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Hexcel® HexPly® 954-3A Curing Cyanate Resin
Categories: Polymer; Thermoset; Epoxy

Material Notes: HexPly® 954-3A is a 350°F (177°C) curing cyanate resin with a 400°F (204°C) glass transition temperature. Standard cure is two hours at 350°F (177°C). Glass transition temperatures can be maximized by a free-standing post cure at 450°F (232°C). HexPly® 954-3A is a controlled flow cyanate resin designed for autoclave and vacuum bag curing. HexPly® 954-3A can be impregnated on all available fibers and fabrics. The recommended lay-up procedure for HexPly® 954-3A is HSP-L3. The recommended cure procedure is HSP-C1.
Typical applications are primary and secondary space structures where dimensional stability and low moisture absorption are required.

Information provided by HexCel

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Physical PropertiesMetricEnglishComments
Density 1.19 g/cc0.0430 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength, Yield 56.0 MPa
@Temperature 23.0 °C
8120 psi
@Temperature 73.4 °F
Elongation at Break 1.9 %1.9 %
Tensile Modulus 3.30 GPa
@Temperature 23.0 °C
479 ksi
@Temperature 73.4 °F
Flexural Yield Strength 88.0 MPa
@Temperature 23.0 °C
12800 psi
@Temperature 73.4 °F
Flexural Modulus 3.20 GPa
@Temperature 23.0 °C
464 ksi
@Temperature 73.4 °F
 
Thermal PropertiesMetricEnglishComments
Glass Transition Temp, Tg 197 °C387 °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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PHEXC032 / 98502

Specialty Compounds RTP Company

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