EPGM203 Epoxy Glass Mat Laminated Sheet High Strength Electrical Insulation Board

product details

Description

EPGM203 is a high-performance epoxy glass mat laminate engineered for demanding industrial applications. Made from high-Tg epoxy resin reinforced with glass mat, it provides excellent mechanical strength, stable electrical insulation, and superior resistance to thermal degradation.

This material is ideal for electrical insulation components, structural parts, and other applications requiring high strength, thermal stability, and durability in harsh environments.


Features

High mechanical strength, suitable for demanding electrical and mechanical applications

Excellent electrical insulation and dielectric stability

F-grade heat resistance, continuous operation up to 155 °C

Resistant to humidity, temperature fluctuations, and mechanical stress

Ideal for motors, transformers, and high-temperature machinery

Robust and durable material for long-term reliability


Applications

Electrical Insulation: Motors, transformers, generators, and other high-temperature electrical equipment

Mechanical Components: Structural parts requiring high strength and durability

High-Temperature Machinery: Components exposed to heat, humidity, and mechanical stress

Suitable for industrial applications demanding reliable mechanical and electrical performance


Technical Data Sheet

EPGM203 Epoxy Glass Mat Laminated Sheet
Physical PropertiesStandardUnitRef ValueTest Value
DensityISO 1183g/cm31.8-2.01.8-2.0
Water absorption ( 3mm)ISO 62mg≤4035
Mechanical PropertiesStandardUnitRef ValueTest Value
Flexural strengthISO 178MPa≥320385
Elastic modulus of bending testISO 178MPa≥1500018000
Compressive strength perpendicularISO 604MPa≥350450
Impact strength Charpy or IzodISO 179/3CkJ/m2≥5598
Shear strength parallelVDE 0318/2MPa-40
Tensile strengthISO 527-4MPa≥250275
Electrical PropertiesStandardUnitRef ValueTest Value
Dielectric strength ⊥1mm at 90 °C in oilIEC 60243-1kV/mm≥10.5 @2mm16.5 @2mm
Breakdown voltage ∥ at 90 °C in oilIEC 60243-1kV≥3580
Permittivity 50 HzIEC 60250-≤5.5-
Permittivity 1 MHzIEC 60250-≤5.5-
Dissipation factor 50 HzIEC 60250-≤0.05-
Dissipation factor 1 MHzIEC 60250-≤0.05-
Insulation resistance after 24h in waterIEC 60167≥5x10^9 Ω5x10^12 Ω
Comparative tracking index (CTI)IEC 60112V≥180190
Thermal PropertiesStandardUnitRef ValueTest Value
Thermal EnduranceIEC 60216T.I.≤155155
FlammabilityIEC60707Class--


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