 30% Glass Fiber Reinforced
Material Notes:	25% Glass Reinforced Medium Viscosity Acetal Homopolymer Information provided by DuPont; Delrin was sold by DuPont in 2023.
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Physical Properties	Original Value	Comments

Density	1.59 g/cc	ISO 1183
Water Absorption	1.26 % @Thickness 2.00 mm	Sim. to ISO 62
Moisture Absorption	0.170 % @Thickness 2.00 mm	Sim. to ISO 62
Linear Mold Shrinkage, Flow	0.0040 cm/cm	ISO 294-4, 2577
Linear Mold Shrinkage, Transverse	0.012 cm/cm	ISO 294-4, 2577
Melt Flow	8.0 g/10 min @Load 2.16 kg, Temperature 190 °C	ISO 1133

Mechanical Properties	Original Value	Comments
Hardness, Rockwell M	101	ISO 2039-2
Hardness, Rockwell R	122	ISO 2039-2
Tensile Strength at Break	160 MPa	ISO 527-1/-2
Elongation at Break	3.0 %	ISO 527-1/-2
Tensile Modulus	9500 MPa	ISO 527-1/-2
Flexural Strength	245 MPa @Strain 3.2 %	ISO 178
Flexural Modulus	9150 MPa	ISO 178
Compressive Strength	210 MPa	ISO 604
Poissons Ratio	0.34
Charpy Impact Unnotched	50.0 kJ/m² @Temperature -30.0 °C	ISO 179/1eU
	60.0 kJ/m² @Temperature 23.0 °C	ISO 179/1eU
Charpy Impact, Notched	10.0 kJ/m² @Temperature -30.0 °C	ISO 179/1eA
	10.0 kJ/m² @Temperature 23.0 °C	ISO 179/1eA
Tensile Creep Modulus, 1 hour	8500 MPa	1h; ISO 899-1
Tensile Creep Modulus, 1000 hours	6000 MPa	1000h; ISO 899-1

Electrical Properties	Original Value	Comments
Volume Resistivity	1.00e+14 ohm-cm	IEC 62631-3-1
Dielectric Constant	3.7 @Frequency 100 Hz	IEC 62631-2-1
	3.8 @Frequency 1e+6 Hz	IEC 62631-2-1
Comparative Tracking Index	600 V	IEC 60112

Thermal Properties	Original Value	Comments
CTE, linear, Parallel to Flow	35.0 µm/m-°C	ISO 11359-1/-2
CTE, linear, Transverse to Flow	100 µm/m-°C	ISO 11359-1/-2
Melting Point	178 °C	10°C/min; ISO 11357-1/-3
Deflection Temperature at 0.46 MPa (66 psi)	176 °C	ISO 75-1/-2
Deflection Temperature at 1.8 MPa (264 psi)	172 °C	ISO 75-1/-2
Flammability, UL94	HB @Thickness 0.750 mm	IEC 60695-11-10
	HB @Thickness 1.50 mm	IEC 60695-11-10
Flame Spread	49.0 mm/min @Thickness 1.00 mm	ISO 3795 (FMVSS 302)

Processing Properties	Original Value	Comments
Melt Temperature	215 °C	Optimum, Injection
	210 - 220 °C	Range, Injection
Mold Temperature	90.0 °C	Optimum, Injection
	80.0 - 100 °C	Injection
Drying Temperature	80.0 °C	Injection
Dry Time	2.00 - 4.00 hour	Injection, Dehumidified Dryer
Moisture Content	<= 0.20 %	Injection
Hold Pressure	80.0 - 100 MPa	Injection
	100 MPa	Injection
Annealing Temperature	160 °C	Optional; 2 mm/min; Injection

Descriptive Properties
Additives	Release agent
Annealing time (min/mm)	30	Optional, Injection
Drying Recommended	yes	Injection
FMVSS Class	B	ISO 3795 (FMVSS 302)
Fogging (%)	90	F-value (refraction); ISO 6452; DS,AMin
Fogging (mg)	1.2	G-value (condensate); ISO 6452
Max. screw tangential speed (m/s)	0.3	Injection
Part Marking Code	>POM-GF25<	ISO 11469
Polymer	POM-GF25
Processing Hold Pressure Time (s/mm)	8	Injection
Resin Identification	POM-GF25	ISO 1043

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PDSX5132 / 197772

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