Epoxy Sheet & Glass Epoxy Sheet Manufacturer in India
Epoxy sheets, alternatively referred to as glass epoxy sheets or epoxy fiberglass sheets, are some of the most reliable laminates used in the electrical insulation industry. Made up of woven fiberglass cloth embedded with epoxy resins, the laminate group, which technically qualifies for being called FRP (Fiber Reinforced Plastics), exhibits outstanding mechanical, dielectric, and dimensional stability attributes unmatched by any other laminate material.
As a leading epoxy sheet supplier and a trusted glass epoxy sheet supplier in India, Harnawa Inc. supplies quality-controlled epoxy fiberglass sheets to manufacturers of motors, transformers, switchgears, and PCBs in the entire nation, thanks to international certifications and national delivery from our Mumbai facility – establishing ourselves as an acclaimed Electrical Insulation Material Manufacturer in India.
What is an Epoxy Sheet?
Epoxy sheets are created using the process of soaking layers of woven fiberglass cloth with epoxy resin and laminating/curing the layers in a controlled environment of temperature and pressure.
This process, which is the basic method used to create materials such as FR-4, G-10, G11, and FR-5, results in a hard and heavy laminate that is highly insulative against electricity, mechanically rigid, and dimensionally stable.
As such an epoxy fiberglass sheet, this category of materials forms the basis of innumerable manufacturing processes in the electrical and electronic industry – from structural insulation in switchgear to the substrate of printed circuit boards.
Understanding “FRP” — The Category Behind the Name
In any case, the term “FRP (Fiber Reinforced Plastic)” is the generic name used for epoxy fiberglass sheets. In fact, various insulation classes and other performance features depend upon the exact chemical composition of the resin and the glass fabric, and therefore, FRP sheets come in several grades (such as FR-4, G-10, G11, FR-5, GPO-3, 3240, etc.) each one providing specific performance features (temperature rating, fire-retardant qualities, etc.). This distinction becomes important when the material needs to be specified: while “epoxy sheet” or “FRP sheet” defines the material type, its particular grade determines its rated performance.
Key Features of Epoxy Sheet
Low Weight and Strength — Has good strength and lightness characteristics and is suitable for structural purposes without any extra weight.
Anti-Corrosive Properties — Has anti-corrosive properties against water, oil, and various industrial solvents in electrical and mechanical surroundings.
Excellent Electrical Properties — Has excellent electrical properties.
Benefits
Easy to Manage and Install — Machinable, cutable, and drillable with precision for instant usability in manufacturing parts.
Excellent Durability — Robust material that is very resistant to wear, moisture, and fatigue.
Wide Application Range — Ideal for different uses in insulation for structures and electrical insulation..
Applications of Epoxy Fiberglass Sheet
Epoxy sheet is widely specified across:
Electrical & Electronics
- Barrier insulation for switchgear; structural insulation panels
- Substrate material for PCBs
- Transformer structural insulation; terminal boards
- Insulation components for motors and generators
Industrial & Mechanical
- Insulation spacers/washers/gaskets
- Insulation components for industrial machines (precision machined)
- General purpose structural insulation used in industries
Electric Vehicles
- Insulation components for EV motors and batteries
Why Buyers Choose Harnawa Inc. Among Epoxy Sheet Manufacturers
Selection of epoxy sheet suppliers plays an important role because consistency of materials will affect safety and effectiveness of the final product. Being one of the well-known suppliers of glass epoxy sheets in India, Harnawa Inc. provides:
- Uninterrupted availability of tested epoxy fiberglass sheets in different varieties
- Quality management systems like UL, CE, RoHS, ISO 9001:2015, and REACH
- Customization in thickness as per the requirement of customers
- Availability across India in cities like Mumbai, Delhi, Pune, Ahmedabad
Explore Our Specific Epoxy Sheet Grades
Rather than a single generic specification, Harnawa Inc. supplies epoxy fiberglass sheet across multiple purpose-built grades, each suited to different application requirements:
Completing the Insulation System
Epoxy fiberglass sheet is frequently specified alongside other insulation materials to build a complete dielectric and structural system for motors, transformers, and switchgear:
Sourcing all of these materials from a single certified supplier ensures compatibility, consistent quality standards, and simplified procurement for OEMs and panel manufacturers.
Epoxy Sheet Manufacturer in India — Why Choose Harnawa Inc.
Harnawa Inc. is a known producer of epoxy sheets and a trusted supplier of glass epoxy sheets in India, providing top quality epoxy fiberglass sheets along with electrical insulators which include transformer insulators, motor insulators, generator insulators, switchgear insulators, and EV insulators.
Frequently Asked Questions
1.What is the distinction between epoxy sheet and FRP sheet?
The term “FRP” (Fiber Reinforced Plastic) is the broader range of materials, whereas the name “epoxy sheet” or “glass epoxy sheet” refers to the particular FRP laminates consisting of glass fiber and epoxy resin – one of the types of resins utilized for FRP materials.
2.What kind of epoxy sheet grade should be used?
It will depend on the operating temperature and the flame-retardancy of the particular application – FR-4 in case of fire resistance requirements, G11 if the application is characterized by high temperatures but does not require fire resistance, FR-5 for PCB applications requiring high Tg and 3240 for general-purpose insulator.
3.Will epoxy sheet fit for PCB fabrication?
Certainly. Glass epoxy laminate is the most common substrate material for PCBs, and FR-4 is the most popular grade of that material.
4.Could epoxy sheets be customized according to the necessary dimensions?
Yes, they could. Harnawa Inc. provides its clients with the possibility to customize the thickness and to make epoxy fiberglass sheets cut-to-size.
