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  • Propylene Glycol

Product Overview

Propylene Glycol Industrial Grade (PGI) from Dow is an important intermediate in the production of alkyd resins for paints and varnishes. It is the preferred propylene glycol for manufacturing high-performance, unsaturated polyester resins for many uses such as:

  • Reinforced plastic laminates for marine construction
  • Gel coats
  • Sheet molding compounds (SMC)
  • Synthetic marble castings

Propylene glycol is also used as a solvent in printing inks, as a preservative in floral arrangements, and as a stabilizer in hydraulic fluids.


Unsaturated Polyester Resins
Coolants and Antifreeze
Aircraft Deicing Fluid
Hydraulic and Brake Fluid
Heat Transfer Fluids
Paint and Coatings
Other Applications


PGI is available from Dow in various quantities. Please contact us for details on availabilities in your region.

Physical Properties*

Physical Properties Units Propylene Glycol Industrial Grade (PGI)
Chemical Name 1,2-propanediol
Formula C3H8O2
CAS Number1 57-55-6
EINECS Number 200-338-0
Molecular Weight 76.1
Boiling Point 760 mm Hg, °F 369.3
760 mm Hg, °C 187.4
Vapor Pressure mm Hg, 77°F (25°C) 0.13
Evaporation Rate (n-Butyl Acetate = 1) 1.57E-02

1 Chemical Abstract Service Number
*Note: These properties are laboratory results on pure compounds or are typical of the product. Typical properties should not be confused with, or regarded as, specifications.

Technical Literature

Safety Data Sheets
Sales Specifications
Technical Datasheets
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Propylene Glycol Industrial Grade
English (91KB PDF) Español (121KB PDF) Português (112KB PDF) Français (94KB PDF) Italiano (28KB PDF) Deutsch (111KB PDF) 中文 (209KB PDF)

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