Use these molds to cast the rocks to line the edges a creek, river, etc. Molds are flexible and reusable.

Set of 2 different molds measuring 5" x 7" (12.7 cm x 17.7 cm) each.

What is the best way to clean rock molds after use?
An old toothbrush, warm soapy water and a bit of light scrubbing will take dried hydrocal right off.

What are Woodland Scenics Rock Molds made out of?
Rock Molds are made of a non-latex polymer.

Can I use Shaper Sheet Plaster in your rock molds?
Yes. Shaper Sheet Plaster provides excellent detail when used as a casting plaster.

What is the dry quantity of lightweight hydrocal needed to cast one rock in a rock mold?
Rock castings can be made from the following Woodland Scenics plaster products: Lightweight Hydrocal Plaster (C1201), Super Strength Plaster (C1199), Shaper Sheet Plaster (C1180), and Carving Plaster (C1198).

Fill the Rock Mold with water, and then pour the water into a measuring cup. Measure the amount of water and divide by two. This is the amount of water you will add to the Plaster. Times the water amount by 2.5 to find the amount of Plaster you will need.