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Tiki Central Forums Creating Tiki Other Crafts Resin casting mold suggestions
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Resin casting mold suggestions
The Lounge Tiki
Tiki Centralite

Joined: May 10, 2009
Posts: 91
From: Chiwai'i (Chicago)
Posted: 2009-06-16 9:40 pm   Permalink

Aloha everybody!

So, some progress on my resin pieces! I have finished making a few masters from Super Sculpey and they have come out great! Thanks for the suggestion!

I'll be getting the silicone in a few days and making the mold as shown here.
http://www.b9robotresource.com/molding1.htm
My queston now areises in the final 2 steps on that page where he shows a layer of molding clay. I have tried emailing the site operator but to no answer, so I now turn to the good people er...villagers of TC for help. What is a good medium to use as that molding clay? My thought was Play-Doh and just spray a little extra release agent onto it.

Mahalo!
-LT


[ This Message was edited by: The Lounge Tiki 2009-07-15 16:24 ]

[ This Message was edited by: The Lounge Tiki 2009-07-15 17:13 ]


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Bowana
Grand Member (6 years)  

Joined: Nov 10, 2006
Posts: 1164
From: La Mesa, CA
Posted: 2009-06-16 10:20 pm   Permalink

Bondo on a stick will work if you are planning on carving it only. Trying to sculpt Bondo is near impossible. However, the pitfall with carving Bondo is all the little bubbles that will appear as you carve into it.

I agree with Clarita about using Magic Sculpt. You can sculpt it, carve it, sand and polish it, and add on to it after it has set. I can't get it here in SD either, so I order it from The Complete Sculptor:
http://www.sculpt.com/

Another solution is to make your piece out of whatever, mold it, cast a resin, sand, smooth, touch it up, make it perfect, then mold it a second time to make your master.

Good luck!!

Bowie



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pdrake
Tiki Socialite

Joined: Jan 13, 2006
Posts: 1767
From: las vegas
Posted: 2009-06-17 12:18 am   Permalink

dude, i have nothing in my area. i sculpt my masters from bone, wood, jade and pewter. hunt around your local hobby stores for stuff.

order stuff from online vendors.

learn to work with what you have.

it's hard and i know from first hand experience. people around here will help you.

i love magic sculpt. no one in my town carries it. i order it online. there are ways to make it work.
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The Lounge Tiki
Tiki Centralite

Joined: May 10, 2009
Posts: 91
From: Chiwai'i (Chicago)
Posted: 2009-06-17 03:38 am   Permalink

Mahalo for all the help so far!

I should have mentioned this I guess. I don't have a credit card. I have been afraid to get one with all the identity theft going on, not to mention the current state of the economy. The one idea I had was to use and American Express giftcard. Does anyone know if that works online?

Mahalo (again)
-LT


 
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AlienTiki
Tiki Socialite

Joined: Jul 08, 2005
Posts: 424
From: MAUI No Ka'oi
Posted: 2009-06-17 2:24 pm   Permalink

I'm no master, And I don't work for them.

http://www.sculpey.com/Products/products_poly_supersculp.htm

I read some pro's use it.

Aloha




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pdrake
Tiki Socialite

Joined: Jan 13, 2006
Posts: 1767
From: las vegas
Posted: 2009-06-17 3:54 pm   Permalink

you can get a visa/MC/amex gift card to order stuff online. most grocery stores sell them.

the great thing about magic sculpt is that it's water soluble until it hardens. you can smooth it out with a damp finger or tool. just don't put it in your mouth after you do that. it doesn't taste very good.


 
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The Lounge Tiki
Tiki Centralite

Joined: May 10, 2009
Posts: 91
From: Chiwai'i (Chicago)
Posted: 2009-06-20 04:59 am   Permalink

Mahalo all for your great suggestions and advice. Sorry it took so long to thank you all, but I've been spending a little too much time in the Bilge area. Anywho, I was given some very sound advice thru a PM which I will follow. Hopefully this all pans out and I'll be posting some pictures of either a finished product...or a catastrophic failure. Either way, we'll have a good time!

-LT


 
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suburbanpagan
Tiki Socialite

Joined: Jan 02, 2004
Posts: 797
From: southern cal
Posted: 2009-06-20 10:24 am   Permalink

I carved my originals in wood and then made silicon molds for casting. Sometimes I'll make a cast and then refine it a bit further and make another mold from that one..... I get my materials from micro-mark partly because I am amazed by their catalog of supplies for model train enthusiasts! I can't believe how many specialized tools there are for that sort of thing! You can see my tiki necklace molds on my site: www.thetackytiki.com

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Unkl Ian
Tiki Centralite

Joined: May 16, 2009
Posts: 28
From: Backwoods of Canada
Posted: 2009-06-25 11:45 am   Permalink

You can get Sculpy at Michael's or Hobby Lobby.

Get the flesh colored stuff, the White is cheaper,
but the texture isn't as nice.

For large projects, you can layer it over
an armature of paper/cardboard/masking tape.

Do not use plastic, since you have to bake it in the oven.

After baking, the piece can be filed and sanded.



 
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Unkl Ian
Tiki Centralite

Joined: May 16, 2009
Posts: 28
From: Backwoods of Canada
Posted: 2009-06-25 11:49 am   Permalink

Another option, is Plaster of Paris.
Any hardware store should have it in 1lb boxes.
Just follow the instructions.

Cuts easy when it is damp, sands nice when it is dry.

Probably needs to be sealed, with clear, before making a mold.
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Unkl Ian
Tiki Centralite

Joined: May 16, 2009
Posts: 28
From: Backwoods of Canada
Posted: 2009-06-26 6:55 pm   Permalink

"Sulfur free" Plasticene is easy to work,
Plastilena makes Sulfur free Plasticene in different hardnesses.

Silicone Rubber doesn't want to cure properly, if you use the regular
Plasticene. The Sulfur creates some sort of chemical Voodoo.
So you need the Sulfur free kind.

That's the deal with Smooth-On products,
I'm guessing similar products are the same way.

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Kewlava
Tiki Centralite

Joined: May 21, 2007
Posts: 47
From: Phoenix
Posted: 2009-06-29 09:31 am   Permalink

Dude, If you have no means, do it how I started. Try carving the family size of Ivory Soap. That you can get locally. Then you can make a mold out of whatever you can get a hold of.
You can even make a serviceable mold from Unflavored Gelatine and a third of the water you'd use for "finger jello" except cut that water in half and substitute auto anti-freeze. (It keeps the molds from drying out, and also prevents mold- the icky kind.)
By the way, that mold will eventually shrink, since the water will evaporate.
To cast, you may want to mix resin and bondo to slush-cast figures.

Try it!



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The Lounge Tiki
Tiki Centralite

Joined: May 10, 2009
Posts: 91
From: Chiwai'i (Chicago)
Posted: 2009-07-15 5:16 pm   Permalink

B
U
M
P


 
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Tobor64
Grand Member (first year)  

Joined: Jul 13, 2009
Posts: 402
From: Burbank, CA.
Posted: 2009-07-16 07:59 am   Permalink

If you're still having resin casting & mold makeing issues, these are the best guys to contact:

http://www.silpak.com/

Give them a call & let them know what you're trying to do & they'll help you out with everything.

Good Luck!

[ This Message was edited by: Tobor64 2009-07-16 08:00 ]


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Tobor64
Grand Member (first year)  

Joined: Jul 13, 2009
Posts: 402
From: Burbank, CA.
Posted: 2009-07-16 08:01 am   Permalink

If you're still having resin casting & mold maker issues, these are the best guys to contact:

http://www.silpak.com/

Give them a call & let them know what you're trying to do & they'll help you out with everything.

Good Luck!


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