Synthetic Lubricants

Overview
Polypropylene glycols are excellent candidates for synthetic lubricants. They provide natural lubricity, excellent low temperature properties, high viscosity indices and good additive compatibility. The performance of these products can be improved using, for example, anti-oxidants, corrosion inhibitors, anti-wear and extreme pressure additives.

Products
The following products can be used as synthetic lubricants. Although each product has unique properties based on molecular weight and the monomer used, they all share some common properties.

Specific Applications
Polypropylene glycols display minimal tendency toward the formation of varnish and coke deposits at high temperatures and are used as carriers for solid lubricants, such as graphite and molybdenum disulfide. Formulated with thickeners, PPGs are used as greases in high temperature applications where mineral oil formulations would result in coke-type deposits.

Polypropylene glycols are used in synthetic lubricants including:

• compressor lubricants
  
• hydraulic fluid lubricant
  
• greases
  
• metalworking fluids
  
• gear lubricants
  

In Europe, see SYNALOX* fluids. Also see UCON™ Fluids. CARBOWAX™ PEGs and MPEGs are also used in lubricant applications.

®™^* Trademark of The Dow Chemical Company ("Dow") or an affiliated company of Dow