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Propylene glycol’s widely industrial use

October 24,2023

Propylene glycol (PG)  is a versatile, non-toxic, water-soluble liquid used in a wide variety of applications, including the materials industry. 

In this article, we will explore the various ways in which PG is used in the materials industry.

Polymer production

Polyurethane is a material widely used in insulation, cushioning and rigid foam applications. It is used in the production of furniture, mattresses, insulation panels and automotive interiors. The addition of PG in polyurethane production improves the mechanical and thermal properties of the material.

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Adhesives and sealants

PG is used as a plasticizer and solvent in the production of adhesives and sealants. It also acts as a humectant to prevent adhesives and sealants from drying out, thereby extending their shelf life. Adding PG to adhesives and sealants improves the material's flexibility, adhesion and water resistance.

Paints and Coatings

PG is used as a solvent in the production of water-based paints and coatings. It also acts as a coalescing agent to improve the film-forming properties of the final product. Adding PG to coating formulations improves adhesion, leveling and gloss of the final product.

Textile

PG is used as a wetting agent and solvent in textile production. It is used to improve the absorbency of dyes and other chemicals used in textile production. The addition of PG in textile production increases the softness and durability of the material.

Antifreeze

PG is commonly used as antifreeze in the materials industry. It is added to water to lower its freezing point, thus preventing it from freezing at low temperatures. Antifreeze made from PG is commonly used in the automotive industry, as well as in the production of refrigeration and air conditioning systems.