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FR4 CNC Machining

FR4 is an electrical-grade, dielectric fiberglass laminate epoxy resin system incorporated with a glass substrate.

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FR4 CNC Machining

Constructed of an epoxy material with fiberglass textile support, also called epoxy-grade industrial laminate and phenolic, this product supplies high strength and reduced wetness absorption. FR4 and G10 are glass fiber-reinforced epoxy resin materials.

FR4 is an electrical-grade, dielectric fiberglass laminate epoxy resin system incorporated with a glass material substratum. The difference between G10 and FR4 is that FR4 is a fire-retardant quality of G10 and it can be safely replaced when G10 is called out. It has extremely high mechanical strength, excellent dielectric loss buildings, and excellent electrical toughness residential properties, both damp and completely dry.

FR4 is widely used in the production of PCBs for devices such as computers, mobile phones, automotive electronics, and many other electronic systems where a reliable and durable substrate is essential for the proper functioning of the electronic circuitry.

FR4 Properties

Ultimate tensile strength Yield strength Young’s modulus (modulus of elasticity) Elongation at break Hardness UV resistance Application
FR4 240 – 310 MPa 12 – 27 GPa 0.008 – 0.01 % 100 – 110 HRM Good Structuralapplications Electrical applications PC boards Learn More

FR4 CNC Machining Surface Finishes

FR4 CNC Machining Gallery

Cost-saving Design Tips

To reduce costs, limit part setups numbers, inspection dimensions or tight tolerances numbers, and deep pockets with small radii.

FR4 CNC Machining FAQs

The difference between G10 and FR4 is that FR4 is a fire-retardant grade of G10 and it can be safely substituted when G10 is called out.

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