Main in colophony of not saturated polyester and application meeting involves a few auxiliary, the auxiliary of different type can answer the improvement with different product to nod, basically be anti-foaming agent, embellish activator of wet dispersive agent, surface, volatilize depressor, stream change agent of auxiliary, coincidence and processing aid, apply extensively in all sorts of product domains. 1 anti-foaming agent 　 the principle to anti-foaming agent, basically be quits the firm bubble action of the material that aid bubble 2 embellish are wet embellish of dispersive agent 　 is wet the principle of dispersive agent basically is to reduce the interaction force between particle, solve garrulous is caused to coagulate as a result of interaction force between particle, have the effect that reduces viscosity at the same time. Its type cent solves garrulous for only luscious group model, garrulous of solution of double luscious group and garrulous of solution of much more luscious group. To much more luscious round control garrulous coagulates model auxiliary, main effect principle is adsorptive in particle surface, have intense concatenate effect, height is prevented heavy, reduce float lubricious color separation 3 styrene volatilize depressor 　 styrene volatilizes depressor is main the principle is a film is formed in colophony surface, the type differs in the meantime volatilize depressor auxiliary can form distinct effect in colophony surface, some products can form olefin and adherent force accelerant in colophony surface, and the product that has a few kinds can form the special candle that contains polarity part in colophony surface; The principle of coupling agent of 4 coupling agent is to contain filling kisses and reach colophony a specific element quantity of reaction radical group, raise the adhesion between filling and colophony, rise be able to bear or endure chemical function and better mechanical performance, its advantage depends on managing cost, organic meeting replaces costly pretreatment filling; Basically there is no lack of to muti_function processing aid the following effect: Agent of drawing of patterns, raise burnish, reduce mist shadow, superior surface quality, reduce systole, prevent chromatic and detached, even.