NPG (Neopentyl Glycol)

Eastman NPG (neopentyl glycol) is a functional glycol widely used as a chemical intermediate in manufacturing polyesters, coatings, plasticizers, and synthetic lubricants. It features slightly hindered primary hydroxyl groups that provide rapid reactivity during esterification reactions and good resistance of end products to humidity, corrosion, chemicals, and stains. Its pendant methyl groups provide good solubility, while its symmetrical structure imparts high Tg and excellent thermal stability that imparts low resin color. Neopentyl glycol is commonly used as the sole glycol component. It can also be used with a modifying glycol to make polyester resins for industrial coatings and fiber-reinforced plastics. It is a choice chemical intermediate to create coil coatings for appliances and outdoor applications, as it provides thermal stability, durability, weathering, and stain resistance to the polyester resin formulation. Gel coatings made from neopentyl glycol have excellent weatherability and stain and water resistance. Neopentyl glycol is also used as a chemical intermediate for polyurethane coatings for a number of industrial, automotive, aerospace, and transportation applications. In the United States, Eastman NPG can be used as a reactant for coatings that come in contact with food, per federal food additive regulations. NPG is available in solid and liquid form. More specific grade information, such as boiling point, flash point, and melting point, can be found on the product pages below. IUPAC: 2,2-Dimethyl-1,3-propanediol; CAS number: 126-30-7; Molecular formula: C5H12O2