Alum Recipe For Marbling

Buy pure aluminum sulfate from an art supply store or online.

Alum recipe for marbling.

Let the paper dry overnight or speed drying with a blow dryer. Alum is a mordant meaning it causes color to set on the paper. Stir for 2 or 3 minutes till the alum is dissolved. If you marble on the wrong side the pigments will not properly adhere to the paper.

With a coffee stirrer drop paint onto several spots on surface of size. You can do this the night before. In recent posts i ve looked into the types of alum and the quantity necessary for marbling 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.

The size might be too thin or old. Add 1 teaspoon of methocel methocelulose powder per gallon of solution or throw out and start a new recipe. Without it the marbling will be faint and blurry. 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.

It makes the colours adhere to the paper. Marbling on tragacanth does not requore alum but the paper must be dampened slighly to accept the colour. Put one third cup of alum into one gallon of water or you can cut this recipe in half. Add another color dropping paint into middle of previous color if desired.

Let pigment spread out 2 to 3 inches. Hang to completely dry before marbling. Lay a sheet of paper on the surface of this alum water. Dissolve 2 tsp alum in 3 4 cup water.

The reasons behind this i have not been able to find out but it might historicaly have something to do with. Directions for fabric marbling. The trick to adhering the paint to fabric is presoaking the fabric in alum. 1lb of alum 24 tablespoons of alum.

The recipe we use for the alum is. 1lb alum 3 gallons of alum mixture. Pour this mixture into a large marbling tray. Let the alum dissolve then soak the fabric for 20 minutes.

Corn starch in 1 2 cup cold water. Mix 3 tablespoons alum per 1 quart of hot water. Marbling colors are too thick. 1 gallon of water to 8 tablespoons 1 3 cup of alum.

Make a double recipe of liquid starch by dissolving 4 tbs. Alum is the third most important substance in marbling after the gall and the size. In this case you should apply the alum by the soaking method. Now let s turn to fabric marbling.

A 20 x 26 will hold approximately 2 gallons of water. The marbling paints sink to the bottom of the tray.