5mm Black Bakelite Sheet – Heat-Resistant Phenolic Insulator for Switchboards & Industrial Use

5mm Black Bakelite Sheet – Heat-Resistant Phenolic Insulation Board for CNC & Electrical Applications

Upgrade your industrial and electrical projects with our 5mm Black Bakelite Sheet, crafted from high-quality phenolic resin to deliver outstanding electrical insulation, thermal resistance, and mechanical durability. Whether you’re building switchboards, insulating high-voltage panels, or fabricating precision CNC components, this board offers the reliability and performance that professionals demand.

Why Choose Our 5mm Phenolic Resin Insulation Board?

Our black Bakelite sheet is a heavy-duty insulation plate designed for high-temperature, high-voltage, and high-performance applications. With precision 5mm (3/16") thickness, this phenolic board is ideal for:

• Electrical control panels

• Switchboards & transformers

• CNC-machined insulator parts

• Industrial support bases

• Heat shields & spacers

Engineered with B2B performance in mind, we support custom dimensions, large-quantity orders, and technical guidance, helping you reduce lead time and sourcing costs.

Product Features and Benefits

✔️ Feature – 5mm Bakelite (Phenolic Resin) Sheet
High-quality phenolic laminate with consistent thickness and tight tolerances for precision engineering tasks.

✔️ Advantage – Superior Insulation & Heat Resistance
Rated for excellent dielectric strength and capable of withstanding continuous high temperatures—perfect for demanding electrical and thermal environments.

✔️ Benefit – Reduce Failures & Increase Longevity
With this board’s mechanical stability and thermal resilience, you lower maintenance costs, avoid breakdowns, and protect your systems with confidence.

Available Sizes with Imperial Conversion

Choose from 3 standard formats. All variants are 5mm thick (≈ 3/16"):

• 5×100×100mm (≈ 3/16" × 4" × 4")

• 5×250×250mm (≈ 3/16" × 9.8" × 9.8")

• 5×250×500mm (≈ 3/16" × 9.8" × 19.7")

Need other sizes or thicknesses? We support custom-cut Bakelite boards. Just click below to request your quote.

Technical Specifications

Frequently Asked Questions (FAQ)

Q1: Is this 5mm phenolic board suitable for CNC machining?
Yes, it machines cleanly with CNC routers, drills, and mills. Ideal for making insulator parts, spacers, and panels.

Q2: Can you provide custom sizes or drilled holes?
Absolutely. We support laser cutting, CNC engraving, and fully customized dimensions based on your drawing or specification.

Q3: Is the board heat-resistant and flame-retardant?
Yes. Bakelite is naturally flame-resistant and works in temperatures up to 130°C, making it suitable for thermal barrier applications.

Q4: What is the minimum order quantity for custom work?
There’s no strict minimum. Contact us to discuss your project—we tailor our services to your needs, whether you're prototyping or mass-producing.

What Makes BeePlastic Your Trusted Supplier?

At BeePlastic, we’re not just selling plastic—we’re solving problems for engineers, manufacturers, and sourcing teams worldwide:

• ✅ Over 100 plastic materials available

• ✅ Custom fabrication with laser/CNC/UV services

• ✅ Free standard global shipping

• ✅ 15+ years in industrial plastics supply

• ✅ Dedicated support team & engineering expertise

• ✅ Flexible MOQs & competitive pricing to save your costs

We're committed to making your job easier—with fast response, accurate cuts, and long-term reliability.

Order Now or Request Custom Quote

✅ Ready to Buy?

Choose your preferred size and click "Add to Cart" to order directly. All sheets are precision-cut and safely packed for worldwide delivery.

✂️ Need Custom Size or Machining?

[Contact us now] for a free quote. We offer fast turnaround, engineering consultation, and cost-effective customization—all designed to make your work easier.

Let us handle the cutting, shaping, and technical complexity—you focus on building better systems.