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The patented MC-4TR® top-of-rail trackside applicator is based upon the MC-4® with a traditional rail base block mounting. It is ideal for applying Kelsan's KELTRACK® trackside friction modifier to the top-of-the-rail for reduction of lateral forces, noise, corrugations and ground-borne vibrations. The MC-4TR provides precise wayside top-of-rail application of friction control products in heavy traffic areas, the company says. The MC-4TR is part of the Friction Total Management™ offering of lubrication/friction management products and services.