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Ack! Celluclay behaved badly...

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  • Member since
    July 2014
Ack! Celluclay behaved badly...
Posted by batai37 on Thursday, June 17, 2010 4:51 PM

O.K. I think I know what happened here...

While making my first diorama base, I mixed up the Celluclay according to the instructions and applied  on a prepared oval wooden pine base (coated with a clear polyurethane to supposedly prevent moisture absorption), and let it dry overnight. I added coarse sand ballast, white glue for adhesion, and some craft paint to give it the right color as well.

As it dried, cracks appeared all over the dried surface, the edges shrank noticeably from the base edge, and it totally warped the wooden base.

Is this a case of too much water in the Celluclay? I didn't apply all 32 oz. to the 1 lb. quantity, and It was a pretty thick paste when I applied it. I thought I mixed it pretty well too. I've read here that some people will use something like a fine mesh such as wedding veil lace to squeeze out as much water as possible.

Too much water? Possibly too much ballast to celluclay?

Insights?

  • Member since
    April 2008
  • From: Ventura (at the beach) in California
Posted by *INDY on Thursday, June 17, 2010 11:51 PM

No matter how many times you read Cellu-clay is the right product to build a dio base with, don't forget there are many better alternatives.

Here's a great thorough discussion from this Forum that will give you insight into using that product better or what to consider using instead.

GROUNDWORK THREAD   <---click   (and feel free to leave a comment/ ask questions on that thread --the concerned parties will likely answer)

"Well...you gunna pull them pistols, or just whistle Dixie?"

  • Member since
    July 2014
Posted by batai37 on Friday, June 18, 2010 12:02 AM

Thanks for that.

BTW INDY I updated the Road Warrior Interceptor thread to include new pics of it in the dio.

/forums/t/125922.aspx?PageIndex=2

  • Member since
    July 2003
  • From: Toronto, Ontario, Canada
Posted by zokissima on Saturday, September 18, 2010 3:18 PM

I don't read the celluclay instructions, never have. I almost don't even put water in now, but almost entirely white school glue, only, plus the colouring.

Also, I took a tip from Manstein's Revenge; I glue some sprues around edges and all over the base, the form the celluclay over that. As it dries, it does not crack due to very low water content to begin with, and grips the sprues, thus does not lift off the edges.

  • Member since
    May 2005
  • From: Eugene, Oregon
Posted by hughes2682 on Saturday, October 2, 2010 1:46 PM

I have used the white glue approach as well with better results that good old H2O.  Another technique I have used is roughing in terrain with Styrofoam and then covering that with Elmer's Wood Filler. Here is a link to a build I did using the styrofoam. It's about half way down the page.

/forums/t/128017.aspx?PageIndex=5

Cheers

Dave

http://img.photobucket.com/albums/v317/Aaronw/Groupbuilds/ClassicAviationGB2010bomb.jpg

With enough thrust, pigs fly just fine.

  • Member since
    March 2008
  • From: The Bluegrass State
Posted by EasyMike on Tuesday, October 5, 2010 7:57 AM

Too much water in the mix.

Your wooden base was not sealed as well as you thought it was.

Smile

  • Member since
    September 2015
  • From: The Redwood Empire
Posted by Aaronw on Sunday, October 10, 2010 3:53 PM

zokissima

I don't read the celluclay instructions, never have. I almost don't even put water in now, but almost entirely white school glue, only, plus the colouring.

Also, I took a tip from Manstein's Revenge; I glue some sprues around edges and all over the base, the form the celluclay over that. As it dries, it does not crack due to very low water content to begin with, and grips the sprues, thus does not lift off the edges.

 

That is a great idea, and it gives me something to use all that left over sprue for. Other than mixing paint I never know what to do with the sprue.

  • Member since
    October 2007
  • From: Willow Oaks Compound / Model Bunker
Posted by razorboy on Saturday, October 16, 2010 7:26 AM

I use water based paints to colour the mix, about a tablespoon of white glue then I add enough water to bring the consistency up to about that of really thick cookie dough.  Don't follow the instructions ... it will yield soup.

This tutorial is for vehicle mud but it's the same mix as I use for groundwork.

http://www.armorama.com/modules.php?op=modload&name=Sections&file=index&req=viewarticle&artid=2584

rb

Mic
  • Member since
    June 2009
  • From: AusTx, Live Music Capitol of the World
Posted by Mic on Saturday, October 16, 2010 11:12 AM

Yeah, I've never had a problem with Celluclay either and, like the others above me, I use more glue than agua. One thing, in addition, is that I never use it in more than about a 1 /3" layer. Don't know if that has anything to do with my luck.

Steve M.

On the workbench: every tool, paint, brush, glue I own

  • Member since
    December 2003
  • From: Colorado
Posted by psstoff995 on Saturday, October 16, 2010 2:27 PM

I've never read the directions but when I mix it I start out with a fair amount of the celluclay powder, then add in large amounts of white glue and acrylic gel medium (can also add acrylic paint) then just enough water to ease in the mixing process. Start with less water than you think, you can always add a bit more if need be. The amount of ballast or debris/sand whatever shouldn't matter with the mixture, you might fine you'll need a little bit more water but with the white glue- there's still plenty of "liquid" to allow for a usable mixture. Good luck! It's a pain to get it right but once you get a feel for it, it's pretty easy to work with and nothing quite gets the same textured results.

-Chris

US Army Infantryman

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