Sumitomo Bakelite North America RX® 655 Novolac Phenolic

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Sumitomo Bakelite North America RX® 655 Novolac Phenolic
Categories:	Polymer; Thermoset; Filled/Reinforced Thermoset; Phenolic; Phenolic, Novolac, Mineral/Glass Filled
Material Notes:	Fiberglass and mineral reinforced phenolic molding compound with very high fill level (75%). Excellent dimensional stability and good strength at elevated temperatures. Very low thermal expansion coefficient and negligible creep under load. Information provided by Vyncolit, a Sumitomo Bakelite Group
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Physical Properties	Metric	English	Comments

Bulk Density	0.950 g/cc	0.0343 lb/in³	Powder Density; ISO 60
Density	2.10 g/cc	0.0759 lb/in³	Relative Density; ISO 1183
Linear Mold Shrinkage	0.00060 cm/cm	0.00060 in/in	Compression Molding; ISO 2577

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell E	105	105	ISO 2039/2
Tensile Strength at Break	100 MPa	14500 psi	ISO 527
Flexural Strength	165 MPa	23900 psi	At Rupture; ISO 178
Flexural Modulus	27.0 GPa	3920 ksi	ISO 178
Compressive Strength	410 MPa	59500 psi	ISO 604
Charpy Impact, Notched	0.200 J/cm²	0.952 ft-lb/in²	ISO 179

Electrical Properties	Metric	English	Comments
Dielectric Strength	14.0 kV/mm @Thickness 3.00 mm	356 kV/in @Thickness 0.118 in	ASTM D149
Arc Resistance	180 sec	180 sec	ASTM D495
Comparative Tracking Index	250 V	250 V	IEC 112

Thermal Properties	Metric	English	Comments
CTE, linear, Parallel to Flow	17.0 µm/m-°C @Temperature 20.0 °C	9.44 µin/in-°F @Temperature 68.0 °F	TMA
Thermal Conductivity	0.940 W/m-K	6.52 BTU-in/hr-ft²-°F	ASTM C-518
Deflection Temperature at 1.8 MPa (264 psi)	200 °C	392 °F	As molded; ISO 75 A
	>= 282 °C	>= 540 °F	Post Baked; ISO 75 A

Descriptive Properties
Color	Black
Form	Granular
Main Filler	Glass Fiber & Mineral
Molding Method	Compression, transfer, injection

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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PVYNC017 / 72225

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