Premium quality; formulated from the highest quality advanced acrylic resin. It will not become brittle and crack, nor will it discolor or yellow with age. CytoSeal dries rapidly, allowing examination soon after application. It can be used with oil immersion objectives and in fluorescent procedures. Slides will not stick together and the medium will not "cold flow" to the edge of the slide during long term storage. CytoSeal can be dissolved in toluene or xylene. An antioxidant has been added to the formulation to prevent fading of slides.