plaster paris?

Question

how do you make plaster paris? the simple way, like homemade?

this is for molding things, and making models. thanks.

also, kinda like the way people make it with newspapers

Answer 1

Paper Mache' is what you are referring to. ...

Recipe for Paper-mache
Materials Needed:

Newspapers,
Flour,
Water,
Mixing bowl,
Tempera paint,
Materials for form: such as balloons, grocery bags filled with crumpled papers.
Directions:

1) Tear long newspaper strips about one to two inches wide.
2)Use your form such as the balloon.
3)Blow up the balloon or put crumbled newspaper in a brown bag and shape the bag.
4)When you choose your shape, remember you will have to remove your form when the project is complete so cover your form with plastic beforehand (a plastic grocery bag). If you are using a balloon, you can just pop the balloon.
5)In a mixing bowl, combine water and flour until you have a paste that's thin enough to coat the paper strips.
6)Experiment first with some small quantities first. If the mixture is too thin, the paper will turn into a soggy mush.
7)Dip the paper into the paste and use your index finger and middle finger to act like a squeegee to run down the strip of paper.
8)Place the strip on your form, crisscrossing to make overlapping layers.
9)When you are done, place in a warm, dry area to dry.
10)Once the design is completely dry
remove form by cutting a slit in the bottom of the form and pulling out form, or pop the balloon.
11)Decorate with tempera paint.

Again, this is one project that your imagination can go wild. It's quite messy, but the results are worth it.

Answer 2

"Plaster" can refer to a lot of things, and there are several different types of what I'd call plaster of Paris. Chances are the store was selling what you want, but here's some info to help you decide: Houses inside and out were traditionally plastered with lime plaster. This is NOT the same as plaster of Paris. If the store is a hardware store and you live in an area where traditonal plastering still happens, their plaster may not by what you want. But this is unlikely. I buy casting plaster in bulk--100 # bags--and they are labeled "USG casting plaster" not plaster of Paris. The plaster I buy is whiter and seems finer than what is labeled "plaster of Paris" (DAP brand, in my area) but other than that, they are the same. Some other types of plaster like this might be labeled "gypsum plaster," "Industrial plaster" or "Hydrocal." These are all basically modern versions of traditional plaster of Paris, but set up slower or quicker, or are harder, depending on type. Where I live, if you go to a craft store, they'll sell you plaster in a small container and you'll pay too much. If you go to a hardware store, you can usually buy plaster of Paris (labeled that way) in 25 # sacks, which is a lot more economical. If you open the bag, and it isn't a fine white powder, you've got the wrong stuff. Take it back.

Answer 3

Plaster of Paris is made from gypsum, and it's much more cost- and time-effective to buy boxes of dry plaster powder and mix it up with water as directed on the box.

The other stuff you're talking about is papier mache (papier mâché), which you make my mixing bits of thin/soft paper (like unused newsprint paper) and water to make a slurry. This is then slapped onto forms/armatures/molds to round out the shape you want.

Answer 4

i have used boxes of sand and saran wrap .if you have what you want copied just press it in the saran covered sand and pour plaster in . i did this to put ginger bred in corners of door ways inside my house it is fun to know i made them for pennies even. i used the same method with an elephant ear leaf for a bird bath dish next to my koi pond.plaster is cheap ! buy it . try www.sunshinecrafts.com they will send you a catalog. they ship quickly.they have tons of stuff and they are very inexpensive. my daughter tried dryer lint flour and tacky glue in the blender. we didnt use a receipe.

Answer 5

Plaster of Paris
I think that you purchase the powder.
You add water and mould it or sculpt it!
It is relatively inexpensive!

Answer 6

Like you said, you take newspaper, shred it up to little pieces (coin-size), add them to a bowl, add alittle water till you get the type of stickiness, and mix until you get the desired result.