CLEANING 

"I require a menial to clean it now and then."

The cleaning of structural steel is a problem for engineers, and yet common sense tells us, as paint-makers, that heat of sufficient degree to evaporate any moisture that may be in contact with the metal, or to burn up any grease that may rest upon it, is, perhaps, the best method of preparing the surface of structural steel properly to receive a covering of paint. In repainting old structures, all dirt, loose scale, and dead paint should be removed with wire brushes, or chisels made of old files, then all rusty places soaked with benzine, and a hot-blast blow-torch flame applied to burn out all the

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