SermeTel 249® is an aqueous inorganic metallic coating that may be matured at room temperature. The coating contains aluminum and zinc powder in an inorganic binder system. SermeTel 249 is useful for corrosion protection, medium high temperature cycling and oxidation resistance. The coating is supplied ready to use, requiring no additions. It can be applied by spray, brush or other suitable methods. In addition to ferrous alloys, SermeTel 249 can be applied to cellulosic materials, zinc, aluminum, copper, brass, bronze, ceramics, plastics, and other building materials. The coating can also be used as a touch up for damaged SermeTel basecoats such as SermeTel W®.