Use bleached shellac to create clear finishes and seal models before making flexible molds. To create a solution from the flakes, dissolve in alcohol (methanol, isopropyl alcohol or denatured alcohol) and allow to sit for a day or so, mixing occasionally until the solution becomes clear and the flakes are fully dissolved. Decant the liquid from any residue and use as needed.
Mixing Ratio: Approximately 3-4 lbs. of shellac to 1 gallon of alcohol.