Sumitomo Bakelite North America RXÂ® 643 Fiberglass Reinforced Phenolic

Category	Polymer , Thermoset , Filled/Reinforced Thermoset , Phenolic , Phenolic, Resole, Glass Fiber 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 RXÂ® 643 Fiberglass Reinforced Phenolic.pdf
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Material Notes:

RXÂ 643 is a fiberglass reinforced, ammonia-free, phenolic resole compound, with good dimensional stability and good strength at elevated temperatures. Meets ASTM D-5948 Type GPI-10.Information provided by Sumitomo Bak North America, Inc.

Physical Properties	Metric	English	Comments
Bulk Density	0.800 g/cc	0.0289 lb/inÂ³	ASTM D1895
Density	1.75 g/cc	0.0632 lb/inÂ³	ASTM D792
Water Absorption	0.050 % @Time 86400 sec	0.050 % @Time 24.0 hour	ASTM D570
	0.30 % @Time 173000 sec	0.30 % @Time 48.0 hour	ASTM D570
Linear Mold Shrinkage	0.0015 cm/cm	0.0015 in/in	ASTM D955

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell E	85	85	ASTM D785
Tensile Strength at Break	96.0 MPa	13900 psi	ASTM D638
Flexural Strength	186 MPa	27000 psi	ASTM D790
Flexural Modulus	13.8 GPa	2000 ksi	ASTM D790
Compressive Strength	234 MPa	33900 psi	ASTM D695
Izod Impact, Notched	0.590 J/cm	1.11 ft-lb/in	ASTM D256

Thermal Properties	Metric	English	Comments
CTE, linear, Parallel to Flow	13.0 Âµm/m-Â°C	7.22 Âµin/in-Â°F	ASTM E831
Deflection Temperature at 1.8 MPa (264 psi)	280 Â°C	536 Â°F	As Molded; ASTM D648A
	>= 282 Â°C	>= 540 Â°F	Post Baked; ASTM D648A

Electrical Properties	Metric	English	Comments
Dielectric Strength	11.4 kV/mm @Frequency 60.0 Hz	290 kV/in @Frequency 60.0 Hz	step-by-step, wet; ASTM D149
	13.8 kV/mm @Frequency 60.0 Hz	351 kV/in @Frequency 60.0 Hz	short time, wet; ASTM D149
Arc Resistance	135 sec	135 sec	ASTM D495

Descriptive Properties	Value	Comments
Color	Black
Form	Granular
Molding Method	Compression
	Injection
	Transfer

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