High-Performance FR-4/G10 Epoxy Glass Fiber Sheets & Rods

Beeplastic supplies high-quality FR-4 and G-10 materials in a variety of standard stock shapes, including versatile sheets and solid rods. These raw forms serve as the foundation for your custom-machined parts or can be ordered in standard sizes for your own fabrication needs.

FR-4 & G-10 Glass Epoxy Sheets

Our rigid laminate sheets are the ideal substrate for a vast range of machined components, known for their stability and robustness.

• Material Grades & Colors: Offered in both flame-retardant FR-4 (typically light green) for safety-critical applications, and high-strength G-10 (natural yellow-green & black) for applications where maximum mechanical performance is the priority.

• Consistent Thickness & Precision Tolerances: We supply a comprehensive range of board thicknesses suitable for any application. Every sheet is held to strict thickness tolerances, ensuring material consistency that is critical for precise CNC machining setups and predictable final part accuracy.

• Standard Sheets & Custom Cut-to-Size Panels: Whether your project requires a full standard-sized sheet or you need precision cut-to-size panels for specific components or prototypes, we provide flexible solutions. Our cut-to-size service minimizes your material waste and reduces your in-house preparation time.

• Key Applications for Sheet-Based Parts: The perfect starting point for machining flat insulating plates, robust structural supports, non-conductive PCB test fixtures, terminal boards, and many other two-dimensional or three-dimensional components.

Solid FR-4 & G-10 Rods

Our solid FR-4 and G-10 rods offer immense strength, rigidity, and excellent insulating properties, making them perfect for turning and lathing into robust, durable cylindrical parts.

• Material Options: Available in both standard G-10 for maximum mechanical durability and flame-retardant FR-4 for applications requiring verified safety compliance.

• Full Diameter Range with Excellent Straightness: Our solid rods are available in a full spectrum of industry-standard diameters. We pride ourselves on the excellent concentricity and straightness of our stock, which is essential for **minimizing vibration and run-out during high-speed lathing operations** and ensuring the highest quality turned parts.

• Standard & Custom Lengths: While sold in standard lengths, we can also supply custom-cut rod lengths to precisely match your part requirements, reducing your material waste and cycle times.

• Key Applications for Rod-Based Parts: Ideal starting stock for machining custom dowels, high-strength shafts, non-conductive insulating spacers and standoffs, durable tool handles, and other high-performance cylindrical components.

Looking for a specific size or thickness not listed? Beeplastic can provide custom-cut materials to meet your exact needs. Contact Us With Your Requirements →

Our Expert FR-4 & G-10 Machining Services

Machining glass-epoxy composites like FR-4 and G-10 requires a specialized approach that goes beyond standard plastic fabrication. At Beeplastic, we have honed our processes to handle the abrasive nature of these materials, preventing delamination and achieving exceptional precision. We transform raw FR-4 and G-10 sheets, rods, and tubes into fully-finished, high-performance components ready for your most critical applications.

Precision CNC Milling & Routing for Complex Geometries

Our multi-axis CNC milling centers are the cornerstone of our FR-4 and G-10 fabrication services. We utilize specialized diamond-coated and carbide tooling to accurately machine intricate 2D and 3D geometries. By optimizing cutting speeds, feed rates, and using robust dust extraction systems, we deliver parts with clean, sharp edges and superior surface finishes, free from chipping or material stress.

• Key Applications for Milled Parts:

  • Fabricating custom non-conductive PCB test fixtures and solder pallets with complex pockets and precise support features for the electronics industry.

  • Creating high-strength G-10 structural components and mounting plates for robotics, industrial machinery, and aerospace applications.

  • Milling durable insulating barriers and panels for high-voltage switchgear, power supplies, and electrical enclosures.

Tight-Tolerance Drilling, Tapping & Counterboring

Drilling into glass-reinforced laminates presents a significant challenge. Our advanced techniques and specialized drill bits ensure we produce clean, burr-free, and delamination-free holes every time. This precision is critical for any component requiring secure assembly and reliable performance.

• Key Applications for Drilled Parts:

  • Producing multi-hole FR-4 terminal boards and busbar insulators with exacting location accuracy for secure electrical connections.

  • Tapping clean, strong threads into G-10 knife handles, tooling, and fixtures to accommodate fasteners without compromising material integrity.

  • Creating precise counterbores and countersinks on insulating mounting plates for flush-fit screws and a professional final assembly.

CNC Turning & Lathing for Custom Rod Components

We transform solid FR-4 and G-10 rods into a wide variety of custom cylindrical components with demanding specifications. Our CNC lathes maintain excellent concentricity and can achieve tight diametrical tolerances, delivering parts that are perfectly balanced for both insulating and mechanical roles.

• Key Applications for Turned Parts:

  • Machining high-strength insulating spacers, standoffs, and protective sleeves for complex electronic and electrical assemblies.

  • Fabricating durable G-10 bushings and wear-resistant rollers for high-load mechanical systems where toughness is required.

Creating custom non-conductive shafts, dowels, and actuator components for specialized automated equipment.

Value-Added Finishing & Assembly Services

To provide a truly comprehensive solution, we offer a range of secondary operations to ensure your custom FR-4 and G-10 parts are fully finished and ready for immediate implementation into your project.

• Our Finishing Services Include:

  • Edge finishing, beveling, and chamfering to improve safety, handling, and aesthetics.

  • Surface sanding and polishing to meet specific texture or surface roughness requirements.

  • Part Marking & Engraving for permanent identification, serialization, or logos.

  • Simple sub-assembly services, such as the installation of threaded inserts or bonding of components.

Ready to Transform Your Design into a High-Performance FR-4 or G-10 Part?

You've seen our extensive fabrication capabilities, from precision CNC machining to creating parts with tight tolerances. Now, let our engineering team apply this expertise to your specific project. Whether you have a completed CAD file ready for quotation or technical questions about material selection and design for manufacturability (DFM), we are here to provide a fast and comprehensive response.

Let's move your project forward.

【 GET A DETAILED QUOTE 】【 DISCUSS WITH AN ENGINEER 】

All inquiries are confidential. NDA available upon request.

Explore Our Full Spectrum of Engineering & High-Performance Plastics

Beyond our expertise in thermoset composites like FR-4 and G-10, Beeplastic is your comprehensive partner for the precision machining of a wide array of advanced thermoplastics. Our deep understanding of each material's unique properties ensures we can deliver components that meet the most demanding mechanical, thermal, and chemical performance requirements.

Below is a highlight of some of the popular materials we fabricate. For a complete overview, please visit our main materials section.

This is just a snapshot of our capabilities. We also regularly work with a full range of materials including ABS, HDPE, PET, PTFE, PU, PVC and more.