Ceralun ceramic epoxy composite by Swarovski. This high-performance, two-component epoxy clay is very versatile and was developed for use with Swarovski crystals. Adheres to metal, glass, crystal, plastic, rubber, wood, cork and porcelain. Easy to mix, shape and mold. Mixing ratio is 1:1 for both components. Lasts up to a year when stored at room temperature. Hardens within 72 hours at room temperature. Working time is a maximum of 3 hours.