FR4 G10 Epoxy Sheets – CNC Insulation Board (0.5–5mm) | Flame-Retardant Fiberglass Plate

🔧 FR4 G10 Fiberglass Insulation Sheets – 0.5mm to 5mm Thick (Light Green)

Upgrade your industrial insulation and electrical projects with our high-performance FR4 G10 fiberglass sheets. Made from flame-retardant epoxy resin reinforced with glass fiber, these light green panels offer outstanding mechanical strength, dimensional stability, and electrical insulation. Whether you're machining switchgear components or assembling transformer baseplates, our sheets deliver exceptional performance and easy workability.

⚙️ Key Features of Our FR4 G10 Epoxy Sheets

• Material: Industrial-grade G10 epoxy resin laminate reinforced with woven fiberglass cloth

• Color: Light green for improved visibility in installations

• Thickness Range: 0.5mm to 5mm (0.02" to 3/16")

• Sizes Available: From 100×100mm (4"×4") up to 500×300mm (19.7"×11.8")

• Processing Support: Easy to cut, drill, CNC mill, or laser engrave

• Applications: Perfect for electrical insulation, industrial support panels, structural base plates, and high-temperature gaskets

✅ Benefits That Help You Build Better

• High Electrical Insulation: Withstands high voltages and minimizes current leakage, making it ideal for PCBs, transformers, and switchboards

• Flame-Retardant and Heat-Resistant: Ensures safe performance in demanding environments, even under thermal stress

• Mechanical Strength: Provides high flexural strength for structural applications under mechanical load

• Dimensional Stability: Maintains shape and size during machining and temperature variation

• Versatile Use Cases: Works for electrical insulation, structural backing boards, equipment separation, and more

📐 Size and Thickness Options (Metric & Inch)

💡 Looking for a custom size or special thickness? We offer cut-to-size services with precise tolerances. Just reach out!

🔌 Typical Applications for FR4/G10 Sheets

• Electrical panel and cabinet insulation boards

• CNC-machined dielectric panels

• Transformer and motor baseplates

• High-temperature mechanical separator boards

• Structural spacers and washers in electronic equipment

• PCB substrate support and industrial flame-resistant backing sheets

💬 Frequently Asked Questions (FAQ)

Q1: Is this sheet safe for high-voltage applications?
Yes, FR4 G10 sheets provide excellent dielectric strength and are widely used in electrical insulation for transformers, PCB boards, and switchgear.

Q2: Can I machine these sheets with CNC or laser?
Absolutely. Our FR4 epoxy laminate is suitable for CNC milling, sawing, drilling, and even laser engraving with minimal risk of delamination.

Q3: Do you offer custom shapes or hole patterns?
Yes. We support precision CNC cutting, hole drilling, engraving, and custom shape fabrication based on your technical drawings.

Q4: How do FR4 and G10 differ?
Both use fiberglass and epoxy resin. G10 is preferred for mechanical strength, while FR4 adds flame retardance. Our sheets combine both properties.

Q5: Do you offer bulk pricing or OEM orders?
Yes. We support wholesale quantities, OEM customization, and long-term cooperation. Contact us for a custom quote.

🛠 Custom Solutions for Your Projects

At Custominsul, we go beyond just material supply. We offer:

• ✂️ Custom machining services – CNC, laser, drilling, engraving

• 📐 Free technical consulting – Helping you select the best size & thickness to reduce cost

• 🌍 Global shipping & responsive support – Fast handling and tracking available

🛒 Order Now or Get a Custom Quote

Select your size and thickness to add to cart now, or contact us for custom machining, large quantity discounts, or engineering assistance.

📦 Need a prototype or bulk production? Our team is ready to help you get the right FR4 G10 solution—fast, precise, and cost-effective.