Melamine NP329 - Sheet

Alternative and trade names
U.L. LISTED: N
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Description

Bleached linen with melamine resin system. NP329 provides better arc resistance than NP320E. Also, resistant to ammonia based refrigerants. Hard, durable material should be heated to punch, but machines very well with standard machining equipment.

This material data has been provided by Norplex Micarta.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

PropertyTemperatureValueComment

Bonding strength

23.0 °C

635 - 725.7 Kg

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ASTM D229, Condition A (Max.) & D-48/50 (Min.)

Density

23.0 °C

1.47 g/cm³

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ASTM D792

Moisture absorption

23.0 °C

3.6 %

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ASTM D570, Condition Dᵢ-24/23

Mechanical

PropertyTemperatureValueComment

Compressive strength

23.0 °C

303.4 MPa

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ASTM D695, Condition A, Flatwise

Elastic modulus

23.0 °C

17.9 GPa

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ASTM D638, Condition A

Elastic modulus, transverse

23.0 °C

10.3 GPa

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ASTM D638, Condition A

Flexural modulus

23.0 °C

11.7 GPa

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ASTM D790, Condition A

Flexural modulus, transverse

23.0 °C

7.6 GPa

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ASTM D790, Condition A

Flexural strength

23.0 °C

222 MPa

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ASTM D790, Condition A

Flexural strength, transverse

23.0 °C

175.8 MPa

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ASTM D790, Condition A

Hardness, Rockwell M

23.0 °C

95 [-]

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ASTM D785

Impact strength, Izod unnotched, ASTM

23.0 °C

96 J/m

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ASTM D256, Condition E-48/50

Impact strength, Izod unnotched, ASTM, Transversal

23.0 °C

69 J/m

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ASTM D256, Condition E-48/50

Shear strength, transverse

23.0 °C

179.3 MPa

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ASTM D732, Condition A

Tensile strength

23.0 °C

166.2 MPa

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ASTM D638, Condition A

Tensile strength, transverse

23.0 °C

94.5 MPa

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ASTM D638, Condition A

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

23.0 °C

1.8E-5 1/K

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IPC-TM 650-2.4.24

Coefficient of thermal expansion, transverse

23.0 °C

1.9E-5 1/K

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IPC-TM 650-2.4.24

Relative temperature index, mechanical strength

130 °C

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UL Bulletin 746b¹

Arc resistance

135 seconds, ASTM D495, Condition A

Flammability

UL Bulletin 94, Class HB, Condition A

Electrical

PropertyTemperatureValueComment

Breakdown voltage

23.0 °C

9 - 65 kV

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ASTM D149, Condition D48/50 (Min.) & A (Max.)

Comparative tracking index

23.0 °C

200 V

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ASTM D3638

Dielectric constant, 1MHz

23.0 °C

7.2 - 8.6 [-]

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ASTM D150, Condition A (Min.) & D-24/23 (Max.)

Dielectric strength

23.0 °C

3.94 - 14.96 kV/mm

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ASTM D149, Condition D-48/50 (Min.) & A (Max.)

Dissipation factor, 1MHz

23.0 °C

0.07 - 0.09 [-]

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ASTM D150, Condition A (Min.) & D-24/23 (Max.)

Technological properties

Property
Fillers

Cotton 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.

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.