The Mantrose-Haeuser Co., Inc is the name of one of the industrial (non-consumer) businesses of the Zinsser Co., Inc Zinsser, in turn, is owned and operated by RPM International Inc. which is based in Medina, OH. RPM stock is traded on the NYSE under the symbol RPM. Mantrose-Haeuser natural, edible coatings and films provide a variety of functional and aesthetic benefits for confections, pharmaceuticals, vitamins, health supplements, fruits, vegetables, seeds, nuts, baked goods and other food p...