Initial mold design and polish

Discussion in 'Boatbuilding' started by LowelandSystem, Jan 15, 2016.

  1. LowelandSystem
    Joined: Nov 2015
    Posts: 69
    Likes: 2, Points: 8, Legacy Rep: 47
    Location: bANGLADESH

    LowelandSystem Junior Member

    Hi,
    Can any body suggest me about a procedure that I am working on. Instead using clay model I have made a boat panel from pvc board and colored it with gelcoat. Later I will sand and polish into a glossy finish when the gel coat cures. I tested on fiberglass sheet outcome, finishing is quite smooth not glossy though. Then I want to to make the first production negative mold with the dice. And another question is it ok to use silicon spray instead of bees wax as mold release... thank you.:)
     
  2. gonzo
    Joined: Aug 2002
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    Location: Milwaukee, WI

    gonzo Senior Member

    Silicone spray will cause a lot of troubles. Use demolding wax. There are some that are waterborne and have a small silicone content.
     
  3. LowelandSystem
    Joined: Nov 2015
    Posts: 69
    Likes: 2, Points: 8, Legacy Rep: 47
    Location: bANGLADESH

    LowelandSystem Junior Member

    Can I use Polyvinyl alcohol eye drop as substitute, as pva real agent cant be found in my country.
     
  4. gonzo
    Joined: Aug 2002
    Posts: 13,529
    Likes: 365, Points: 93, Legacy Rep: 2031
    Location: Milwaukee, WI

    gonzo Senior Member


  5. LowelandSystem
    Joined: Nov 2015
    Posts: 69
    Likes: 2, Points: 8, Legacy Rep: 47
    Location: bANGLADESH

    LowelandSystem Junior Member

    Thanks a lot :)
     
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