Sound and heat insulating material and method for manufacturing the same and articles made thereof

An inexpensive sound and heat insulating material that is able to prevent fine fiber granules generated by heat deterioration of the inorganic fiber as a main component of the base material from being scattered while maintaining the sound insulating property and heat resistant property. A coating layer of a lepidoflaky mineral is formed by coating, followed by drying, a water base dispersion of the lepidoflaky mineral by brushing, spraying, roll coating, dipping or showering on the surface of the base material comprising a heat-resistant fiber such as an inorganic fiber. Further exhaust manifold covers, engine exhaust pipes sound absorbing blocks made of, or utilizing the sound and heat insulting material.