Plenco 3557 Phenolic, Granular, Compression Molded

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Plenco 3557 Phenolic, Granular, Compression Molded (discontinued **)
Categories:	Polymer; Thermoset; Filled/Reinforced Thermoset; Phenolic; Phenolic, Resole, Mineral Filled
Material Notes:	PLENCO 03557 is a woodflour and mineral filled phenolic molding compound offering excellent dielectric strength values at elevated temperatures while maintaining mechanical strength properties. UL recognized under component file E40654. 03557 is available in black. Information supplied by Plenco.
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Physical Properties	Original Value	Comments

Bulk Density	0.640 g/cc	ASTM D1895
Density	1.42 g/cc	ASTM D792
Water Absorption	0.53 %	ASTM D570
Linear Mold Shrinkage	0.0053 cm/cm	ASTM D955

Mechanical Properties	Original Value	Comments
Hardness, Rockwell E	78	ASTM D785
Tensile Strength, Ultimate	50.0 MPa	ASTM D638
Elongation at Break	0.66 %	ASTM D638
Tensile Modulus	8.50 GPa	ASTM D638
Flexural Strength	85.0 MPa	ASTM D790
Flexural Modulus	7.70 GPa	ASTM D790
Compressive Strength	184 MPa	ASTM D695
Izod Impact, Notched	16.5 J/m	ASTM D256
Charpy Impact, Notched	0.187 J/cm²	ASTM D256
Impact	111	J/m Drop Ball Impact; PLENCO

Electrical Properties	Original Value	Comments
Volume Resistivity	2.40e+13 ohm-cm	ASTM D247
Dielectric Constant	5.1	ASTM D150
Dielectric Strength	10.3 kV/mm	Step by Step; ASTM D149
	13.6 kV/mm	Short Time; ASTM D149
Dissipation Factor	0.042	ASTM D150
Arc Resistance	141 sec	ASTM D495
Comparative Tracking Index	175 V	ASTM D3638

Thermal Properties	Original Value	Comments
Maximum Service Temperature, Air	194 °C	Heat Resistance; ASTM D570D
Deflection Temperature at 1.8 MPa (264 psi)	176 °C	ASTM D648
Flammability, UL94	HB @Thickness 1.50 mm
Oxygen Index	26.3 %	ASTM D2863
Shrinkage	0.36 %	72 hr, 120ºC; ASTM D1299

**
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