This is the application of foil as a decorative element to paper or a similar substrate. This is done through a stamping process where heat and pressure are used to adhere the foil onto the substrate. Typically a foil stamping machine operates at a temperature of 230° and uses pressures between 10 and 50 tons per square inch. The same machines that are used for foil stamping can also do embossing. (See illustration under embossing.)