Sumitomo Bakelite Vyncolit® X684 Phenolic Novolac

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Sumitomo Bakelite Vyncolit® X684 Phenolic Novolac
Categories:	Polymer; Thermoset; Phenolic; Phenolic, Novolac, Glass Filled
Material Notes:	Vyncolit® X684 is a glass bead and glass fiber reinforced phenolic molding compound. It is a free ammonia grade with excellent mechanical properties. Information provided by Sumitomo Bakelite High Performance Plastics (sbhpp)
Key Words:	PF-(GB+GF)50
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Physical Properties	Metric	English	Comments

Density	1.73 g/cc	0.0625 lb/in³	ISO 1183
Apparent Bulk Density	0.730 g/cc	0.0264 lb/in³	ISO 60
Water Absorption	0.16 %	0.16 %	ISO 62
Linear Mold Shrinkage	0.0031 cm/cm	0.0031 in/in	ISO 2577

Mechanical Properties	Metric	English	Comments
Tensile Strength	64.0 MPa	9280 psi	ISO 527-1
Elongation at Break	0.93 %	0.93 %	ISO 527-1
Tensile Modulus	11.0 GPa	1600 ksi	ISO 527-1
Flexural Strength	128 MPa	18600 psi	ISO 178
Flexural Modulus	10.0 GPa	1450 ksi	ISO 178
Flexural Strain at Break	1.53 %	1.53 %	ISO 178
Compressive Strength	205 MPa	29700 psi	ISO 604
Charpy Impact Unnotched	0.900 J/cm²	4.28 ft-lb/in²	ISO 179-1
Charpy Impact, Notched	0.310 J/cm²	1.48 ft-lb/in²	ISO 179-1

Thermal Properties	Metric	English	Comments
Deflection Temperature at 1.8 MPa (264 psi)	200 °C	392 °F	ISO 75 Af
Shrinkage	0.030 %	0.030 %	Post; ISO 2577

Descriptive Properties
Color	Green

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