what is this,what is it used for,and how do i make it

You can buy it at a hobby shop pretty cheap. It's kind of a paper mach. All you do is add water. Might also go by name of Sculptamold. Check in the model railroading section for it

Celluclay and Sculptamold are two different products with similiar uses. Of the two, I prefer the Sculptamold.

It comes in a 5 lb bag Littlenick and I get it at my local hobby shop. You "make" it with white glue and water.

ooo ok thanks
so i can make it myself
what is it used for

its better if u buy it.
u mix it with water.
if u are doing dios,.
just use stairform or spakle then work your way up to the celluclay.
its kinda messy to work with

Groundwork

I have never used it ... dont think its available here in sweden .... but I have read countless horror stories about using it. becuase its pretty wet, it is liable to warp your base. If you do decide to use it, prepare your base first with a good protective coat!

PB is right. You need to seal your base with something before you put Celluclay on it. It goes on pretty wet and your base will warp, badly.
I have been using the stuff forever and swear by it. It is basically instant paper mache' I usually mix my with water and white glue to help it stick to the base. It has a nasty habit of lifting at the edges when it dries. If it does, shoot some CA under it and stiick it back down.

HTH
Shaun

PB, What do you use for your groundwork?

Yes, you must seal your wood first. As a rule, before I lay down the Sculptamold, I will seal my wood with three coats of Polyurethane minimum.

The problem that I've had with Celluclay is that it shrinks too much for my liking. Sculptamold does shrink but, it is minimal. Celluclay has also lifted on me over time.

Someone told me you could make mud with it

It is what Shep Paine suggests using for mud. You can mix it up and then paint it, or add some paint to the mix to color it. I've used it for ground work once, properly preparing a base with poly, and I hope to try it out as mud tomorrow. I mixed a little plaster and white glue for the ground work when I used it before and didn't have any problems with shrinkage or lifting up.

BTW, I got mine at Hobby Lobby, I'll bet Michaels and Wal-Mart also carry it.

I agree with the previous posts, if you use Celluclay for your diorama groundwork, you need to seal your wooden base with polyurethane. I usually apply three costs of the polyurethane. Also, to help the celluclay "grip" the wood surface, I drill numerous holes into the base before I stain it and coat it with the polyurethane. To avoid shrinkage, I mix the celluclay with Durham's Water Putty, available at Home Depot. I also have purchased my celluclay at Hobby Lobby, probably much cheaper than if you purchased it at your LHS.