Mainly used as a solvent for inks, paints, inks, textile dyes, textile oils, and can also be used as a cleaning agent in the production of liquid crystal displays; it is a low-toxic high-grade industrial solvent with excellent performance, and has both polar and non-polar substances. Strong dissolving power, suitable for high-grade coatings, ink solvents for various polymers, including urethane, vinyl, polyester, cellulose acetate, alkyd resin, acrylic resin, epoxy resin and nitrocellulose Su et al. in. Propylene glycol methyl ether propionate is the best solvent in coatings and inks, suitable for unsaturated polyester, polyurethane resin, acrylic resin, epoxy resin, etc.