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.