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Sumitomo Bakelite North America RX® 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 RX® 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/in³
ASTM D1895
Density 1.75 g/cc
0.0632 lb/in³
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 µm/m-°C
7.22 µin/in-°F
ASTM E831
Deflection Temperature at 1.8 MPa (264 psi) 280 °C
536 °F
As Molded; ASTM D648A
>= 282 °C
>= 540 °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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