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Rulon Bearings
BJB Enterprises TC-878 A/B Rigid Polyurethane Casting System
Categories: Polymer; Thermoset; Polyurethane, TS

Material Notes: TC-878 A/B produces a high impact rigid 78 Shore D material with excellent heat resistance. This product is a clear casting system that is easy to tint or pigment. TC-878 A/B can be easily processed by hand or meter-mix dispense equipment.

Available Properties
  • Specific Gravity, Part B
  • Specific Gravity, Part A
  • Density, ASTM D792-00
  • Brookfield Viscosity, Part A
  • Brookfield Viscosity, Mixed Part A & Part B
  • Brookfield Viscosity, Part B
  • Linear Mold Shrinkage, 12”x ½” x ½”
  • Storage Temperature, Purge opened containers with dry nitrogen before re-sealing.
  • Hardness, Shore D, ASTM D2240-04e1
  • Tensile Strength, ASTM D638-03
  • Elongation at Break, ASTM D638-03
  • Tensile Modulus, ASTM D638-03
  • Flexural Strength, ASTM D790-03
  • Flexural Modulus, ASTM D790-03
  • Izod Impact, Notched, ASTM D256-05
  • Deflection Temperature at 0.46 MPa (66 psi), ASTM D648-04
  • Deflection Temperature at 1.8 MPa (264 psi), ASTM D648-04
  • Processing Temperature, Max cure temp.
  • Cure Time, Step 1 recommended high temp cure (as tested).
  • Cure Time, Step 2 recommended high temp cure (as tested).
  • Cure Time, Optional low temp cure
  • Working Life, 100 g.
  • Gel Time
  • Shelf Life, Stored at recommended temperatures.
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Ensinger PEI
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