Bakelite is a hard, brittle thermosetting polymer, commonly known as Bakelite. High Mechanical Strength, tough wear resistance, dimensional stability, corrosion resistance, excellent electrical insulation performance. It is suitable for making insulating parts of electric appliance and instrument, and can be used in damp and hot condition. The main disadvantages of Bakelite are Brittleness, poor arc resistance, and the change of dielectric properties with frequency, so in the production of Bakelite, the method of modification is used to make up the shortage of Phenol formaldehyde resin. The properties of phenolic plastics can be improved by using a mixture of Phenol formaldehyde resin and other types of polymers. Common High Polymer compounds are: Polyamide Resin, polyvinyl chloride resin, nitrile rubber, polypropylene resin and so on. For example, the mechanical strength, heat resistance, dielectric property, acid resistance and water resistance of polyethylene can be improved after mixing with it, and the coloring property is better. Bakelite based on Phenol formaldehyde resin and nitrile rubber greatly increases the impact strength of the product. Bakelite, made from a mixture of Phenol formaldehyde resin and polyamide resins and inorganic fillers such as Mica and feldspar, has higher dielectric properties and can be used at high temperatures, frequencies and pressures.