Raschig Group MELOPLAS® 2500 MF

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Raschig Group MELOPLAS® 2500 MF
Categories:	Polymer; Thermoset; Melamine; Melamine-Phenolic Copolymer; Phenolic
Material Notes:	Cellulose-reinforced MF molding compound in white and colored shades. Very good electrical properties, high surface hardness, good abrasion- and UV-stability, very good resistance to chemicals - also to foodstuff ingredients. Self-extinguishing (V-0/0,8 according to UL 94), UL listed. Free of halogens and toxic heavy metals. Forms: Low dust granulate packed in moisture resistant bags. Standard bag size: 25 kg palletized in 1.000 kg loads or big-bags. Processing: Injection or Compression. Applications: Molded parts in electrical engineering, Fittings for household appliances. Information provided by the Raschig Group
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Physical Properties	Metric	English	Comments

Specific Gravity	1.60 - 1.75 g/cc	1.60 - 1.75 g/cc	ISO 1183
Apparent Bulk Density	0.550 - 0.750 g/cc	0.0199 - 0.0271 lb/in³	ISO 60
Water Absorption	<= 2.5 % @Temperature 23.0 °C, Time 86400 sec	<= 2.5 % @Temperature 73.4 °F, Time 24.0 hour	ISO 62
Linear Mold Shrinkage	0.0050 - 0.010 cm/cm	0.0050 - 0.010 in/in	(longitudinal) Compression; ISO 2577
	0.0080 - 0.013 cm/cm	0.0080 - 0.013 in/in	(longitudinal) Injection; ISO 2257

Mechanical Properties	Metric	English	Comments
Tensile Strength, Yield	45.0 - 60.0 MPa	6530 - 8700 psi	Compression; ISO 527
	70.0 - 90.0 MPa	10200 - 13100 psi	Injection; ISO 527
Modulus of Elasticity	5.00 - 8.00 GPa	725 - 1160 ksi	Injection and Compression; ISO 527
Flexural Strength	100 - 130 MPa	14500 - 18900 psi	Compression; ISO 178
	110 - 140 MPa	16000 - 20300 psi	Injection; ISO 178
Flexural Modulus	5.00 - 8.00 GPa	725 - 1160 ksi	Injection and Compression; ISO 178
Compressive Strength	200 - 250 MPa	29000 - 36300 psi	Injection and Compression; ISO 604
Charpy Impact Unnotched	0.700 - 1.00 J/cm² @Temperature 23.0 °C	3.33 - 4.76 ft-lb/in² @Temperature 73.4 °F	Compression; ISO 179/ 1eU
	0.800 - 1.30 J/cm² @Temperature 23.0 °C	3.81 - 6.19 ft-lb/in² @Temperature 73.4 °F	Injection; ISO 179/ 1eU
Charpy Impact, Notched	0.130 - 0.150 J/cm²	0.619 - 0.714 ft-lb/in²	Injection and Compression; ISO 179/ 1eA

Electrical Properties	Metric	English	Comments
Volume Resistivity	1.00e+11 - 1.00e+12 ohm-cm	1.00e+11 - 1.00e+12 ohm-cm	IEC 60093
Surface Resistance	1.00e+10 - 1.00e+11 ohm	1.00e+10 - 1.00e+11 ohm	IEC 60093
Dielectric Constant	7.0 - 9.0 @Frequency 1e+6 Hz	7.0 - 9.0 @Frequency 1e+6 Hz	IEC 60250
	11 - 16 @Frequency 100 Hz	11 - 16 @Frequency 100 Hz	IEC 60250
Dielectric Strength	20.0 - 30.0 kV/mm @Thickness 1.00 mm	508 - 762 kV/in @Thickness 0.0394 in	IEC 60243-1
Dissipation Factor	0.030 - 0.050 @Frequency 1e+6 Hz	0.030 - 0.050 @Frequency 1e+6 Hz	IEC 60250
	0.30 - 0.50 @Frequency 100 Hz	0.30 - 0.50 @Frequency 100 Hz	IEC 60250
Comparative Tracking Index	>= 600 V	>= 600 V	IEC 60112

Thermal Properties	Metric	English	Comments
CTE, linear	15.0 - 35.0 µm/m-°C @Temperature 50.0 - 100 °C	8.33 - 19.4 µin/in-°F @Temperature 122 - 212 °F	ISO 11359-2
Thermal Conductivity	0.400 - 0.500 W/m-K	2.78 - 3.47 BTU-in/hr-ft²-°F	DIN 52 612
Maximum Service Temperature, Air	135 °C	275 °F	20,000 h; IEC 60216/T1
	160 °C	320 °F	< 50 h; IEC 60216/T1
Deflection Temperature at 1.8 MPa (264 psi)	170 - 190 °C	338 - 374 °F	Injection and Compression; ISO 75-A
Deflection Temperature at 8.0 MPa	120 - 140 °C	248 - 284 °F	Injection and Compression; ISO 75-C
Flammability, UL94	V-0 @Thickness 0.800 mm	V-0 @Thickness 0.0315 in
Shrinkage	1.2 - 2.0 % @Temperature 110 °C, Time 605000 sec	1.2 - 2.0 % @Temperature 230 °F, Time 168 hour	ISO 2577

Processing Properties	Metric	English	Comments
Shelf Life	6.00 Month @Temperature 15.0 - 25.0 °C	6.00 Month @Temperature 59.0 - 77.0 °F

Descriptive Properties
Arc resistance	5 Stufe		ASTM D495
Glow wire ignitability test	900/1		IEC 60695 2-13
Glow-wire flammability test	960/1		IEC 60695 2-12
Water Absorption	<150 mg		ISO 62; 24h / 23°C

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