Sumitomo Bakelite North America SI 9550 Silicone Compound

Category	Polymer , Thermoset , Filled/Reinforced Thermoset , Silicone , Silicone, Molded, 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 SI 9550 Silicone Compound.pdf
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Material Notes:

SI 9550 is a short fiberglass reinforced silicone molding compound, which offers moderate strength properties, and dimensional stability and excellent long-term thermal stability at elevated temperatures.Information provided by Sumitomo Bak North America, Inc.

Physical Properties	Metric	English	Comments
Bulk Density	0.900 g/cc	0.0325 lb/inÂ³	ASTM D1895
Density	1.89 g/cc	0.0683 lb/inÂ³	ASTM D792
Water Absorption	0.090 % @Temperature 23.0 Â°C, Time 86400 sec	0.090 % @Temperature 73.4 Â°F, Time 24.0 hour	ASTM D570
Linear Mold Shrinkage	0.0010 - 0.0030 cm/cm	0.0010 - 0.0030 in/in	ASTM D955

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell M	75	75	ASTM D2583
Tensile Strength at Break	37.0 MPa	5370 psi	ASTM D638
Flexural Strength	65.0 MPa	9430 psi	at rupture; ASTM D790
Flexural Modulus	13.0 GPa	1890 ksi	ASTM D790
Compressive Strength	88.0 MPa	12800 psi	ASTM D695
Izod Impact, Notched	0.200 J/cm	0.375 ft-lb/in	ASTM D256

Thermal Properties	Metric	English	Comments
Deflection Temperature at 1.8 MPa (264 psi)	>= 282 Â°C	>= 540 Â°F	Post Baked; ASTM D648A

Electrical Properties	Metric	English	Comments
Dielectric Strength	8.10 kV/mm @Frequency 60.0 Hz	206 kV/in @Frequency 60.0 Hz	step-by-step, wet; ASTM D149
	13.3 kV/mm @Frequency 60.0 Hz	338 kV/in @Frequency 60.0 Hz	short time, wet; ASTM D149
Arc Resistance	240 sec	240 sec	ASTM D495

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

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