Manufacturer, Supplier, Dealer, Distributor, Trader, Exporter, Importer Of Glass Epoxy Sheets, Glass Epoxy Rod, Glass Epoxy Square Rods, Glass Epoxy Tubes.
Glass Epoxy Sheet, also known as FR-4 or G-10 grade laminate, is a high-performance composite material made from woven fiberglass cloth impregnated with epoxy resin under high pressure and temperature. This results in a rigid, strong, lightweight, and electrically insulating material, widely used in engineering and industrial applications where high mechanical strength and excellent electrical insulation are required.
Broad Usage of Glass Epoxy Sheet (FR-4 / G-10 Grade) in Engineering :
Glass Epoxy Sheets are extensively used across industries such as:
- Made with fine cotton cloth
- Electrical & Electronics: Printed circuit boards (PCB), insulation panels, switchgear, and busbar supports.
- Mechanical Engineering: Gears, jigs, fixtures, bearings, and insulating spacers.
- Aerospace & Defense: Structural parts requiring strength-to-weight advantage.
- Automotive & Railways: Insulating components, gaskets, and safety covers.
- Chemical & Pharma Industry: Components resistant to moisture, solvents, and chemicals.
- General Engineering: Conveyor parts, insulators, washers, and housings.
Salient Features
- Superior Dielectric Strength
- Superior Dielectric Strength
- Flame Retardant (FR4 Rating)
- High Mechanical Load Capacity
- Excellent Dimensional Stability
- Moisture and Chemical Resistance
- Excellent Strength-to-Weight Ratio
- Flame Retardant & Self-Extinguishing (FR-4 Grade)
- Superior Electrical Insulation
- Smooth Surface Finish
- Available in Various Colors (Green, Yellow, Black, etc.)
Applications
- PCB Insulating Substrates
- Switchgear Components
- Transformer Mounting Plates
- High-Frequency Electronics Insulators
- Fixtures In Electronics Assembly
Glass Epoxy Sheet (FR-4 / G-10 Grade) – Technical Properties (Typical Values) :
| Property | Typical Value |
|---|---|
| Density | 1.8 – 2.0 g/cm³ |
| Tensile Strength | 300 – 400 MPa |
| Flexural Strength | 450 – 600 MPa |
| Compressive Strength | 350 – 450 MPa |
| Impact Strength (Izod) | 12 – 15 kJ/m² |
| Water Absorption | < 0.15% |
| Dielectric Strength | 16 – 20 kV/mm |
| Operating Temperature | -40°C to +140°C (continuous service) |
| Flame Retardancy | UL94-V0 (FR-4 Grade) |
Engineering Advantages of Glass Epoxy Sheet (FR-4 / G-10 Grade) :
1. Fine Weave Cotton Fabric Phenolic (Grade F1 / F2 / F3)
- Made with fine cotton cloth
- High mechanical strength with lightweight properties
- Excellent electrical insulation even in humid conditions
- Flame retardant (FR-4) and safe for electrical applications
- Good chemical resistance to solvents, oils, and alkalis
- Stable dimensional accuracy under load and temperature variations
- Easy to machine, cut, and fabricate into custom parts
Available Thickness & Sizes :
We supply Glass Epoxy Sheets (FR-4 / G-10 Grade) in a wide range of thicknesses and standard sizes.
| Thickness: | 0.5 mm to 100 mm |
| Standard Sheet Sizes: | 1000 mm × 1000 mm, 1020 mm × 1220 mm, 1200 mm × 1200 mm, 1220 mm × 2440 mm (4ft × 8ft) |
Custom cut sizes and machined parts are available on request.
What is Glass Epoxy Rod (FR-4 / G-10 Grade)?
Glass Epoxy Rods, also known as FR-4 or G-10 grade rods, are high-performance insulating materials manufactured by reinforcing woven glass fabric with epoxy resin under high pressure and temperature. These rods are known for their excellent electrical insulation, mechanical strength, and thermal resistance, making them widely used in engineering and industrial applications.
Broad Usage of Glass Epoxy Rods in Engineering :
Glass Epoxy Rods are extensively used across multiple industries, including::
- Electrical & Electronics – Insulating components, coil supports, switchgear, and transformer parts.
- Mechanical Engineering – Bushes, spacers, gears, and precision machined parts.
- Aerospace & Defense – Structural supports and components requiring strength-to-weight balance.
- Automotive – High-temperature resistant insulators and mechanical parts.
- Chemical & Heavy Industry – Corrosion-resistant machine parts and insulating rods.
Technical Properties (Typical Values)
| Property | Typical Value |
|---|---|
| Density | 1.85 – 2.0 g/cm³ |
| Flexural Strength | 340 – 400 MPa |
| Compressive Strength | 350 – 450 MPa |
| Tensile Strength | 300 – 350 MPa |
| Dielectric Strength | 12 – 20 kV/mm |
| Water Absorption | < 0.2% |
| Continuous Operating Temperature | -40°C to +150°C (FR-4), up to +180°C (G-10 in specific grades) |
| Flammability | UL94 V-0 (FR-4) |
(Values may vary depending on manufacturer and grade)
Engineering Advantages
- Excellent electrical insulation even at high voltages.
- High mechanical strength with dimensional stability.
- Good chemical & moisture resistance.
- Excellent machinability for precision parts.
- Maintains performance in wide temperature ranges.
Key Features
- Strong yet lightweight
- Flame retardant (FR-4 grade)
- High dielectric strength
- Corrosion and moisture resistant
- Good wear resistance
- Easy to fabricate and machine
Available Thickness & Sizes
Glass Epoxy Rods (FR-4 / G-10 Grade) are available in:
| Property | Typical Value |
|---|---|
| Diameters | 6 mm to 200 mm (custom on request) |
| Lengths | Standard 1000 mm (1 meter), can be cut to size |
| Colors | Green (standard), yellowish or natural shades depending on grade |
Custom sizes and machining options are available as per customer requirements.
Glass Epoxy Round Rods are Cylindrical Composite Engineering Plastic (Glass Epoxy – G10/FR4) Rod Products with Excellent Mechanical Strength, Dielectric Properties, And Dimensional Precision. These Rods Are Ideal For Machined Insulating Components In Electronics And Electrical Systems.
Salient Features
- High Dielectric And Mechanical Strength
- Good Thermal Stability
- Precision Round Shape
- Machinable With Tight Tolerances
- Chemical And Moisture Resistant
Applications
- Insulating Pins And Shafts
- Electrical Spacers And Posts
- Custom Component Fabrication
- High-Stress Electrical Mounts
- PCB Support Elements
Glass Epoxy Square Rods are Square‑Section Composite Engineering Plastic (Glass Epoxy – G10/FR4) Rod Products Featuring Excellent Rigidity, Superior Electrical Insulating Capabilities, And Precise Square Profiles. Suited For Structural Insulating Assemblies In Electrical And Electronic Equipment.
Salient Features
- Strong Mechanical And Dielectric Performance
- Precise Square Geometry
- Excellent Dimensional Stability
- Machinable And Durable
- Resistant To Moisture And Chemicals
Applications
- Structural Insulating Blocks
- PCB Component Mounts
- Switchgear Support Structures
- Electronic Fixture Blocks
- Insulating Hardware Components
Glass Epoxy Tubes are Hollow Composite Engineering Plastic (Glass Epoxy – G10/FR4) Tube Products Offering High Dielectric Strength, Structural Rigidity, And Thermal Stability. Ideal for Use In Electrical Insulation, High-Stress Mounting, And Component Protection In Harsh Environments.
Salient Features
- Outstanding Electrical Insulation
- Structural Durability
- Excellent Thermal And Moisture Stability
- Precision Hollow Geometry
- Machinable For Custom Insulating Sleeves
Applications
- Insulating Bushings And Spacers
- Support Tubes In Electrical Equipment
- Protective Casings For Components
- Structural Insulating Supports
- PCB Mounting Sleeves
Whether you're in need of custom polymer molding or advanced rubber solutions, we offer top-quality, reliable products tailored for your industry.