Propylene glycol: unsaturated polyester edited by dicarboxylic acid (or anhydride) with a diol prepared by the condensation of unsaturated linear thermosetting resins. The polyester in a liquid vinyl monomer (e.g. 18% to 40% styrene or a mixture of styrene and methyl methacrylate) was crosslinked cured propylene glycol polyester resin, and become integrated structure. Propylene glycol: Features editing process performance. This is the greatest advantage of the unsaturated polyester resin. Can be cured at room temperature and atmospheric pressure forming propylene glycol manufacturer, process performance and flexible, especially for large-scale manufacture of FRP products and live. After curing resin good overall performance. Mechanical properties of epoxy resin slightly lower, but better than the phenolic resin. Propylene glycol cosmetic corrosion resistance, electrical properties and flame retardancy by selecting the appropriate grade of resin to meet the requirements, the resin color light, may be made of transparent products. Varieties, adapt to a wide, low prices. The disadvantage is that the shrinkage upon curing is large, short shelf life. Industrial grade propylene glycol | Wei Connaught Chemical (certified) | Zaozhuang propanediol by Wei Connaught Chemical Co., Ltd. Qingdao. Qingdao Wei Connaught Chemical Co. (www.qdweinuo.com) is Qingdao, chemical products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Wei Connaught Chemical leadership with the staff warmly welcome all inquiries negotiations to create great promise a better future for the chemical.