Alum Recipe 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.

Alum recipe for marbling.

Add another color dropping paint into middle of previous color if desired. The reasons behind this i have not been able to find out but it might historicaly have something to do with. Alum is the third most important substance in marbling after the gall and the size. There are a lot of different recipes for mordanting fabric prior to marbling but with my natural dyeing experience to guide me i d like to share my method.

Continue in this fashion adding color over color and letting paint spread out and form random shapes. Mix 3 tablespoons alum per 1 quart of hot water. With a coffee stirrer drop paint onto several spots on surface of size. In recent posts i ve looked into the types of alum and the quantity necessary for marbling paper.

Stir for 2 or 3 minutes till the alum is dissolved. Hang to completely dry before marbling. Let pigment spread out 2 to 3 inches. Alum is a mordant meaning it causes color to set on the paper.

Corn starch in 1 2 cup cold water. Make a double recipe of liquid starch by dissolving 4 tbs. Pour this mixture into a large marbling tray. 1 gallon of water to 8 tablespoons 1 3 cup of alum.

Marbling colors are too thick. 1lb of alum 24 tablespoons of alum. The trick to adhering the paint to fabric is presoaking the fabric in alum. Directions for fabric marbling.

Let the alum dissolve then soak the fabric for 20 minutes. The size might be too thin or old. Dissolve 2 tsp alum in 3 4 cup water. Buy pure aluminum sulfate from an art supply store or online.

You can do this the night before. The recipe we use for the alum is. Put one third cup of alum into one gallon of water or you can cut this recipe in half. The marbling paints sink to the bottom of the tray.

Add water to thin the colors skim the marbling base then test. Add 1 teaspoon of methocel methocelulose powder per gallon of solution or throw out and start a new recipe. 1lb alum 3 gallons of alum mixture. It makes the colours adhere to the paper.

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. If you marble on the wrong side the pigments will not properly adhere to the paper. Now let s turn to fabric marbling. Without it the marbling will be faint and blurry.

A 20 x 26 will hold approximately 2 gallons of water. In this case you should apply the alum by the soaking method.