The activator is a pretreatment liquid used with sublimation coating fluid to enable proper curing.It must be mixed with sublimation coating liquid before application and is not intended for direct use. This activator is compatible with sublimation coating applications on mug, glass, ceramic, wood, crystal, metal, acrylic, and PVC surfaces. The liquid is colorless and transparent, with no odor.Available capacities are 50ml, 30ml, and 15ml.Shelf life is 12 months when stored properly. Each package includes one bottle of activator (50ml, 30ml, or 15ml), one 10ml measuring tool, one 30ml measuring cup, and one brush.