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How to Make Fake Rocks
How to Make Fake Rocks . Fake rocks can be used in a variety of scenarios, including train tables, science projects, movie sets, and themed events or parties. While real rocks may be easy to find, they are also heavy, dirty, potentially dangerous, and can be difficult to dispose of when in large quantities. Fake rocks, on the other hand, can be...
Fake rocks can be used in a variety of scenarios, including train tables, science projects, movie sets, and themed events or parties. While real rocks may be easy to find, they are also heavy, dirty, potentially dangerous, and can be difficult to dispose of when in large quantities. Fake rocks, on the other hand, can be made fairly inexpensively and offer a great afternoon craft project.
Things You'll Need
Styrofoam
Foam spray insulation
Wax paper
Wide roll of plastic or fiberglass mesh tape
1 bag of tile grout
Disposable gloves
Stirring stick
Putty knife
Grout tint
Break apart pieces of Styrofoam to serve as the bulk of your rocks. If you're using sheets of Styrofoam, stack them together to make them bigger. Do not worry about the shape, as rocks come in all shapes and sizes.
Spray some spray foam onto a sheet of wax paper to create additional rocks with a flat bottom surface--perfect for making a fake rock wall.
Cover your Styrofoam rocks with self-adhesive plastic or fiberglass mesh so that the grout has a surface to adhere to.
Use a stirring stick to mix enough grout to cover your fake rocks. Slather the grout on the outside of the rocks with a putty knife. Be sure to follow the manufacturer's instructions for tinting your grout.
Inspect the outer surface of your fake landscape rocks after they are dry. Fill in any unsightly cracks or pits.
Tips & Warnings
If you're making spray-foam rocks for indoor use, you can skip the grout and simply paint them with a matte finish until they look real.
Papier mache also makes great fake rocks. First, make a wire-frame of your rock. Then, place strips of newspaper in a paste made from water and flower. Set the strips over the wire-frame, allow them to dry and paint them the desired color.
Be sure to wear protective gloves while making artificial landscape rocks because grout can be very drying to your skin.
