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Description
This premium FR4-HF glass epoxy green sheet is a high-performance laminate engineered for demanding electrical, electronic and mechanical applications. Manufactured from woven glass cloth impregnated with an epoxy resin system, it delivers excellent electrical insulation, mechanical strength and dimensional stability in a compact, machinable sheet format.
Ideal for use in switchgear, transformers, PCBs, jigs, fixtures and structural insulating components, this halogen-free FR4 material combines flame retardancy with reliable long-term performance. Available in a range of practical thicknesses and two standard sheet widths, it provides a versatile solution for precision engineering, fabrication and electrical insulation projects.
Product Features
- Material: FR4-HF glass-reinforced epoxy laminate in a distinctive green finish for easy identification.
- Thickness options from 0.2 mm, 0.4 mm, 0.8 mm, 1 mm and 1.5 mm, plus additional thicker grades to suit varied design requirements.
- Standard sheet length of 1070 mm for consistent yield and efficient cutting layouts.
- Two convenient sheet widths available: 615 mm for compact components and 1230 mm for larger panels and nested parts.
- High mechanical strength and rigidity, suitable for precision machining, drilling and profiling.
- Excellent electrical insulating properties, supporting use in low to high-voltage insulation assemblies.
- Halogen-free flame-retardant system that supports compliance with modern environmental and safety expectations.
Key Features and Benefits
- Reliable electrical insulation performance helps protect sensitive components and reduces the risk of tracking or breakdown in demanding installations.
- Outstanding mechanical strength and dimensional stability support tight tolerances and consistent fit in complex engineered assemblies.
- Halogen-free flame-retardant formulation assists with safer material selection where reduced smoke and corrosive gas evolution are desired.
- Good machinability allows sheets to be cut, drilled and milled using standard workshop equipment, reducing production time and tooling costs.
- Wide choice of thicknesses and sheet widths maximises material utilisation and minimises waste across different part sizes.
- Durable, moisture-resistant construction offers long service life, even in challenging industrial and electrical environments.
Specifications
| Specification | Detail |
|---|---|
| Material type | FR4-HF glass fibre reinforced epoxy laminate (halogen-free) |
| Colour | Green |
| Available thicknesses | 0.2 mm, 0.4 mm, 0.8 mm, 1.0 mm, 1.5 mm (plus 6 additional thicker options) |
| Sheet length | 1070 mm (nominal) |
| Sheet widths | 615 mm or 1230 mm |
| Typical applications | Electrical insulation, structural panels, mounting plates, spacers and engineering components |
Applications and Ideal Uses
This FR4-HF glass epoxy sheet is suited to a wide range of electrical, electronic and mechanical engineering tasks where high insulation performance and strength are essential.
- Insulating panels, barriers and mounting plates in switchboards, control panels and distribution equipment.
- Mechanical support plates, spacers and fixtures for transformers, motors and power electronics.
- Prototype and support substrates for PCB assemblies, testing jigs and fixtures.
- Precision-machined engineering parts, wear plates and structural components in equipment and machinery.
- Insulating components in instrumentation, telecommunications and industrial automation systems.
Frequently Asked Questions
Can this FR4-HF glass epoxy sheet be machined using standard workshop tools?
Yes. The sheet can be cut, drilled and machined with common workshop tools such as saws, routers and drills fitted with suitable tooling for composites. Dust extraction and appropriate personal protective equipment are recommended when machining.
Is this FR4-HF sheet suitable for use in high-voltage electrical insulation applications?
The material offers excellent electrical insulating properties and is widely used in low to high-voltage insulation structures. Always confirm the specific dielectric strength and clearance/creepage requirements of your application against the relevant standards before use.
How do I choose the right thickness and sheet width for my project?
Select the thickness based on the required mechanical strength, stiffness and available installation space, using thinner sheets for light-duty insulation and thicker grades for structural or load-bearing parts. Choose between the 615 mm and 1230 mm sheet widths to optimise yield and minimise offcuts when nesting your part geometry.