55NT is an epoxy laminate and prepreg system, reinforced with a non-woven aramid substrate. This system combines compatibility with lead-free processing, using a hightemperature epoxy resin, with the low in-plane (x,y) expansion and outstanding dimensional stability of non-woven aramid reinforcement.

Functions: Laminate

Reinforcement Material: Aramid (Kevlar)

Processing Methods: Continuous Lamination

Technical Data Sheet
  • TypeDocument Name
View All Documents

Knowde Enhanced TDS

Identification & Functionality

Reinforcement Material
Composite Materials Functions

Features & Benefits

Labeling Claims

Applications & Uses

Composites Processing Methods

Properties

Physical Form
Mechanical Properties
ValueUnitsTest Method / Conditions
Tensile Strength5 (35)kpsi (MPa)IPC TM-650 2.4.18.3
Flexural Strength38 (262)kpsi (MPa)IPC TM-650 2.4.4
Peel Strength to Copper (1 oz/35 micron) After Thermal Stress3.6 (0.6)lb/in (N/mm)IPC TM-650 2.4.8
Peel Strength to Copper (1 oz/35 micron) at Elevated Temperatures3.6 (0.6)lb/in (N/mm)IPC TM-650 2.4.8.2
Peel Strength to Copper (1 oz/35 micron) After Process Solutions3.6 (0.6)lb/in (N/mm)IPC TM-650 2.4.8
Young's Modulus2.0 (13.8)Mpsi (GPa)IPC TM-650 2.4.18.3
Physical Properties
ValueUnitsTest Method / Conditions
Specific Gravity1.38-ASTM D 792
Water Absorption (0.062)0.3%IPC TM-650 2.6.2.1
Thermal Properties
ValueUnitsTest Method / Conditions
Glass Transition Temperature (Tg) - DSC170°CIPC TM-650 2.4.25
Coefficient of Thermal Expansion (X,Y)6.0 - 9.0ppm/°CIPC TM-650 2.4.41
Coefficient of Thermal Expansion (Z) - Below Tg99ppm/°CIPC TM-650 2.4.24
Coefficient of Thermal Expansion (Z) - Above Tg259ppm/°CIPC TM-650 2.4.24
z-axis Expansion (50-260oC)3.5%IPC TM-650 2.4.24
Decomposition Temperature (Td, 5%)368°CIPC TM-650 2.3.41
Decomposition Temperature (Td) - Initial351°CIPC TM-650 2.3.41
T30028minIPC TM-650 2.4.24.1
T260min. 60minIPC TM-650 2.4.24.1
T288min. 60minIPC TM-650 2.4.24.1
Thermal Conductivity0.2W/(m K)DIN 52616
Electrical Properties
ValueUnitsTest Method / Conditions
Electrical Strength1240 (48.8)Volts/mil (kV/mm)IPC TM-650 2.5.6.2
Dielectric Constant (1 MHz)3.8-ASTM D 150
Dissipation Factor (1 MHz)0.015-ASTM D 150
Volume Resistivity (C96/35/90)2.3 x 10^7MΩ-cmIPC TM-650 2.5.17.1
Volume Resistivity (E24/125)6.6 x 10^7MΩ-cmIPC TM-650 2.5.17.1
Surface Resistivity (C96/35/90)1.8 x 10^8IPC TM-650 2.5.17.1
Surface Resistivity (E24/125)1.6 x 10^8IPC TM-650 2.5.17.1
Arc Resistance165secIPC TM-650 2.5.1
Flammability
ValueUnitsTest Method / Conditions
FlammabilityV-0classUL-94