It is electrically conductive and thermally insulating. Thermal grease often consists of a silicone-grease base, along with added thermally conductive fillers. PTCs are constructed from thermally sensitive silicons or polycrystalline ceramic materials. Adamantane derivatives have found practical application as drugs, polymeric materials, and thermally stable lubricants. Previously, catalytically or thermally cracked gasolines were most susceptible to oxidation. Another type of thermistor is a silistor, a thermally sensitive silicon resistor. Temperature changes create thermally induced mechanical stress. Spunlaid is bonded by either resin or thermally. A refrigerator consists of a heat pump and a thermally insulated compartment. Staple nonwovens are bonded either thermally or by using resin. Commonly used on aluminum alloy cylinder heads, which are sensitive to thermally induced surface deflection. Once liquefied, it can be maintained as a liquid in pressurized and thermally insulated containers. It is applicable to relatively less polar and thermally less stable compounds. Cooking the thermally unstable whites turns them opaque, forming an interconnected solid mass. These compounds are some of the most thermally stable organophosphorus compounds.