Sumitomo Bakelite North America RX® 655 Novolac Phenolic

Category	Polymer , Thermoset , Filled/Reinforced Thermoset , Phenolic , Phenolic, Novolac, Mineral/Glass Filled
Manufacturer	Sumitomo Bakelite North America
Trade Name
Port	Shanghai port,China
Trade Terms	FOB, CFR, CIF
Payment Terms	L/C, T/T, Western Union
Download PDF	Sumitomo Bakelite North America RX® 655 Novolac Phenolic.pdf
Price	EMAIL US sales@lookpolymers.com
	Online Service lookpolymers 27660005

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 Bak Group

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

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

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

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

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