Building a plug & mold

Discussion in 'Fiberglass and Composite Boat Building' started by Itchy, Feb 21, 2007.

  1. Itchy
    Joined: Oct 2006
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    Location: MI

    Itchy Junior Member

    Where can I get info or a link on building a plug and mold or a fiberglass boat hull and deck?
    I'm looking for a "how to" step by step process.
    I've worked on and restored many boats but never built one from start to finish and would like to build a very limited production, small power boat.

    Thanks
     
  2. rturbett
    Joined: Aug 2005
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    Location: FINGER LAKES, NY

    rturbett Senior Member

    Itchy- let me know if you would like info on what NOT to do when making a male mold. I'm an expert there!
    In my limited experience, I would definitely say that making a plug and female mold would be the way to go if you plan on making more than 2 hulls.
    My arms are sore from longboarding to try to get a smooth finish on a hull built off of a male mold.
    Rob
     
  3. Itchy
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    Itchy Junior Member

    Info on what not to do would be just as valuable. What type of boat are you building?
    Any info at all is very much appreciated
     
  4. rturbett
    Joined: Aug 2005
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    rturbett Senior Member

    Building a shark catamaran. Many of my mistakes were in building a male mold with not enough "Beef" . Whimpy often means warping. Build it with the right materiels the first time, and you will save a lot in the long run.
    Rob
     
  5. fiberglass jack
    Joined: Dec 2005
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    fiberglass jack Senior Member

    A plug is a excact replica or prototype of the finsh boat you will spend most of your time on the plug ,get it right and defects will transfare to the mould and every boat will have your signature on it,
     
  6. Itchy
    Joined: Oct 2006
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    Itchy Junior Member

    Thanks for all the info. I'm really looking for some pics and info on the process of building the plug. I've got the basics down but trying to get all the info I can before starting on a big project like this. Also trying to keep the trial and error to a min.
     
  7. dereksireci
    Joined: Jun 2004
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    Location: South Carolina

    dereksireci Senior Member

    Cook Composites & Polymers publishes the "Composites Application Guide"

    You need part 8 on tooling.


    In Part Eight
    Chapter I. Introduction
    Chapter II. The Master Model (plug)
    Chapter II. Master Model Preparation
    Chapter IV. Applying Release Wax to Models and Molds
    Chapter V. Building a Mold
    Chapter VI. Mold Surface Distortion
    Chapter VII. Mold Break-In Procedures
    Chapter VIII. Mold Maintenance
    Chapter IX. Mold Resurfacing
    Chapter X. Mold Storage
    Chapter XI. Special Precautions

    djs
     
  8. Itchy
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    Itchy Junior Member

    Where would I find that book?
     
  9. dereksireci
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    Location: South Carolina

    dereksireci Senior Member

  10. Itchy
    Joined: Oct 2006
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    Itchy Junior Member

    dereksireci- nice link. I appreciate the all help
    Did you get my email?
     
  11. ondarvr
    Joined: Dec 2005
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    Location: Monroe WA

    ondarvr Senior Member

    The Cook Book is also on CD, if you give me your email address I'll try to send it to you. You'll need a high speed connection though, it's big.
     
  12. Itchy
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    Itchy Junior Member

  13. dberr
    Joined: Mar 2007
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    Location: Toronto

    dberr Junior Member

    The Cook Book

    Hello,
    I have been reading this forum for several weeks. Lots of great information here. I build and repair inflatables and RIBs in Toronto. I am always interested in learning more about composites. I can't find any reference to the Cook book on their website and none of my suppliers are aware of it.

    Can I ask for a copy via email too?

    Thanks, DB
     
  14. ondarvr
    Joined: Dec 2005
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    Location: Monroe WA

    ondarvr Senior Member

    dberr

    They are very expensive to publish and hard to come by, only good customers get them for free (book form), the CDs are handed out more freely and Composites One might be able to get you one. Just looked, you're in Toronto, so it would be Progress Plastics. I don't have any books left myself, and only a few CDs, but I do have an order in for some.
     

  15. dberr
    Joined: Mar 2007
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    dberr Junior Member

    Ondarvr,

    Thanks. I'll contact Progress Plastics.

    DB
     
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