Isoval 11, G11 Epoxy Fibreglass Sheet 0.2mm x 1000mm x 1000mm

SKU: SWM000388P01V0079
Availability: Cut to Order, Ships in 2-5 W/Days.
$86.82
INC. GST
$78.14
EX. GST

BULK DISCOUNT RATES

All Bulk Prices Below Are Quoted Including GST.
Buy 2 or above and pay only $78.73 each
  • Premium Quality Epoxy Laminate Sheet with Layers of Fibreglass Reinforcement.
  • Meets or Exceeds All Requirements of NEMA G11.
  • Excellent Temperature Resistance (180°C), Mechanical Strength and Machinability.
  • Manufactured in Europe by Isovolta.

Our Isoval 11 is a high quality, high performance grade of epoxy laminate used for all kinds of electrical insulation and mechanical support applications. This material is manufactured from heat resistant epoxy resin which is used to laminate layer upon layer of fibreglass. The result is a rigid, high strength sheet that can be cut or machined accurately and exhibits excellent electrical & thermal properties.

Isoval 11 meets or exceeds all requirements of NEMA G11 (and more). This quality rigid electrical insulation board is manufactured in Europe by Isovolta and is widely used throughout Australian industry and around the world. Some of the more important benefits and features of this epoxy glass sheet are expanded upon below while more technical details are covered on our Isoval 11 Technical Data Sheet.

Excellent Dielectric Strength and Electrical Insulation Properties.

Isoval 11 Epoxy Sheet is most commonly used for electrical insulation purposes. In these applications, it excels as it offers superior dielectric strength, breakdown voltage and electrical properties. These are summarised with the values below (more available on the TDS).

Insulation Resistance after Immersion in Water
(IEC 167)
13 kV/mm
Breakdown Voltage at 90°C in Oil 
Parallel to Laminations (IEC 243)
40 kV
Permitivity at 50 hZ and 1 MHz (IEC 250) 5.5
Dissipation Factor at 50 Hz and 1 MHz (IEC 250) 0.04
Comparative Tracking Index (IEC 112) CTI 180

Very Good Heat Resistance and Thermal Endurance.

Isoval 11 has been tested for thermal endurance in accordance with the stringent requirements of European Standard IEC 216. In this test, Isoval 11 recorded a thermal index rating (TI) of 180. This ensures that this high-quality laminate is capable of withstanding maximum operating temperatures of 180ºC long term.

Isoval 11 Epoxy Fibreglass Laminate can be used in electrical applications up to and including Class H.

Mechanical Strength and Machinability.

Isoval 11 is a strong, rigid type of epoxy board that has excellent endurance, machinability and physical strength. It can be accurately machined to tight tolerances and has a high glass content which helps it withstand abrasion.

Since it’s been trusted and specified for decades, numerous aspects of this laminates physical strength have been tested over the years. Some of these are summarised in the table below with many more included on our Isoval 11 TDS.

Density (ISO 1183 / A) 2.0 g/cm³ (approx.)
Flexural Strength (ISO 178)
at 23°C
at 100°C
at 120°C
at 150°C
at 180°C

400 MPa
320 MPa
300 MPa
220 MPa
100 MPa
Flexural Modulus of Elasticity (ISO 178) 24,000 MPa (approx.)
Impact Strength (Chapry) Parallel
to Laminations (ISO 179/3 C)
with Notch
without Notch


50 kJ/m²
100 kJ/m²
Tensile Strengtrh (ISO 527) 240 MPa
Compressive Strength Perpendicular
to Laminations (ISO 604)
at 23°C
at 180°C


500 MPa
350 MPa
Compressive Strength Parallel 
to Laminations (ISO 604)
150 MPa
Flexural Strength after 1,000 Hours
at 100°C in Oil (ISO 178)
400 MPa

Meets or Exceeds Numerous International Standards.

Isovolta Isoval 11 Epoxy Glass is used by some of the world’s leading electrical machinery manufacturers and has been rigorously tested and certified. This laminated electrical insulation board conforms to the following international standards:

IEC 60893: Grade EP GC 203.
IEC 60893: Grade EP GC 308.
NEMA L11: Grade G11.

Available in a Large Selection of Thicknesses.

Here at Swift, we are proud to offer this quality insulation board in a vast selection of thicknesses. Numerous sheet sizes are also offered along with custom cut components to suit the precise needs of your application. Our standard selection of Isoval 11 thicknesses is included below.

This page lists our range of full sheets of this insulation material.

Our online store also has this material in a number of other sheet sizes. Links to these are included below.

We are also pleased to offer all kinds of fabricated washers, strips, panels and parts made from this material. For information on these, please do contact us.

0.2mm
0.3mm
0.5mm
0.8mm
1mm
1.5mm
2mm
2.5mm
3mm
3.5mm
4.5mm
5mm
6mm
8mm
10mm
12mm
16mm
20mm
25mm
30mm
32mm
38mm
50mm
65mm
75mm
100mm
 

Typical Applications for Isoval 11 G11 Epoxy Fibreglass Sheet.

Because of its combination of electrical insulation, mechanical strength and heat resistance, Isoval 11 Epoxy Fibreglass Board is used in a variety of different industries and countless applications. Some of the more common ones we see include:

  • Making high voltage slot wedges for electric motors.
  • Motor coil cheek plates.
  • Electric motor slot liners.
  • Electrical insulation blocks for high voltage equipment.
  • Electrical insulation washers and gaskets.
  • Heat resistant mechanical supports and thermal shields.
  • Insulating parts for commercial catering, heating and cooling equipment.
  • High voltage terminal blocks and cable supports.
  • Custom-made insulators and spacers.
  • Mechanical supports requiring high heat resistance and dielectric strength.
  • All kinds of replacement parts for worn or burnt-out insulators in the heavy transport, mechanical engineering, mining, construction and electrical repair sectors.
Insulation Resistance after Immersion in Water
(IEC 167)
13 kV/mm
Breakdown Voltage at 90°C in Oil 
Parallel to Laminations (IEC 243)
40 kV
Permitivity at 50 hZ and 1 MHz (IEC 250) 5.5
Dissipation Factor at 50 Hz and 1 MHz (IEC 250) 0.04
Comparative Tracking Index (IEC 112) CTI 180
Density (ISO 1183 / A) 2.0 g/cm³ (approx.)
Flexural Strength (ISO 178)
at 23°C
at 100°C
at 120°C
at 150°C
at 180°C

400 MPa
320 MPa
300 MPa
220 MPa
100 MPa
Flexural Modulus of Elasticity (ISO 178) 24,000 MPa (approx.)
Impact Strength (Chapry) Parallel
to Laminations (ISO 179/3 C)
with Notch
without Notch


50 kJ/m²
100 kJ/m²
Tensile Strengtrh (ISO 527) 240 MPa
Compressive Strength Perpendicular
to Laminations (ISO 604)
at 23°C
at 180°C


500 MPa
350 MPa
Compressive Strength Parallel 
to Laminations (ISO 604)
150 MPa
Flexural Strength after 1,000 Hours
at 100°C in Oil (ISO 178)
400 MPa

For more information on our Isoval 11 G11 Epoxy, please consult the Technical Data Sheet

SKU SWM000388P01-1000x1000
Brand Isovolta