G11-R Epoxy Glass Laminate EPGC205 High Strength Electrical Insulation Sheet

product details

Description

EPGC205 / G11R (HGW 2370.4) epoxy glass roving sheets are high-performance laminates made from premium epoxy resin and continuous glass rovings. Through a precise impregnation and curing process, the material achieves a uniform structure with excellent dielectric insulation and strong mechanical properties.

The combination of high-grade epoxy and tightly woven glass rovings provides outstanding resistance to thermal stress, moisture, and chemical exposure. EPGC205 is designed for demanding electrical systems and precision machinery, delivering stable insulation performance and reliable mechanical durability under continuous operation and harsh environments.


Features

Made from high-grade epoxy resin reinforced with continuous glass rovings

Precision-engineered laminate with uniform and consistent internal structure

Excellent electrical insulation and reliable dielectric performance

High mechanical strength for demanding structural insulation applications

Strong resistance to thermal stress, moisture, and chemical exposure

Designed for continuous operation under high mechanical and electrical loads

Maintains stable insulation performance in harsh and complex working environments


Applications

1. Electrical Machines Industry

Slot wedges

Slot insulating pads

Fillers and cover plates

Nut insulation and distance pieces


2. Electrical Equipment Manufacturing

Insulation structural parts for Class F electrical equipment

Intermediates and spacers with high mechanical requirements


3. Motor & Generator Industry

Insulating components used in motors and generators


Technical Data Sheet

EPGC205 Epoxy Glass Laminate Sheet / G11-R
ItemPropertyUnitStandard ValueTypical Value
1Flexural strength ⊥MPa≥340510
2Flexural strength ⊥MPa≥170320
3Tensile strengthMPa≥300530
4Charpy impact strength ∥  (Notched)kJ/m2≥70170
5Flexural modulus ⊥ (under normal condition)MPa--3.2x104
6Flexural modulus ⊥ (under 150±5℃)MPa--3.0x104
7Electric strength ⊥  (at 90℃±2℃ in oil ), 3mm thicknesskV/mm≥920
8Breakdown voltage ∥ (at 90℃±2℃ in oil)kV≥45≥50
9Insulation resistance (after 24h immersion in water)≥1.0×1043.8×105
10Water absorption, 3mm thicknessmg≤2217
11Comparative tracking index (CTI)__CTI600
12Densityg/cm31.80~2.21.99
13Temperature index_155℃
14FlammabilityClassHBHB


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