How to Use Plaster of Paris to Anchor Paper Mache
masque en papier machÃ© image by jean claude braun from Fotolia.com
Paper mache is a fun and inexpensive way to create small statues and masks. Producing larger statues may take a bit more work because you will need to create a mould or base to strengthen the paper mache. Plaster of Paris is a good option for creating a base form for paper mache projects.
Plaster of Paris gives the sculpture strength and the paper mache overlay gives it a rich texture.
- Paper mache is a fun and inexpensive way to create small statues and masks.
- Producing larger statues may take a bit more work because you will need to create a mould or base to strengthen the paper mache.
Sketch the statue on paper to get a visual of what you are creating. Decide how large the project will be and the scale of each item.
Cover your work area with newspaper or plastic to avoid a mess.
Lay out your materials.
In a big mixing bowl, mix plaster of Paris powder with water in a ratio of approximately two parts plaster to one part water. This forms a claylike paste that can be sculpted into a mould, mask, statuary or other item. If the mixture is too thin, add plaster of Paris powder, if it is too thick or dry add water one teaspoon at a time. For a 6-inch statue, start with about 2 cups Plaster of Paris and 1 cup of water.
- In a big mixing bowl, mix plaster of Paris powder with water in a ratio of approximately two parts plaster to one part water.
- If the mixture is too thin, add plaster of Paris powder, if it is too thick or dry add water one teaspoon at a time.
Sculpt the plaster of Paris paste into your statue form. The paste sets within 30 minutes, so work quickly.
Set the statue aside to dry. Wait at least 24 hours before beginning the paper mache step to allow the statue to set completely and to avoid mould between the plaster and the paper mache.
In a big mixing bowl, stir together flour and water to make thin paste. Start with 1 cup of each. The paste should be thinner than cake batter but thick enough to stick to the newspaper strips.
Dip newspaper strips one at a time into the paste mixture. Run fingers down either side of the strip like a squeegee to remove excess paste. Lay the strip on the statue and smooth out any wrinkles or air bubbles. Lay additional strips in a slightly overlapping criss-cross pattern until the statue is covered.
- Set the statue aside to dry.
- Lay the strip on the statue and smooth out any wrinkles or air bubbles.
Let the pasted strips dry completely. Add additional strips for a second layer to give it a bit more textural depth.
Let dry for at least 24 hours. Paint or add embellishments like hair or beads.
- You can use the plaster of Paris to create other items for a paper mache base, like a bowl or a weight to go inside a paper mache dome (made from a balloon inside the paper mache).
- For a smooth finish, rub out all the wrinkles from the newspaper strip. Leave some wrinkles for a rough texture.
Carrie Simmons has been writing in the travel industry for more than 10 years. She is the creator, producer and primary writer of Travel With Kids, an award-winning family travel documentary series. Her articles have also appeared in “USA Travel Magazine,” “Yuma Daily Sun” and “Travel Savvy Mom.”