Phenolics and Phenolic Materials

What is Phenolic Material

Phenolics are an industrial plastic that have a number of industrial applications. They are typically used for insulation and electrical applications. Phenolic material is also commonly used as a sealant, and a substitute to acrylic since it is cheap to produce and simple to work with.

Phenolic plastic is created from a mixture of different substances such as silicone, phenolic, melamine and other materials using heat and pressure. Phenolic plastic has phenomenal resistance to heat, stress, and certain corrosive chemicals. They benefit from having high rigidity and strength made possible by a reinforcing agent.


In addition to its machinability, phenolic material also has low water absorption and dissipation factors, resistance to corrosion for a number of chemicals, and superior electrical characteristics exhibited over a wide range of temperatures and humidity.

These material qualities make phenolics ideal for use in a wide variety of fabricated parts. In addition, by using special flame retardant epoxy resins, phenolic materials can be given superior flame resistance.

For the same usage, phenolic plastic materials are typically more affordable than thermoplastic materials. Phenolic polymers are physically tougher than aluminum and can resist wear, pressure, heat, and material degradation while carrying almost 1/2 as much weight.

Denver Rubber Company offers a wide variety of phenolic sheet including:

  • XX
  • CE
  • LE
  • G-10

Phenolic sheets are available in varying gauges and sizes ranging from 36” x 48” to 48” x 120”. We also carry phenolic rod and tubing with varying diameters and wall thicknesses and in lengths up to 48”.



Denver Rubber Company can meet your phenolic needs for a wide variety of applications. Phenolic plastics are a popular material choice for many uses due to their superior tensile, bending, and impact strength. Common applications for phenolics include:

  • Terminal boards
  • Antenna insulators
  • Printed circuit boards
  • Washers
  • Spacers
  • Cams
  • Inserts
  • Bushings
  • Gaskets
  • Rings
  • Collars
  • Switch gears
  • Protection from violent storm or ballistics
  • Textile bobbins
  • Lap spools

Phenolics are also used for structural parts that require good impact strength or where size-to-strength ratio is critical.



Since 1972, Denver Rubber Company has offered expert design and implementation services. Our design experts will assist you in selecting the appropriate material for your applications.

Our full-service support includes:

  • Initial design
  • Conceptual drawings
  • Design prototypes
  • Tooling acquisition
  • High-volume production.


Our extensive inventory of phenolic materials assures a quick turn-around in most applications. And our ISO 9001:2015 certification ensures high-quality products every time.

Whether you’re an experienced engineer and equipment designer or a rookie, the experts at Denver Rubber Company have the skills and knowledge to ensure a smooth, worry-free process.

Contact us today to learn how we can help you with your next project.

We offer a full range of plastic materials to meet your needs, when you need it.

Have Questions? Contact Us Today!