Using drywall as a mold shell?

Hecubus114

Hecubus114

Sr Member
RPF PREMIUM MEMBER
In an old thread someone mentioned that gypsum works well as as a mold shell. Then I looked it up and found that drywall is a type of gypsum. Can this be used for this purpose? Would it be hard to use? Would it need to be reinforced with cloth? Has anybody tried this? Is it even possible??? LOL!
 
I've done my fare share of drywall work and that stuff can get very hard. I think it sounds like a great idea and I think I would use it myself if I was not so fond of presto patch by dap I love that stuff .
 
Go to home depot and get a bag of durabond 90. Its a powder that you mix with water just like plaster.
 
yeah I wouldnt want to try it without someone who's already tried it recommending it... I'm just looking for something cheaper than fiberglass that I can purchase locally. Whats presto patch? Can that be pruchased in stores?
 
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Oh your not online now damn. I'm really excited about this now I'm going to have to cast a few more of these. I really forgot all about this.

Remember this stuff gets hot so don't be getten your hand all in it and it hardens fast but it isn't hard untill all the water is out of it. Normally in about 24 hours it takes on much of the characteristics of a ceramic. Very cool stuff and most people have never heard of it. Oh yeah the best part is you can get like a 40 pound bag for like 4 dollars.

Hope this helps some body.
 
Check it out, this is the first casting of the very first prop I ever made.

It is cast in Presto Patch. A really funny thing happened when some one that got one from me tried to recast it. Anyway I had forgotten that I ever even did this, but here it is.

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Ok this got back to me like a year after it happened, through a mutual friend. Supposedly this guy would get his hands on things he wanted to recast and he would soak them over night in a mild solvent. This would make for easy removal of glued on parts and the paint could be brushed off with a toothbrush. This way this guy could make a really good mold of all the pieces and even clean up the piece a little if he had some discrepancies with the piece.

Well from what I understand he put my piece in the soup and the next day there was nothing there but a mess on his workbench :lol Serves him right.

I thought it was funny.
 
00MrNotWrong00 said:
Ok this got back to me like a year after it happened, through a mutual friend. Supposedly this guy would get his hands on things he wanted to recast and he would soak them over night in a mild solvent. This would make for easy removal of glued on parts and the paint could be brushed off with a toothbrush. This way this guy could make a really good mold of all the pieces and even clean up the piece a little if he had some discrepancies with the piece.

Well from what I understand he put my piece in the soup and the next day there was nothing there but a mess on his workbench :lol Serves him right.

I thought it was funny.
Click to expand...

:lol:lol:lol:lol That's EXACTLY what ALL recasters deserve!!! What movie is this gun from,and will you offer this as a kit?
 
Well I made it back before it was even shone on the show so it's not accurate, but it is supposed to be the phase pistol from enterprise. I think I'll start a new thread about it, seeing as it is the first prop I ever made. I did finally get the paint scheme right and they looked great from about five feet away. As for doing another run, If things don't go well for me in the next few months. I'll be putting together a roto-caster and then I think this will be the first thing to find it's way on to my workbench.
 
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