VFI®-178 90 A Polyurethane Casting Rubber

VFI®-178 90 A Polyurethane Casting Rubber is a fast setting, 90 A hardness, high durability rubber with good rebound properties to create a versatile urethane rubber. A high amine content gives good chemical resistance and low temperature flexibility for increased use and durability through multiple cycles. VFI-178’s fast set capabilities allows for a quick demold time and increased part production rate. A low viscosity allows for increased part sizes while maintaining final properties.

90 A fast setting two-part urethane rubber part that has good elongation and tensile strength that allows for varying part sizes.

Application Methods:

  • Inject
  • Pour

Available Packaging:

  • Tote
  • Drum
  • 5 Gallon
  • 1 Gallon

Physical Properties

  • Hardness Shore A: 91
  • Hardness Shore D: 39
  • Tensile Strength: 2711 psi
  • Elongation: 630.00%
  • Tear Strength: 408 pli
  • Yield Strength: 812 psi
  • Elastic Modulus: 3821 psi
  • Permanent Set: 32.00%
  • Shrinkage: 0.50%

Liquid Properties

  • Solids by Weight: 100.00%
  • Solids by Volume: 100.00%
  • Liquid Density A Side: 9.1 lbs/gal
  • Liquid Density B Side: 9.02 lbs/gal
  • Mixed Liquid Density: 9.00 lbs/gal
  • Specific Gravity A Side: 1.09 g/ml
  • Specific Gravity B Side: 1.08 g/ml
  • Specific Gravity Mixed: 1.08 g/ml
  • Ratio by Volume (A:B): 1A:1B
  • Viscosity A Side: 1200 cps
  • Viscosity B Side: 1250 cps
  • Gel Time: 3.5 minutes
  • De-mold Time: 20 minutes
  • Full Cure: 10 days
  • VOC: 0

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