Alum Powder For Marbling. You may apply the alum with a brush sponge or a spray bottle. Alum is a powdered presoak used to treat fabric or for marbling. Dissolve 2 teaspoons alum into 1 gallon of water to make a solution for fabric to be marbled.
Also sometimes referred to as potassium aluminum sulfate. Alum safety depends on multiple factors.
You may apply the alum with a brush sponge or a spray bottle.
Sodium aluminum sulfate is a type of alum that is used in commercial baking powder. It acts as a color binder or mordant fixing the colors to the paper permanently if alum is not applied to the paper before marbling most of the color will rinse off. Alum is the third most important substance in marbling after the gall and the size. Any form of aluminum sulfate could be called alum including toxic versions of the chemical however the type of alum you find used for pickling and in deodorant is potassium alum kal so 4 2 12h 2 o.
