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Several grades of paper are available for fabricated parts

Paper (X, XX, XXX, XP)

  • Withstands continuous operating temperature of 250° F (X)
  • Impact resistant (X)
  • Exceptional compressive, tensile
    and flexural strength (X)
  • Good dielectric strength and properties (XX)
  • Moisture-resistant (XX and XXX)
  • High dielectric strength (XXX)


Grade X paper is a durable, low-cost laminate with good compressive, tensile and flexural strength. Grade XX is suitable for general purpose electrical applications. It has good mechanical properties and excellent moisture resistance. Grade XXX is a cost-effective laminate with good mechanical properties, high dielectric strength and good moisture resistance. All are available in punching grades.


  • Tooling plates (X)
  • Router and fabricating equipment tabletops (X)
  • Terminal boards (XX)
  • Instrument housing (XX)
  • Insulation for X-ray (XX)
  • Insulating washers (XXX)
  • Sleeves, switch bases and panel boards (XXX)


Our application engineers can help. With decades of experience in plastic material selection, we'll help you choose the optimal plastic for your application and budget.


To compare
the cost of this material to other thermosets, click here.

General Material Properties

Property   Metric units   English units
Compressive Strength   1.7e8 - 3.4e8 Pa   25000 - 49000 psi
Tensile Strength   9.3e7 - 1.7e8 Pa   13.5 - 25.5 psi
Hardness (Rockwell M)   75 - 105     75 - 105 
Flexural Strength   1.31e8 - 2.34e8 Pa   19000 - 34000psi
Impact Strength (notched)   0.27 - 0.44 J/cm   0.5 - 0.82 ft.lbf/in
Young's Modulus   6.89e9 - 1.3e10 Pa   1.0 - 1.9 10^6 psi
Max Service Temperature   130 - 140 °C   266 - 284 °F
Insulator or Conductor   Insulator   Insulator
Thermal Expansion Coefficent   9.97e-5 - 1.2e-4cm./cm.°C   55.4 - 66.2in./in./°F*10^-6

The information on this page is intended as general guidance only and is only accurate at the time of posting (see date below). Specific material properties vary by manufacturer. Please contact a Dielectric application engineer for help in choosing the optimal material for your application and budget.

Posting Date: September 10, 2012