It can be made at home with plaster of Paris.If you don't want to handle flour, you can use glue and water.You can use it to make plaster casts, molds, or even chalk after making it.
Step 1: To get to 100 F, you need 1 cup.
Warm water helps speed up the process.To heat the water to the correct temperature, use a microwave or stove.
Step 2: The water and flour should be put into a mixing bowl.
The water should be spread evenly over the flour.When all the water is added, begin stirring the mix with a spoon or spatula.Use a disposable plastic spoon if you are worried about dried plaster sticking to your utensils.
Step 3: When there are no lump, stir the mixture with a spatula.
The consistency should be a white paste.The plaster should be thick and easy to stir.Add more water if it seems too thick.Add more flour until it becomes thick.
Step 4: 10 minutes is the time it takes to work with plaster.
As you work with the plaster mixture, it will start to solidify.As soon as you have finished stirring the mixture, pour it into your molds.
Step 5: For 48 hours, let the plaster set.
The plaster won't be completely set through in 24 hours.Allow it to sit at room temperature for a few days.
Step 6: To get to 100 F, you need to heat 2 to 3 cups.
To heat the water, use a microwave or stove.
Step 7: One cup of water and two cups of school glue.
Put the water and glue into a mixing bowl and stir them together with a spatula.When the plaster has a soupy consistency, stir in a little water at a time.
Step 8: Within 15 minutes, you can work with the plaster.
Making plaster with glue will make it have a slightly longer drying time, but you should still work with it as soon as you finish mixing it.To make the shape you want, pour it into the molds.
Step 9: The plaster needs to be set for 72 hours.
It may take up to 3 days for the plaster cast to completely dry because plaster with glue takes longer to cure.It should be kept at room temperature for a thorough dry.