NP500CR Cryogenic Epoxy Sheet – Superior Electrical & Physical Performance

NP500CR consists of a glass fabric with a specially formulated epoxy resin system resulting in excellent electrical characteristics and superior physical properties at cryogenic temperatures (-270°C to 135°C operating temperature range). It has very low thermal conductivity and has been produced specifically for use in cryogenic applications.

Properties

General

Property	Value	Comment
Bonding strength	997.9 Kg	Condition A
Density	1.8 g/cm³
Moisture absorption	0.1 %	Condition D₁-24/23

Mechanical

Property	Value	Comment
Compressive strength	448.2 MPa	Condition A \| Flatwise
Flexural modulus	16.5 GPa	Condition A, Transverse
	18.6 GPa	Condition A
Flexural strength	517.1 MPa	Condition A
	65000 MPa	Condition A, Transverse
Hardness, Rockwell M	100 [-]
Impact strength, Izod notched, ASTM	640.5 J/m	Condition E-48/50, Transverse
	747.3 J/m	Condition E-48/50
Shear strength	151.7 MPa	Transverse
Tensile strength	310.3 MPa	Condition A

Thermal

Property	Value	Comment
Coefficient of thermal expansion	1e-05 1/K
	1.3e-05 1/K	Transverse
Glass transition temperature	115 °C
Relative temperature index, electrical	130 °C	¹
Relative temperature index, mechanical strength	140 °C	¹
Arc resistance	100 seconds, Condition A
Flammability	UL 94, Class HB

Electrical

Property	Value	Testing Standard	Frequency	Comment
Breakdown voltage	50 kV	ASTM D149		Condition D-48/50
	60 kV	ASTM D149		Condition A
Comparative tracking index	150 V
Dielectric constant	4.8 [-]		1MHz	Condition D₁-24/23
Dielectric strength	25.98 kV/mm			Condition D-48/50
	26.37 kV/mm			Condition A
Dissipation factor	0.025 [-]		1MHz	Condition D₁-24/23

Technological properties

Property
Application areas	It is used in cryogenic applications.
Fillers	Glass Fabric
Other	1.This temperature is a recommendation only, and based upon experience in various applications. The maximum operating temperature is dependent upon the application and should be investigated prior to use 2.The mechanical properties are converted from American unit system to International unit system.
Supplier Disclaimer	This data, while believed to be accurate and based on reliable analytical methods, is for informational purposes only. The terms and conditions of the agreement under which it is sold will govern any sales of this product. Data supplied above are "typical values"; not to be considered "specification values". To assure the material's performance is adequate for a specific application; customers should verify, independent of Norplex-Micarta, performance characteristics of interest. It is the responsibility of the users of this information to make sure that they have the latest version of this TDB, and are urged to check with Customer Service or, preferably our web site, www.norplex-micarta.com, to determine if the information is the most current available.

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