VFI®-3151 50 A MDI Molding Rubber

VFI®-3151 50 A MDI Molding Rubber is a 50 A hardness urethane rubber that provides high durability and flexibility. With the ability to maintain a thin viscosity long into its pot life, VFI-3151 allows for intricate parts to be poured with consistently thin material and large parts to be poured quickly. Maintaining a low viscosity allows VFI-3151 Molding Rubber to dissipate air bubbles with and without vacuum degassing depending on application.

50 A MDI mold making rubber with a slow pot life for easier mixing and a low viscosity for easier pouring.

Application Methods:

  • Pour

Available Packaging:

  • Tote
  • Drum
  • 5 Gallon
  • 1 Gallon

Physical Properties

  • Hardness Shore A: 50
  • Hardness Shore D: n/a
  • Tensile Strength: 730 psi
  • Elongation: 835.00%
  • Tear Strength: 60 pli
  • Solid Material Density: 26.16 (in3/lb)
  • Dimensional Stability: <0.001%

Liquid Properties

  • Solids by Weight: 100.00%
  • Solids by Volume: 100.00%
  • Liquid Density A Side: 8.98 lbs/gal
  • Liquid Density B Side: 8.66 lbs/gal
  • Mixed Liquid Density: 8.82 lbs/gal
  • Specific Gravity A Side: 1.08 g/ml
  • Specific Gravity B Side: 1.04 g/ml
  • Specific Gravity Mixed: 1.06 g/ml
  • Ratio by Volume (A:B): 1A:1B
  • Ratio by Weight (A:B): 100 A : 96.4 B
  • Solids by Volume A Side: 100.00%
  • Solids by Volume B Side: 100.00%
  • Mixed Solids By Volume: 100.00%
  • Viscosity A Side: 6700 cps
  • Viscosity B Side: 1200 cps
  • Mixed Viscosity: 2600 cps
  • Pot Life: 30 min
  • De-mold Time: 16 hours

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