Sumitomo Bakelite Durez® 29502 B Phenolic, Compression Grade

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Sumitomo Bakelite Durez® 29502 B Phenolic, Compression Grade
Categories:	Polymer; Thermoset; Phenolic; Phenolic, Novolac, Glass Filled
Material Notes:	Durez 29502 B brown phenolic is a two stage, glass and mineral filled, special purpose molding material with improved mechanical and heat resistant properties. It is formulated for close tolerance applications such as disc brake pistons where good dimensional stability and compatibility with various automotive fluids are essential. This product can be ground to accurate finished dimensions. Information provided by Sumitomo Bakelite North America, Inc.
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Physical Properties	Metric	English	Comments

Density	2.10 g/cc	0.0759 lb/in³	ASTM D792
Apparent Bulk Density	1.00 g/cc	0.0361 lb/in³	ASTM D1895
Water Absorption	0.030 %	0.030 %	ASTM D570
Linear Mold Shrinkage	0.0010 cm/cm	0.0010 in/in	ASTM D955

Mechanical Properties	Metric	English	Comments
Tensile Strength, Ultimate	65.0 MPa	9430 psi	ASTM D638
Tensile Modulus	23.0 GPa	3340 ksi	ASTM D638
Flexural Yield Strength	114 MPa	16500 psi
Compressive Yield Strength	338 MPa	49000 psi	ASTM D695
Izod Impact, Notched	0.214 J/cm	0.401 ft-lb/in	ASTM D256

Electrical Properties	Metric	English	Comments
Electrical Resistivity	1.00e+12 ohm-cm	1.00e+12 ohm-cm	ASTM D257
Dielectric Constant	5.0 @Frequency 1e+6 Hz	5.0 @Frequency 1e+6 Hz	ASTM D150
Dielectric Strength	11.8 kV/mm	300 kV/in	Step by step; ASTM D149
	13.8 kV/mm	351 kV/in	Short Time; ASTM D149
Dissipation Factor	0.015 @Frequency 1e+6 Hz	0.015 @Frequency 1e+6 Hz	ASTM D150

Thermal Properties	Metric	English	Comments
CTE, linear	15.0 µm/m-°C @Temperature 23.0 - 60.0 °C	8.33 µin/in-°F @Temperature 73.4 - 140 °F
Deflection Temperature at 1.8 MPa (264 psi)	204 °C	399 °F	ASTM D648
Glass Transition Temp, Tg	280 °C	536 °F

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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P90X37a / 130910

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