Engineered BMC & Thermoset Composite Materials

Mar-Bal’s engineered BMC and thermoset composite materials have excellent performance characteristics which makes them well suited for a wide variety of applications. All standard grades can be injection, compression and transfer molded. In addition to the materials listed here, Mar-Bal’s material engineering team can customize a material to fit your application and meet your exact specifications.

Mar-Bal BMC Materials Properties and Product Selection

Mar-Bal BMC Materials Chart

Performance Characteristics

  • UL. Listed (Click for Link to UL Data Sheets, BMC Material)
  • FDA Approved
  • Automotive Approved
  • Flame Resistance
  • UV Resistance
  • Track Resistance
  • Heat Resistance
  • Excellent Dimensional Stability
  • Color Shift-Non-Yellowing Resistance
  • Chemical and Corrosion Resistance
  • ESD-Electrostatic Dissipation
  • U.L. Relative Thermal Index Rating Up to 160°C
  • Powder Coating and Paintable Materials

Mar-Bal Materials Designations

The first four digits of the designation represent the series.

The two digits after the series designate the glass percentage.


1000 Series
A general purpose material that is easily customized. Designed for Powder Coating and Electrostatic painting.

2000 Series
An excellent flame and track resistant material with excellent electrical and mechanical properties. Good dielectric strength and low shrink for close dimensional control.

3000 Series
A superior chemical resistant material with excellent flame and track resistance.

4000 Series
The high track resistant material. A flame retardant polyester molding compound with moderate strength and excellent electrical properties and exceptional arc and track resistance. Suitable for replacing porcelain in insulator and other electrical applications where higher track resistance is critical.

5500 Series
A superior heat resistant material. U.L. RTI rating of 160°C-170°C

How will your material be maintained and formed?
Now that you’ve selected your material for your product, what steps will Mar-Bal take to ensure its quality and in what form should you expect to receive it in?

Click to view Quality Maintenance and Product Forms.

*Values shown are based on standard tests on specified configurations and are offered as a guide. No other guarantee is implied. Characteristics are subject to variations as applied to a specific design. Except for any written warranties which may be given by Mar-Bal, Inc., no express or implied warranties are made, and ALL IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE EXPRESSLY DISCLAIMED. Buyers’ exclusive remedies are limited solely to repair or replacement of nonconforming goods, and CONSEQUENTIAL DAMAGES ARE EXCLUDED.

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