CastSil HIGH-STRENGTH MOULDING RUBBER (Two Part Polyurethane Elastomer)

Operating Environment

• Indoor Temperature: 25°C
• Humidity: 60%-70%

Resin Types

• A Resin: Liquid, Translucent Yellow
• B Resin: Liquid, Clear

Operating Steps

1. Preheat the Master Mold: Heat the mold to 50-60 degrees Celsius and apply a release agent.
2. Mix Resin A and B: Measure A and B resins according to the ratio, mix well, then vacuum for 90-120 seconds.
3. Pour into Mold: Slowly pour the vacuumed mixture into the prepared mold.
4. Curing: After the reaction, place in an oven at 80-100 degrees Celsius and cure for 1 hour.

Technical Parameters

• Weight Ratio:

  • A : B = 100:140  by weight (CastSil 2002)
  • A : B = 100:100  by weight (CastSil 6502)

• Reaction Time: 5 minutes (at 40°C)

• Hardness: 20 (CastSil 2002), 65 (CastSil 6502)

• Tear Resistance: OK

• Color: Translucent Yellow

• Shrinkage Rate: 0.3%-0.6%