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Sculptamold

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Sculptamold
Posted by Jerrys HO on Wednesday, January 4, 2017 4:52 PM

Has anyone used this instead of plaster or drywall mud? Pro's/Con's?

Going through my daughters old art supplies and came accross a little left in a bag. Seems to be really workable and solid with not much mess as the others.

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Posted by michaelrose55 on Wednesday, January 4, 2017 4:59 PM

I always use it for any landforms besides rocks where plaster is the better choice. It works well, can be drilled or sawed, doesn't chip and doesn't weigh much. 

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Posted by RR_Mel on Wednesday, January 4, 2017 5:22 PM

Sculptamold is 100 times better than Paper Mâché, doesn’t shrink and is much easier to work with.
 
My Model Railroad   
 
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I'm beginning to realize that aging is not for wimps.
 
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Posted by Jerrys HO on Wednesday, January 4, 2017 5:23 PM
That's what I noticed with the little bit I had. Great stuff and does not seem to pricey. Hopefully I can find some locally. Thanks for the reply.
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Posted by Jerrys HO on Wednesday, January 4, 2017 5:25 PM

I need to get more. How's the weather in Bakersfield? I am originally from Vallejo. Love to visit when I can.

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Posted by RR_Mel on Wednesday, January 4, 2017 5:38 PM

Jerrys HO

I need to get more. How's the weather in Bakersfield? I am originally from Vallejo. Love to visit when I can.

 

We’re in the middle of our normal rainy season, 6” rain storms (that’s a drop every 6”) todays high is 59°, 100% chance for rain this evening (that translates to at least a few drops).
 
My Model Railroad   
 
Bakersfield, California
 
I'm beginning to realize that aging is not for wimps.
 
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Posted by cowman on Wednesday, January 4, 2017 5:42 PM

I like it, have used it for some land forms over a foam base.  Also mixed it a tad thin and poured it into a large, crumpled tin foil form, when partially dry, stood it up against a verticle foam wall, on a curve and came up with a vey nice, 6" high, 20" long, rock cut at one end of my view block. 

Good luck,

Richard

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Posted by Jerrys HO on Wednesday, January 4, 2017 5:53 PM
Guy's I just realized I did not provide correct info as there are a couple of types. The one I am referring to is Amaco Scuptamold. I've never really used any type before.
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Posted by Jerrys HO on Wednesday, January 4, 2017 5:56 PM
Just realized I did not put a brand if it matters as I have not used any before. The one in question is the Amaco brand.
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Posted by peahrens on Wednesday, January 4, 2017 6:00 PM

I decided to try Sculptamold on my land forms, over both foam and over plaster cloth on cardboard strips.  I like it enough to continue with it, though you will find other threads here (google on the subject: "site: cs.trains (subject)") where people have other preferences. 

This is the (AMACO) type I used:

http://www.modeltrainstuff.com/American-Art-Clay-Company-41819M-Sculptamold-Mater-p/amaco-41819m.htm

There are recipes for "ground goop" where you can make your own stuff.  I found the components (includes vermiculite IIRC) but haven't tried it yet.

The Sculptamold is easy to use, just need to learn what thickness to achieve, not difficult.  The texture after dry depends on how thick when mixed and how much it is worked with the spatula used.  Kinda like how much you work concrete.  I think it's pretty easy to attain a result with a texture that will end up ok, since I then paint it for a base color and (at some point, maybe 2017) will be adding overlays such as ground foam, grasses, bushes, etc.

Paul

Modeling HO with a transition era UP bent

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Posted by mlehman on Wednesday, January 4, 2017 7:11 PM

~250 lbs later, Sculptamold is still my go-to land-forming material. I usually use an armature of pink styrofoam as the base material.

When I was making lots of scenery, I purchased it in the convenient, economical 50 lb size. One of the good things about Sculptamold is that it keeps well and is ready to use whenever you want to return to using it, a big advanatage over plaster.

Sculptamold is the brandname that Amaco uses for this product. No one else makes stuff quite like it, although a  few come close.

Mike Lehman

Urbana, IL

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Posted by superbe on Wednesday, January 4, 2017 7:36 PM

When not doing rocks, I prefer to add earth color when mixing the batch.......no need to paint later.

Bob

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Posted by fa-1 on Wednesday, January 4, 2017 9:44 PM

what do you use to tint the sculptamold  an earth color?     &  does it affect the drying time?        

         thanks                 FA-1  

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Posted by CRIP 4376 on Wednesday, January 4, 2017 10:21 PM

I tried it recently for the first time.  I used a palette knife to apply it over pink foam and it was like putting icing on a cake and it looks half decent.  It does take a little longer to dry, but that is not a disadvantage.  I will use more and more in the future.

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Posted by gpharo on Wednesday, January 4, 2017 11:32 PM

I recommend it, I used it to build smaller land formations and fill in the gaps between plaster rock molds 

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Posted by FRRYKid on Thursday, January 5, 2017 12:27 AM

I have used the material for both covering foam and for castings. Just a matter of how the ratio of water to Scuptamold. A lot lighter and easier than using Hydrocal. (Given the number and length of tunnels I have, lots of tunnel liners are needed.)

"The only stupid question is the unasked question."
Brain waves can power an electric train. RealFact #832 from Snapple.
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Posted by Metro Red Line on Thursday, January 5, 2017 4:35 AM

Sculptamold is EXCELLENT when working with foam (blue/pink extruded styrofoam, and even white beaded styrofoam), as it fills in gaps and smoothes out rough areas.

If you want to make rocks or castings, hydrocal plaster is what you need to use. But you can even attach those castings to scupltamold.

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Posted by superbe on Thursday, January 5, 2017 7:55 AM

fa-1

what do you use to tint the sculptamold  an earth color?     &  does it affect the drying time?        

         thanks                 FA-1  

 

I used cheap craft paints I had on hand from Wal-Mart such as Americana and or Apple Barrel. Use dark colors as the Sculptamold is going to lighten them. I had dark chocolate, raw and burnt umber, and I think I may have added a little black. You really can't go wrong by just adding color to the mix until you get what you want. You can of course add more Sculptamold and water if you get the wrong color.

The paint thins the Sculptamold and as for drying time I didn't notice any difference since I let it dry over night.

Try it and I think you will be pleased.

Bob

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Posted by speedybee on Thursday, January 5, 2017 9:23 AM

I've also heard that Structolite is popular, or a mix of Sculptamold and Structolite. Can anyone share some insight on this? I've never tried either (but looking forward to doing so).

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Posted by riogrande5761 on Thursday, January 5, 2017 1:26 PM

speedybee

I've also heard that Structolite is popular, or a mix of Sculptamold and Structolite. Can anyone share some insight on this? I've never tried either (but looking forward to doing so).

I haven't used it but at the Timonium train show, the scenery clinic guy spoke of it and used it in his demonstation.  I is definitely something some like to use.

Rio Grande.  The Action Road  - Focus 1977-1983

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Posted by mlehman on Thursday, January 5, 2017 2:00 PM

Structolite is a form of plaster that is typically used as a means to lighten and insulate in situations where this is needed. Sculptamold is already light and no one much worries about its insulating factor on a model RR, although maybe it might be enough of a reduction on a portable module to make it worthwhile. I've heard of people using it, but haven't tried it myself.

Mixed with Sculptamold, I think achieving a different texture is what people are mostly after when using Structolite. It may also cause the Sculptamold to set up harder, due to it being a form of plaster, which some may want for various reasons.

Perlite is what makes Structolite light and insulative, as well as providing the texture. Perlite can be found by itself in lawn and garden stores, etc, as it's used as a soil-lightening additive there. Like with plaster, etc, be cautious about dust, but I'll bet it's lots cheaper that way than as Structolite. It would also provide the grit some are after without causing any difference in setting time in Sculptamold, so that's another option to consider.

Mike Lehman

Urbana, IL

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Posted by MikeFF on Friday, January 6, 2017 8:50 PM

Love the stuff.  Buy it in bulk from Dick Blick.

 

Mike

 

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Posted by mlehman on Saturday, January 7, 2017 9:23 AM

MikeFF

Love the stuff.  Buy it in bulk from Dick Blick.

 

 

Mike,

Yes, that's where mine comes from now. Great prices (50 lbs was just less than $100 last time I got a big bag) and it goes a long way. So long as you close the bag up after getting what you need, it keeps just fine until needed.

Mike Lehman

Urbana, IL

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