Inboard E is a technical laminate from the Isovolta product line, made from epoxy resin reinforced with glass fabric (EP GC 203). It is designed for applications requiring high electrical insulation, mechanical strength, and thermal resistance. It is characterized by excellent dimensional stability, even during long-term operation under demanding conditions. The material is halogen-free and complies with numerous industrial and electrical standards.
Main properties:
Outstanding electrical insulation at high voltages
High mechanical strength and rigidity
Thermal resistance up to 180 °C (Class H)
Low moisture absorption
Resistance to chemicals and oils
Good machinability (cutting, drilling, milling)
Halogen-free (environmentally friendly)
Excellent strength-to-weight ratio
Typical applications:
Insulating components in transformers and generators
Structural parts in high- and medium-voltage systems
Support and insulation plates in electric motors
Electrical barriers and support structures in switchgear
Industrial automation and power supply systems
Standards and classifications:
IEC 60893-3-2: EP GC 203
EN 60893: Thermosetting laminates based on epoxy resin
UL 94: V-0 (self-extinguishing)
Thermal class: H (180 °C)
RoHS compliance
Halogen-free: environmentally friendly composition
Names under various standards:
IEC 60893-3-2: EP GC 203
NEMA: G11 (similar material)
UL classification: V-0
Isovolta commercial name: Inboard E
