Designed to apply materials to recessed openings, the RotoCoater® evenly coats the inner surface of bores and other interior spaces. The unit can apply a controlled bead as well. The RotoCoater® 750 uses a bigger and more powerful air motor than the 500 to spin a larger dispersion cup which is inserted into a recessed area. The attached Sureshot® valve then delivers a metered amount of material to the cup that evenly coats the inner surface of the bore. The dispersion cup prevents overspray and applies a uniform layer of material. The RotoCoater® can be used with a wide-range of adhesives, sealants, oil or just about any liquid material. Each RotoCoater® 750 is customized for each application. Complete systems can be designed that apply materials to multiple bores in one cycle simultaneously.