OptiBond Universal Adhesive - Bottle Kit: 5 ml OptiBond bottle, 3 g Gel Etchant, 25 Mixing Wells & 3 Unidose Applicators. Single component, light-cure adhesive, providing excellent adhesion to a variety of surfaces and substrates for both direct and indirect applications. Can be used in Self-Etch, Selective Etch, and Total Etch techniques. Bottle Kit