The purpose of alum in traditional marbling is to precipitate the pigment colloid solution on the paper surface.
Marbling paper with starch and alum.
After the alum is applied hang the paper to dry.
The ph of an alum solution is approximately 3 4 depending on the concentration used.
Then use your marbled paper for cards gift wrap or place it in a frame for one of a kind art.
To make this fun and easy marbleized paper you will need.
Mix alum and warm water optional.
You can easily make your own rake for making patterns in your paint by sandwiching toothpicks taped at 1 4 to 1 inch intervals between layers of corrugated cardboard prepare the surface of your paper.
Without it the marbling will be faint and blurry.
Prepare the marbling size.
Marble paper science projects require adult supervision but they are super easy.
Alum is a mordant meaning it causes color to set on the paper.
You will need to cover your paper with alum in order for the design to transfer from the water to the paper without getting washed away.
Alum aluminum sulfate crystals a sponge brush 2 tbs.
Once the paper is dry press them under books to make them flat it will make marbling much easier if the paper is flat.
Every marbler knows the problems and the hardest thing in marbling is to find just the right paper.
You may apply the alum with a brush sponge or a spray bottle.
Mix 1 tablespoon of the powdery alum per one cup of water and then thoroughly wet the surface of your paper.
Once you understand the basics of paper marbling science experiment to find the method you like best.
1 2 tsp alum helps paint adhere to the paper 2 cups liquid starch liquid acrylic paints a long wooden skewer a 9 x 13 pan and white copy paper cut to fit the inside your pan.
Corn starch eye dropper tempura paint the more colors the merrier newspaper.
This video demonstrates the recipes and techniques necessary for aluming paper in preparation for marbling.
Mark one side of your watercolor paper with an a and use a sponge brush to apply alum solution evenly to that side of the paper.
Marbling size is the thickened liquid that the paint floats on.
It is not possible to marble with the alum wet on the paper the paint slides off.
Fill the other tray with water.
In one tray mix a starch bath with 4 cups liquid starch and 1 tsp.
Marbleizing supplies are inexpensive and readily available at art supply and crafts stores.
In fact this is a great science project for the whole family.
Dissolve 2 tablespoons of the alum in 2 cups of warm water.
To make enough alum for several dozen sheets of paper stir 1 tbsp 15 ml alum into 1 cups 360 ml warm water until completely dissolved at least two minutes.
Marbling paper in the ebru turkish style requir.
