Characteristics of insects film 
 ⑴ only thermosetting natural resin, at room temperature, soluble in alcohol, heated to 125 ° C for three hours but not soluble in alcohol. 
 (2) do not dissolve in water, dissolved in alcohol and other organic solvents, can be quick-drying luster, decorative, durable film on all kinds of things 
 Body surface shows a high degree of adhesion, sturdy and flexible, waterproof, anti-rust and corrosion resistant protective effect from the object. 
 ⑶ resistant to ultraviolet light. 
 (4) in an alkaline solution into a good film with high adhesion. 
 ⑸ can resist hydrocarbon solvents such as gasoline and other oil-role. 
 ⑹ non-conductor of a low thermal expansion coefficient, is a good insulator. 
 Widely used in defense, electrical, plastics, paints, pharmaceuticals, food and other industries.