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Phenolics are the result of polymerization between layers of paper, canvas, linen, or glass cloth impregnated with synthetic thermosetting resins. These industrial laminates are a popular alternative to acrylic, because of its high resistance to flexing.

The base material (paper, linen cotton, cotton canvas, or glass cloth) and resin combination used is dependent upon the intended application of the finished product. Physical strength, resiliency, ease and versatility of fabrication, and excellent electrical properties make phenolics useful as support components in a wide range of mechanical and electrical applications.

L/LE Cotton Linen Base Phenolic: Fine weave cotton linen and, like canvas phenolic, is known for it’s mechanical properties. The finer weave allows better machinability than provided by the “C” and “CE” grades. The “LE” grade has better electrical properties than the “L” grade. This grade is not recommended for primary insulation. Linen-based phenolics with enhanced mechanical properties are available in a variety of sheet, rod, and tube sizes.

Certifies to NEMA L per MIL-I-24768/15 TYPE FBI; NEMA LE per MIL-I-24768/13 TYPE FBE

Brand Names

Norplex-Micarta, Garolite

Emco Industrial Plastics doesn’t claim to represent all of the manufacturers or trade name products listed. This list is intended as a guide of typical materials available for purchase from Emco Industrial Plastics, Inc. For additional information, contact an Emco Industrial Plastics representative by filling out the form below.

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At a Glance

Generic Name
Phenolics, Cotton Linen Reinforced

Available In
Sheet, Rod, Tube

Certifications
NEMA L per MIL-I-24768/15 TYPE FBI; NEMA LE per MIL-I-24768/13 TYPE FBE

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Gallery

Technical Information

Stock Products Properties Applications Advantages Grades

Stock Products

TypeSizeLengthColor
Sheet 0.03″-10″ TH Up to 48″ x 96″; CTS Natural, Black
Rod 1/16″ – 6″ DIA Std. foot lengths; CTS Natural, Black
Tube Available

Give us your cut-to-size dimensions. We will precision-cut these plastics to your exact size. Additional sizes and colors available upon request.

Properties

Physical PropertiesUnitsASTMResults
Density lb/in³ D792 0.048
Water Absorption, 24 hrs % D570 1.8
Mechanical PropertiesUnitsASTMResults
Tensile Strength – Lengthwise psi D638 13000
Tensile Strength – Crosswise psi D638 9000
Flexural Strength – Lengthwise psi D790 22000
Flexural Strength – Crosswise psi D790 16000
Flexural Modulus – Lengthwise psi D790 1600000
Flexural Modulus – Crosswose psi D790 1200000
Compressive Strength psi D695 37000
Hardness, Rockwell R D785 M100
IZOD Impact Strength Notched – Lengthwise ft-lb/in D256 1.35
IZOD Impact Strength Notched – Crosshwise ft-lb/in D256 1.1
Thermal PropertiesUnitsASTMResults
Coefficient of Linear Thermal Expansion – Lengthwise (x 10⁻⁵in./in./°F) D696 1
Coefficient of Linear Thermal Expansion – Crosswise (x 10⁻⁵in./in./°F) D696 1.06
Max Operating Temp °F 285
Thermal Conductivity BTU-in/ft²-hr-°F C177 2.03
Flammability Rating UL94 H – B
Electrical PropertiesUnitsASTMResults
Dielectric Strength, 1/8″ th. V/mil D149 625 (LE)
Dielectric Constant @ 1 MHz D150 6
Dissipation Factor @ 1 MHz D150 0.045
Arc Resistance sec D493 15

NOTE: The property values presented above are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control. Contact us for manufacturers’ complete material property datasheets. All values at 73°F (23°C) unless otherwise noted.

Applications

  • Terminal boards
  • Bearings, gears
  • Gaskets, washers, spacers
  • Wear strips

Advantages

  • Strong and stiff
  • Outstanding electrical properties (electrical grades)
  • Excellent bearing and wear properties (bearing grades)
  • Good creep resistance
  • Dimensionally stable
  • High temperature grades available

Grades

  • Paper
  • Cotton Canvas
  • Cotton Linen
  • Glass
  • Nylon
  • Kevlar®
  • Teflon®

NOTE: Several grades of this material are available. For additional information regarding this plastic, contact your Emco Industrial Plastics representative or call 973-862-4148.

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