The Model 360 hand-held, high-speed, air-powered spinning nozzle from RFI Construction Products is used to apply fine-grain mortars, grouts, and epoxies to circular surfaces. It has the capacity to line 4- to 96-inch-diameter pipe, manholes, storage tanks and pipe fittings. Linings can range from 1/8 to 1 inch. Coatings go on with a controlled wall thickness, and the operator stays above ground to spray. 631-752-8899; www.rficonstructionproducts.com.