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Question for those who did Fiberglass Gelcoat molds

 
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Todzilla ()
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PostPosted: Sat Dec 29, 2012 1:27 am    Post subject: Question for those who did Fiberglass Gelcoat molds Reply with quote

Hey all, I'm getting closer to the time where I will be making a mold of my sculpt (once it's done) but I thought I'd start my research on fiberglass gel coating now to get a jump on material ordering.

Actually to be honest I'm familiar with using fiberglass and epoxy resins, my main question is if you use fiberglass cloth, fiberglass mat or chopped fiberglass strands to make the mold of your wookiee mask?

I noticed in the video Animatronics tutorial - Chapter 3 - Making the fiberglass mold , he's using what appears to be 2" fiberglass strands but I haven't been able to find that ANYWHERE, including online Sad

It also looks like Darth Serberus used the same material:
Darth Serberus wrote:

I wasn't too happy with the sculpt but hopefully when it was covered with hair it would cover any horrors. lol
So then it was into the mold.


I'm just hoping I can get pointed in the right direction on where to get "loose" fiberglass strands used in these molds. Or if you guys used something else.

Thanks in advance!
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Zaxmon (Ryan Ricks)
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PostPosted: Sat Dec 29, 2012 2:01 am    Post subject: Reply with quote

It's just fiberglass matte pulled into smaller pieces.

http://www.amazon.com/3M-488-Bondo-Fiberglass-Mat/dp/B000BOA0BY

Or just go to your local auto part store.
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SoloYT1300 (Robert Kohn)
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PostPosted: Sat Dec 29, 2012 2:07 am    Post subject: Reply with quote

I tend to use matte and cloth. I usually use the matte torn into small sections to start it, then use the cloth fiberglass to re-enforce it.

Whatever it takes I guess...
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GotWookiee (Matt Pfingsten)
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PostPosted: Sat Dec 29, 2012 7:49 am    Post subject: Reply with quote

I used fiberglass matte on my chewie mold, but will probably use clothe on future molds. It just laminates so much easier and is less messy. Matte gets everywhere.
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Todzilla ()
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PostPosted: Sat Dec 29, 2012 10:00 am    Post subject: Reply with quote

Decisions! Decisions! The good news is no one here is using "chopped strands". I'll probably do the following:

Clear Coat Spray finished sculpt
PVA release layers
Gel Coat with pigment and Cab-O-Sil filler
Then regular fiberglass with mat or cloth

Here is a really good video on the differences between mat and cloth:
The Basic of Fiberglass Fabric
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Zaxmon (Ryan Ricks)
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PostPosted: Sun Dec 30, 2012 6:27 am    Post subject: Reply with quote

Good video. I have purchased from TAP before.
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