1. The film-forming aid must be a strong solvent for the polymer, which has excellent film-forming efficiency for a variety of water-based resins, and has good compatibility. Will affect the appearance of the paint film and its gloss;
2. Low odor, low dosage, excellent effect, good environmental protection, and certain volatility, effectively adjust the drying rate to facilitate construction;
3.Excellent hydrolysis stability, low solubility in water, its volatilization speed should be lower than water and ethanol, it should be kept in the coating before film formation, and it must be completely volatilized after film formation, without affecting the film performance;
4. After being added to the latex system, it is adsorbed on the surface of the latex particles, which can have excellent coalescence properties for the adsorption of the latex particles, and fully dissolve and swell the aqueous resin without affecting the stability of the latex particles.