Phenolic

High-Performance Phenolic for Industrial Applications

Phenolic sheet and rod are high-strength industrial thermosets manufactured by impregnating layers of paper, cotton, or fabric with a phenolic resin and curing them under heat and pressure. The result is a rigid, durable material known for its excellent mechanical strength, electrical insulating properties, and resistance to heat, wear, and moisture.

At Piedmont Plastics, we offer a wide selection of industrial phenolics tailored for use in demanding environments across electrical, mechanical, and structural industries. Our phenolic materials are available in a variety of NEMA grades and configurations, including paper-based and cotton-based options to meet your specific application requirements.

Whether you need components for circuit boards, insulators, or mechanical parts, our phenolic sheet and rod products deliver proven performance. Trust Piedmont Plastics to provide reliable material solutions backed by expert guidance and nationwide availability. Contact us today to discuss your project needs or request a quote.

Key Features of Our Phenolic

• Wide Range of NEMA Grades: Paper grade phenolics (X, XX, XXX) and cotton grade phenolics (C, CE, L, LE) are each designed for specific mechanical and electrical performance needs.

• Exceptional Electrical Insulation: Phenolics are ideal for electrical applications due to their low conductivity and high dielectric strength, making them reliable insulators in high-voltage environments.

• High Mechanical Strength and Dimensional Stability: Cotton-based phenolic grades offer excellent load-bearing capabilities, making them suitable for structural components and high-stress industrial applications.

• Thermal and Moisture Resistance: As a thermoset plastic, phenolic resists heat and humidity without warping or degrading, providing reliable performance in demanding environments.

• Easy to Machine and Fabricate: Phenolic materials can be easily cut, drilled, milled, or turned using conventional tools, allowing for custom fabrication and precise part creation.

• Flame Retardant Options Available: Certain grades of phenolic are inherently flame resistant, making them a safe choice for applications where fire performance is a key requirement.

Applications of Phenolic Sheet and Rod

Phenolics can be found in many different industries and applications. Their versatility is highly regarded, especially for use in applications that require precision and electrical properties. Common uses of phenolic sheet and rod include:

• Electrical insulators and switchboards

• Terminal boards and arc barriers

• Gears, pulleys, and bushings

• Structural and mechanical components

• Fixtures and jigs in machining environments

• Transformer spacers and washers

• Automotive and aerospace assemblies

Additionally, phenolics are highly valued for their ability to provide protection against violent storms or ballistic forces. They are also utilized in textile bobbins, lap spools, and structural parts that demand excellent impact strength or where the size-to-strength ratio is of utmost importance.

Related Products - Industrial Laminates

• G-10 and FR4 – G-10 and FR4 are both made with woven glass fabric and an epoxy resin system. This grade offers consistent quality and excellent electrical properties in both dry and humid conditions. With its remarkable strength, impact resistance, and low water absorption, G-10 is well-suited for terminal boards, washers, sleeves, structural components, high temperature applications and more. Other epoxy grade of industrial laminates include G11 and FR5.

• GPO-3 - Known for its exceptional thermal and electrical insulation properties, GPO-3 is ideal for a wide range of applications in industries such as electrical engineering and aerospace. Its high resistance to heat and flame, coupled with excellent mechanical strength, ensures reliable performance in demanding environments.

Why Buy Phenolic Sheet and Rod from Piedmont Plastics?

At Piedmont Plastics, we offer more than just materials—we provide complete solutions designed to meet your industrial and electrical needs. Here’s why we are your trusted supplier of phenolic sheet and rod:

• Broad Product Selection: Our extensive inventory includes a wide range of phenolic sheets and rods, available in multiple NEMA grades and sizes to suit a variety of electrical, mechanical, and structural applications.

• Custom Cut and Fabrication Services: With advanced CNC cutting and fabrication capabilities, we deliver precision-machined phenolic parts tailored to your exact specifications for optimal performance.

• Proven Expertise: Backed by decades of industry experience, our knowledgeable team is ready to assist you in selecting the ideal phenolic material to meet the demands of your project.

• Multiple Locations: With a nationwide network of branches, Piedmont Plastics ensures that high-performance phenolic materials are readily available wherever your business operates.

• Uncompromised Quality: We are committed to delivering industrial thermoset materials that meet or exceed stringent industry standards, providing superior strength, insulation, and durability with every order.