Polynt SMC 4500 R23 Sheet Molding Compound

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Polynt SMC 4500 R23 Sheet Molding Compound
Categories:	Polymer; Thermoset; Polyester, TS
Material Notes:	SMC 4500 R23 is a sheet molding compound based on an unsaturated polyester resin reinforced with glass fibers. This SMC has been developed for sink and tray application. SMC 4500 R23 joints good mechanical properties with stain and chemical resistance. SMC 4500 R23 has been studied to show a decorative effect on the part molded. SMC 4500 R23 is formulated according to RoHS, REAC regulation (SVHC) and WEEE European legislation. Information provided by Polynt Composites.
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Physical Properties	Metric	English	Comments

Density	1.70 g/cc	0.0614 lb/in³	ISO 1183
Filler Content	23 %	23 %	Glass; ISO 11667
Water Absorption	<= 0.20 %	<= 0.20 %	ISO 62 Met. 1
Linear Mold Shrinkage	0.0010 cm/cm	0.0010 in/in	ISO 2577

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell M	80	80	ISO 2039-2
Flexural Strength	130 MPa	18900 psi	ISO 14125A
Flexural Modulus	9.50 GPa	1380 ksi	ISO 14125A
Charpy Impact Unnotched	5.00 J/cm²	23.8 ft-lb/in²	ISO 179

Thermal Properties	Metric	English	Comments
Deflection Temperature at 1.8 MPa (264 psi)	>= 200 °C	>= 392 °F	ISO 75

Processing Properties	Metric	English	Comments
Mold Temperature	140 - 160 °C	284 - 320 °F
Hold Pressure	6.998 - 11.00 MPa	1015 - 1595 psi	Molding pressure

Descriptive Properties
Molding time	40 s/mm

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.

PPOLYN9115 / 231710

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