Before firing, allow items to sit in a dust-free, warm room for several hours to dry. Ventilate the kiln well especially in the early stages of firing.The Gold must be diluted with appropriate thinner (diluent), ask for details. Apply by brush onto glazed earthenware, glass, and porcelain. Airbrush application for professional use only. Application should always be on glazed objects, thoroughly clean and should be kept moisture free. Designate a brush for application use (to avoid contamination), and dip brush directly into bottle. Clean brush with the same diluent.
Feel free to ask for everything. I'll share my experience with you.