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Norplex-Micarta MC223

Grade MC223 is a medium weave cotton phenolic composite. Typical applications include pintle and stave-type bearings for rudder shafts in the marine industry. This material is known industry wide as “Marine Micarta.” This product is also suitable for heavy equipment applications that require finer machining profiles than those provided by bearing-grade laminates.

Polymer Name: Phenolic Compound

Reinforcement Material: Cotton

Physical Form: Sheets

Density: 1440.0 - 1440.0 kg/m³

Features: Bearing Grade

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Knowde Enhanced TDS

Identification & Functionality

Chemical Family
Fillers Included
Polymer Name
Reinforcement Material

Features & Benefits

Materials Features

Applications & Uses

Properties

Physical Form
Physical Properties
ValueUnitsTest Method / Conditions
Bonding Strength (Condition A, *t₂)771.1kgASTM D229
Compressive Strength (Condition A, Flatwise, *t₁)262MpaASTM D695
Flexural Strength (Conditon A, Lengthwise, *t₁)124.1MpaASTM D790
Izod Impact Strength (Condition E-48/50, Crosswise, *t₂)0.64J/cmASTM D256
Izod Impact Strength (Condition E-48/50, Lengthwise,*t₂)1.07J/cmASTM D256
Moisture Absorption (Condition A, *t₁)1.2%ASTM D570
Rockwell Hardness (0.250" Build-up, *t₁)105M ScaleASTM D785
Rockwell Hardness (0.250" Build-up, *t₂)105M ScaleASTM D785
Shear Strength (Condition A, Perpendicular, *t₁)89.6MpaASTM D732
Specific Gravity (*t₂)1.44ASTM D792
Tensile Strength (Conditon A, Lengthwise, *t₁)82.7MpaASTM D638
Thermal Properties
ValueUnitsTest Method / Conditions
Flammability Vertical (Condition A, *t₁)HBClassUL Bulletin 94
Temperature Index¹ (Mechanical, *t₁, *t₂)125°CUL Bulletin 746b
Note
  • 1This temperature is a recommendation only, and based upon experience in various applications. The maximum operating temperature is dependent upon the application and should be investigated prior to use.
  • *t₁= Thickness tested at 0.125 inch
  • *t₂= Thickness tested at 0.500 inch

Regulatory & Compliance

Quality Standards