A61 Glass Cleaner is an excellent, truly non-streaking glass cleaner. This formula is highly concentrated and powers through grime with ease, while having no surfactants that will promote streaking. Directions: Dilute 1 part A61 Glass Cleaner with 9 parts water. Mist on surface. Wipe or rub surface with clean towel or damp sponge. Wipe dry with clean towel, until towel remains clean. For heavy duty cleaning, allow time to penetrate and scrub surface if necessary.