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jknig Profile
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Cowl sculpting advice


I'm going to be making a mold of a sculpt soon and had a few questions. Has anyone used playdough as their parting line before? And also I was going to try regular plaster with plaster bandages to make it sturdy. I'm on a tight budget and trying to use what I have available. Anyone had success with regular plaster or should I wait until I can buy the good stuff?
8/30/2016, 10:27 pm Link to this post Send Email to jknig   Send PM to jknig
 
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Re: Cowl sculpting advice


As far as I remember the Playdough is not really stable, maybe terracotta clay (the brown, ready for use)will do a better job? Plaster Bandages can be expensive, you can use cotton textile patches instead and glass -fibers mixed into the plaster to make the mold more stable. The plaster may get hot, so its important that your sculpt is not made out of materials that can melt. (Plastiline or wax based clay) If you have the time to do more research then use it! YouTube has great tutorials and to use better materials is always wise because its very frustrating to destroy a nice sculpt because of bad choices.

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Bigbat23 Profile
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Re: Cowl sculpting advice


I would say wait till you can get some Ultracal 30. If it's plaster of Paris it may melt your clay before the plaster has a chance to set. Also playdough may not be sturdy enough to hold the plaster. Use cheap water based clay for the wall. Hope that helps. Good luck.
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jknig Profile
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Re: Cowl sculpting advice


Thanks guys I appreciate the advice. I'll hold off for a little bit.
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Re: Cowl sculpting advice


I would have to agree with Red and Floyd. Hold off until you have the right materials or you're basically going to waste your sculpt. Speaking of which, care to share some pics? We'd love to see what you're concocting.

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Bigbat23 Profile
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Re: Cowl sculpting advice


I also forgot to mention. Instead of using plaster bandages, I used strips of burlap. It's cheaper and stronger. You'll want to do 2 layers of Ultracal, then the next 2 layers with the burlap strips. That will make your mold nice and strong.
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jknig Profile
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Re: Cowl sculpting advice


Sounds good thanks. And I'll try and get some pictures up tonight when I get off work
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Re: Cowl sculpting advice


Quote:

Bigbat23 wrote:

I also forgot to mention. Instead of using plaster bandages, I used strips of burlap. It's cheaper and stronger. You'll want to do 2 layers of Ultracal, then the next 2 layers with the burlap strips. That will make your mold nice and strong.



Exactly, and when you do the burlap what you want to do is have a bucket of extra thin ultracal made up, dip your burlap strips in it and make sure they are soaked then apply them to your mold, like doing paper machete. After that add another couple of coats of ultracal. The mold will be heavy but it will be strong as heck.

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jknig Profile
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Re: Cowl sculpting advice


Thanks for all the advice guys you're awesome. I love how helpful everyone is here. I decided to scrap my sculpt unfortunately. The armature I'm using has a head that's looking up and it was too difficult to keep everything in proportion. I found a Styrofoam head at Walmart or I might do a duct tape dummy if I can pack it solid enough. Since it's my first time I think that would be better for me anyway so I could make a one piece mold. But I've got a body suit idea I'll post up in another thread.
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Bigbat23 Profile
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Re: Cowl sculpting advice


I did a budget head armature using plaster bandages from Michael's, Vaseline, expanding foam from Home Depot and a laquer based primer also from Home Depot to seal it. It has lasted through 2 sculptures and molding process. And I'm about to use it for a 3rd soon. If you are interested in the rundown of how I did it, let me know. I'd be happy to walk you through it.
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jknig Profile
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Re: Cowl sculpting advice


Bigbat23 It'll be a couple weeks before I start again but dude if you find the time I would really appreciate it. I tried expanding foam in a duct tape dummy once but it didn't fill in right so certain areas caved if I pushed the clay in. It did look like a chitari when I peeled the duct tape off though so I wish I kept it. Lol
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