FR-4 CNC Machining
Custom FR-4 parts CNC machined by RapidDirect for prototypes and production.
Explore FR-4 CNC MachiningFR-4 for Custom Parts
FR-4 is a composite made from woven fiberglass cloth and an epoxy resin binder. It combines mechanical strength, flame resistance, electrical insulation, and dimensional stability. RapidDirect CNC machines FR-4 Aqua Green and FR-4 Yellow for printed circuit boards, electrical insulators, aerospace components, and custom parts.
- Electrical insulation
- Flame resistance
- Mechanical strength
- Dimensional stability
FR-4 Overview
FR-4 is a composite made from woven fiberglass cloth and an epoxy resin binder. It combines mechanical strength, flame resistance, electrical insulation, and dimensional stability. RapidDirect CNC machines FR-4 Aqua Green and FR-4 Yellow for printed circuit boards, electrical insulators, aerospace components, and custom parts.
- Electrical insulation: FR-4 provides electrical insulation for circuit boards and electronic components.
- Flame resistance: Its flame-resistant properties support demanding electrical applications.
- Mechanical strength: The fiberglass reinforcement gives FR-4 strength and rigidity.
- Dimensional stability: FR-4 supports consistent performance in precision components.
Selection note: FR-4 is a glass-fiber-reinforced epoxy laminate rather than a melt-processable thermoplastic. CNC machining supports precise insulating panels, circuit board substrates, and custom electronic components.
Manufacturing Processes for FR-4
FR-4 Material Specifications
Mechanical Properties
| Tensile strength, yield | 340 MPa |
|---|---|
| Elongation at break | 2–3 % |
| Hardness | 110 Rockwell R |
| Heat deflection temperature | 150 °C |
Physical Properties
| Density | 1.85 g/cm³ |
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FR-4 Manufacturing Facilities
FR-4 Parts & Applications
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Explore FR-4 applications, properties, and CNC machining options.