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Illustrated Craft Tutorial - How to use Molds to Make Plaster of Paris Castings

You need a measuring cup, a rubber bowl, a spoon to mix, paper towels, plaster powder, water and candy molds or casting molds. Steps 1 - 8 show you how to prepare the castings. Step 9 takes you one step further and adds color to the castings.

 

 

Plaster 1

1. Follow the manufacturer’s instructions for the amount of water and plaster powder you will need. This particular brand uses 2 parts plaster powder to 1 part water. Slowly add the powder to the water and stir well.

Plaster 2

2. The mixture should be thick but runny. It should be still liquid enough to flow off of the spoon without additional help. Our experience is the more watery the mixture is, the longer it will take to dry, but the pieces will also be lighter in weight once dry. Experiment for the results you are satisfied with.

Use the mixture immediately and spoon it into the candy molds or plastic molds. Tap the molds often to make the air bubbles come to the backside of the pieces.

Plaster 3

3. Depending on how warm your room is, let the castings dry between 30 minutes to one hour. You can feel the back of the castings if they are firm or not. When firm, they can be carefully removed from the mold.

Plaster 4

4. In the meantime, while the pieces are drying, use paper towels and clean out the bowl and the mixing spoon. Try to avoid that plaster goes down the drain. It could clog it up.

Plaster 5

5. Once the pieces are dry, carefully pop them out of the forms. It may not be so easy at the beginning so you may have to work at it...

Plaster 5.5

6. ...and slowly the piece will come out.

Plaster 6

7. Once you have the piece out, it is firm but still soft enough to smooth the excess plaster off of the edges. First use a craft knife to get rid of the excess plaster. Then use your fingers and smooth around the edges until you are satisfied with the look of it.

Plaster 7

8. To dry the pieces completely, lay them on a cake or cookie rack or even better.... on a radiator if one is turned on. Let them dry overnight. The next day they will be ready to use or to paint on.

Painted Plaster of Paris Pumpkin

9. Use acrylic paint to paint the pieces. Water color paint works also well but the color is not as intense. Once painted and dry, use clear acrylic sealer on them to protect them from moisture and to give them a nice glossy look.

 

 

Bougies - German website with decorations for home and garden, craft supplies and also plaster of Paris molds.

 

 

 

Create castings to make the leaf decoration for this antique flower pot
Click here for a larger image and supply list to make this project.

Summer Craft - Beige Antique Flower Pots with Leaf Motif

 

Make seashell castings to decorate this trinket box
Click here for a larger image and supply list to make this project.

Summer Craft - Paper Maché Trinket Box with Seashell Motif

 

 

 

More Tutorials for Miscellaneous Crafts

Make Over a Cookbook Using a Bamboo Mat

Lavender Scent Wand Tutorial

Hay Decorations

Mosaic Tutorial

How to Create Small Stamps for Paper Crafts

Tutorial - How to Needle Felt a Shape Using Cookie Cutters

Tutorial - How to Needle Felt on a Styrofoam (Polystyrene) Figure

How to Decoupage and Emboss on Metal

Paper Napkin Applique or Decoupage

How to Emboss on Metal Sheets

How to Make a Simple Bow

Wreath making

Plaster of Paris Castings

3-D Acrylic Ball Decorations

Modelling Clay for 3-D Figures

Window Cling - Window Color/ Glass Design Paints

Creating Fun Foam Stamps

 

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