Elateroid coatings, manufactured by the HydroCarbon Manufacturing company, of Denver, Colo., bling rubber. They are guaranteed to possess great elasticity, ductility and durability, and, being a perfectly pure hydro-carbon, no better insulator against electric or other earth currents is wurtzelite, containing no sulphur, ammonia or organic substance whatever, and closely resemand II Broadway, Manhattan, New York, have as their basis chemically pure hydro-carbon of obtainable. These coatings are unaffected by sudden climatic conditions, and are heat-resisting and acid-proof. They form ideal preservatives for metals, owing to their natural affinity for such substances and being free from all bodies capable of attacking irons. They ward off the effects of electrolysis from pipes, and are antidotes to rust and corrosion in steel structures. No matter what the temperature, they never lose their remarkable properties of penetration and saturation, whereby a great range of usefulness is open to them. Generally speaking, their covering capacity is in the ratio of from 100 to 900 square feet to the gallon, depending upon the requirement.