How to Make a Brush-On Mold with Mold Shell [Part II]

Part I of this video tutorial demonstrates how to make a brush-on mold using tin-cured silicone rubber (TinSil® 80-30).

In Part II, we complete the project with the following:

  • mold shell construction (using Poly 1512X polyurethane plastic) 
  • cutting the mold 
  • how to make a plastic casting using a rotational casting machine (using EasyFlo 120 polyurethane plastic)
  • The Steps in Part I of this tutorial:

    1. Establish Pour Hole 

    2. Weigh & Mix Rubber for First Layer of Mold 

    3. Brush-On First Layer of Mold 

    4. Weigh, Mix & Brush-On Second Layer of Mold 

    5. In the Meantime, Cast Rubber Pieces for Parting Line & Keys 

    6. Weigh, Mix & Brush-On Third Layer of Rubber 

    7. Weigh, Mix & Brush-on Final Layer of Rubber 

    8. Create Thick Parting Line

    The Steps in Part II of this tutorial:

    9. Construct Mold Shell 

    10. Remove Mold Shell 

    11. Cut Parting Line in Mold

    The Final Step: Rotational Casting with EasyFlo 120 Polyurethane Plastic

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