Epoxy Fiberglass Laminate

RDS Epoxy Fiberglass Laminate is a premium composite material manufactured from E-glass fabric impregnated with epoxy resin under high temperature and pressure. This material is engineered to deliver superior electrical and mechanical performance, making it an ideal choice for demanding industrial applications. It exhibits exceptional resistance to heat and moisture, ensuring stability in transformer oil and humid environments.

Key Features & Benefits

• Superior Insulation: Excellent electrical insulating properties for high-voltage applications.

• Mechanical Strength: High strength-to-weight ratio with outstanding durability.

• Environmental Resistance: Retains performance in both dry and humid conditions; resistant to chemicals and moisture.

• Versatile Grades: Available in flame-retardant (UL94V-0) and high-temperature (Class F) variants.

Available Grades and Standards

We manufacture a wide range of laminates compliant with international standards, including NEMA, IEC, DIN, and GOST.

• G10 / EPGC201: Designed for general mechanical and electrical applications. It offers high strength at moderate temperatures and superior electrical properties compared to standard 3240 grades.

• FR4 / EPGC202: The most versatile and popular high-pressure thermoset plastic laminate. It features flame-retardant properties and near-zero water absorption. FR4 is widely used as an electrical insulator requiring high mechanical strength.

• G11 / EPGC203: A high-temperature grade (Class F) with enhanced mechanical and electrical properties. It is ideal for slot wedges, insulating structural parts in motors, generators, and transmission equipment.

• FR5 / EPGC204: Similar to G11 but with added flame-retardant properties for critical safety applications.

• Specialty Grades:

  • EPGC205: High retention of mechanical strength; suitable for Class F electrical equipment.

  • EPGC308: Similar to G11 with improved heat resistance and stable electrical properties in high humidity.

  • EPGC310 & EPGC311: Halogen-free grades with UL94V-0 combustion performance for eco-friendly compliance.

Technical Specifications

• Standard Sizes: 1020x1220mm, 1020x2020mm, 1220x2440mm

• Thickness Range: 0.1mm to 200mm

• Standard Colors: Yellow, Green, Natural

• Standards Compliance:

  • NEMA: G10, FR4, G11, FR5

  • IEC: EPGC201, EPGC202, EPGC203, EPGC204, EPGC205, EPGC308, EPGC310, EPGC311, EPGM203

  • DIN: HGW2372, HGW2372.2, HGW2372.4

  • GOST: 3240

Applications

Our Epoxy Fiberglass Laminates are widely used as insulating structural parts in motors, mechanical and electrical equipment, switchgears, and PCBs. Their robust nature allows them to perform reliably in harsh environments, including immersion in transformer oil.