Protective coatings are essential to save wind towers from corrosive atmospheric effects. At least three Industrial sprayers from Graco, Minneapolis, Minn., are used in paint booths at wind-tower manufacturers to apply protective coatings to interiors and exteriors of wind-tower sections. For example, the company’s Xtreme Sprayers with NXT Technology are air-operated yet airless sprayers built to handle the toughest single-component, protective coatings and corrosion-control materials. The design is often used to apply the zinc primer to wind towers. NXT air motors offer proven durability and are available with a monitor that tracks and records volumetric flow and material use.
Xtreme Mix Plural-Component Sprayers combine two-component coatings in a manifold close to the airless spray gun, thereby eliminating pot-life issues and cutting material costs. The design lets users switch between many ratios (1:1 to 10:1) with the turn of a key instead of mechanically reconfiguring the system. This portable, simple-to-use sprayer is often used to apply epoxy and urethane coatings to wind towers.
Lastly, XM Plural-Component Sprayers apply high solids plural-component coatings. The XM model provides precise ratio control, lets users download historical spraying data, and handles a wide range of two-component materials, including epoxies and urethanes. The configurable unit lets users start with a base model and then select accessories including material hoppers, hopper heaters, transfer pumps, agitators, hose rack kits and casters.