What Is FR4 Part
FR4 is a widely used flame-retardant fiberglass-reinforced epoxy laminate, known for its excellent electrical insulation and mechanical strength. FR4 parts produced by CNC machining offer reliability in electronics, aerospace, and automotive applications. They provide high resistance to heat, moisture, and chemicals, making FR4 a versatile engineering material for demanding environments.

FR4 Material Properties
| Property | Description |
|---|---|
| Composition | Epoxy resin with woven fiberglass |
| Dielectric Strength | High electrical insulation |
| Flame Retardant | Meets UL94 V-0 standard |
| Moisture Resistance | Low water absorption |
| Mechanical Strength | High rigidity and hardness |
| Thermal Stability | Operating temps up to 130°C |

Applications
Our CNC-machined FR4 parts are ideal for electronic circuit boards, insulators, switchgear, and mechanical supports. They are commonly utilized in telecommunications, automotive electronics, industrial machinery, and aerospace components, providing insulation and structural support in demanding conditions. These parts enhance product safety and longevity.
Surface Treatments
ANEBON offers various surface finishes for FR4 parts, including smooth milled, sanded, and custom coatings like conformal coating for enhanced moisture resistance. We ensure precision surface quality to improve part adhesion, electrical insulation, and aesthetic appeal, tailoring to your project requirements.

Our Advantages
With ISO9001 certification, ANEBON guarantees stringent quality management in CNC machining processes. We use advanced equipment and thorough quality inspections to deliver precision FR4 parts. Our flexible production scales accommodate prototype to mass production, providing efficient lead times and competitive pricing without compromising quality.



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Frequently Asked Questions
Q: What industries commonly use FR4 parts?
A: Electronics, automotive, aerospace, and industrial machinery.
Q: Can FR4 parts withstand high temperatures?
A: Yes, up to about 130°C continuous operating temperature.
Q: Are custom sizes available for FR4 CNC machining?
A: Absolutely, we customize dimensions to meet your specifications.
Q: Is FR4 resistant to moisture and chemicals?
A: Yes, it has excellent resistance to both moisture and many chemicals.
Q: What quality certifications does ANEBON have?
A: We are certified under ISO9001 quality management standards.