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 > Model Trains > Railroad Scenery > Molds & Accy : Woodland Lightweight Hydrocal wooc1201

Lightweight Hydrocal

This is Woodland Scenics' 1/2 Gallon Lightweight Hydrocal.

Woodland Lightweight Hydrocal 1/2 Gallon Model Railroad Mold Accessory #c1201
 Woodland Scenics # wooc1201
Retail $13.99  SAVE 21% !
Woodland Scenics Item # wooc1201
Specifications :

Volume: 1/2 gal

  • Woodland Product Number: C1201
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Spotlight Review

"Great for what I use it for."
I use it for rock molds and feeling holds in the plaster cloth I lay on my diorama. Works great.

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  • Specially formulated for terrain model builders.
  • Half the weight of Hydrocal and goes twice as far.
  • It's the tough, quick setting product you will prefer!
  • Use it for casting rocks, creating hard shell scenery, filling in around castings and as an adhesive.
  • Leaves a smooth finish.
  • May be used on Plaster Cloth for making strong hard surfaces.
  • May be tinted with Woodland Scenics Earth Colors (liquid pigments).
  • Instructions are listed on the side of the package.


Volume: 1/2 gal

  • Woodland Product Number: C1201


One Carton of Lightweight Hydrocal

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"I live by this stuff!"
because I currently live in a rented home, I know the day will eventually come that I will want to buy a place and move so my platform from start to (someday) finish :) has to be easily disassembled and relatively light weight to move around. I started my entire platform with foam to get my general shape and structure, and then I use the lightweight hydrocal to create all my rock molds and cliffs, etc for my scenery. It is lightweight indeed. It's also very easy to work with and dries fast (I can fill a mold and come back an hour later to remove it but I put it somewhere to finish curing over night before painting it so it is thoroughly dry). It is especially handy when you use the plaster cloth to cover your foam first, then attached your castings to a layer of plaster. If you use the plaster cloth to fill gaps around castings it's easy to notice when you've finished and it's dry that there might be a spot or two that you can see the cloth fibers; just mix a little hydrocal and put it over those little spots and done. You can also use the scenic glue that woodland scenics has, but most of the time I'll use the hydrocal because it works just as good as an adhesive when you wet the back of a casting and the place on your layout that you're trying to adhere to. While they don't break easily, it's easy enough that you can break off pieces of your castings if you only need a small piece or a small rock. It sets up fast so be careful how much you mix at once time (it only has like a 5 minute working time before it starts to set up). This is a great product, I use it all the time!

"I just love this stuff!"
I have used this product in various store bought molds, but have also built my own. The material sets up well (albeit a little faster than I would like) and is very easy to paint and carve when cured.

I used this on a layout I am modifying. IT WILL NOT STICK TO WOOD. IT WILL NOT STICK TO BUILDER STYROFOAM SHEET. A note from Woodland Scenic said it was designed to be used with other Woodland Scenic products, and will not adhere to these substrates. It was relatively easy to mix. It was easy to work into shape. It hardened well and could be sanded after it dried. It just did not adhere. It may work well for your application, but it did not work for me.

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