Thermal insulation is material that helps reduction of transfer of heat between objects. These materials are used all around you to keep heat from escaping or entering rooms or objects, and from protecting flammable objects from excess heat.
Insulating against heat exchange is a great way to reduce energy costs is buildings and transportation vehicles like trains and airplanes. Thermal insulation also protects against the change of the physical and chemical properties of nearby objects, which can cause damage and possibly injury.