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Norplex-Micarta BR70

Chemical Family
Phenols & Phenolics

BR70 is a red colored composite made from a 24 oz/sq. yd canvas which is passed through the treater twice to insure impregnation of the fibers and to obtain the resin content desired for optimal performance. The resin system is a phenolic with good impregnation qualities and cured hardness. BR70 is designed for highly loaded bearing applications, where the lubrication is provided by oil, water or a mixture.

Properties

Physical Form
Sheets

Product families

Applications

Industrial — Chemical & Industrial Manufacturing
  • Equipment & Parts
Automotive & Transportation — Transportation
  • Marine

Product Families

Composite Materials — Prepregs & Molding Compounds
  • Laminates

Other characteristics

End Uses
Marine Applications
Functions
Laminate
Polymer Name
Phenolic Compound
Reinforcement Material
Cotton
Note

1 This 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 0.500 inch

Markets
  • Automotive & Transportation
  • Industrial
Technology
Composite Materials
Composites End Use
Marine Applications
Material Features
  • Bearing Grade
  • Consistent Performance
  • Excellent Lubricity
  • High Hardness
Composite Materials Functions
Laminate

Technical data

Table 1 of 2

15 rows
CharacteristicValueUnitMethod
Bonding Strength (Condition A, *t₁)1043.3kgASTM D229
Bonding Strength (Condition D-48/50, *t₁)952.5kgASTM D229
Compressive Strength (Condition A, Flatwise, *t₁)251.7MpaASTM D695
Flexural Modulus (Conditon A, Crosswise, *t₁)7.1GpaASTM D790
Flexural Modulus (Conditon A, Lengthwise, *t₁)9.4GpaASTM D790
Flexural Strength (Conditon A, Crosswise, *t₁)93.8MpaASTM D790
Flexural Strength (Conditon A, Lengthwise, *t₁)139.3MpaASTM D790
Izod Impact Strength (Condition E-48/50, Crosswise, *t₁)1.51J/cmASTM D256
Izod Impact Strength (Condition E-48/50, Lengthwise,*t₁)3.39J/cmASTM D256
Moisture Absorption (Condition A, *t₁)0.06%ASTM D570
Rockwell Hardness (0.250" Build-up, *t₁)95M ScaleASTM D785
Shear Strength (Condition A, Perpendicular, *t₁)95.8MpaASTM D732

Table 2 of 2

4 rows
CharacteristicValueUnitMethod
Coefficient of Thermal Expansion (X-axis, *t₁)19.5 x10⁻⁶in/in/°CIPC-TM 650-2.4.24
Coefficient of Thermal Expansion (Y-axis, *t₁)27.6 x10⁻⁶in/in/°CIPC-TM 650-2.4.24
Flammability Rating (Condition A, *t₁)HBClassUL Bulletin 94
Temperature Index¹ (Mechanical, *t₁)125°CUL Bulletin 746b

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