Chemical name:

polyalkylene glycol (PAG)


specialty products, lubricants & functional fluids

Markets and applications:

lubricants and functional fluids, industrial lubricants, metalworking fluids, metallurgical industry, metalworking


lubricants, industry gear lubricants, metal working fluids


PAG , water insoluble


PCC Rokita SA Polyols Business Unit

CAS No.:



Rokolub 220 is a polyalkylene glycol (PAG) obtained by means of the starter propoxylation. The product has liquid form ranging from transparent to light yellow colour. It is water insoluble and contains (BHT free) antioxidants. The product kinematic viscosity at 40°C ranges from 220 to 250 cSt, and it maintains the flowing power at the temperature below -20°C, which results in obtaining good low temperature properties. This makes the product suitable for year-round application without temperature limitations.

Rokolub 220, known also polyalkylene glycol, is used for production of synthetic lubricating oils as  group V PAG base stock, as well as a finished product. Based on its properties Rokolub 220 is suitable for food contact.

Main application advantages of Rokolub 220:

  • Product compatible with NBR and EPDM type elastomers;
  • Used as base oil provides cleanliness of the equipment and machines lubricated thanks to the reduced tendency for deposit, varnish and sludge forming compared to mineral oils;
  • Very good adaptation properties for operation at low temperature;
  • High repeatability level;

Most frequent applications of Rokolub 220 include:

  • Lubricating oils for industrial gears;
  • Oils for metalworking fluids;
  • Waterless lubrication systems for machines and mechanical equipment;
  • Lubricating oil for gas compressors;

Products made based on Rokolub 220 are of high, repeatable quality. Based on the optimally developed manufacturing process this polyol is distinguished by very good parameters and a wide range of possible applications.

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Properties and applications:

  • Excellent product parameters of machine and equipment lubrication and protection result in their extended lifetime the equipment;
  • The polyol structure results in reduced tendency for deposit and sludge forming, which improves the efficiency and cleanliness of the machines;
  • Based on its very good low temperature parameters the product may be used in adverse weather conditions (pour point Tp<-36°C);
  • Very good anti-foaming properties;
  • Polyol used for production of lubricating oils for gas compressors, refrigeration compressors, and hydraulic oils;
  • Used as a component of metalworking fluids;
  • Waterless lubrication systems for machines and mechanical equipment;

Alternative names:

Show alternative names
D-Glucitol, ethoxylated and propoxylated (Hide)


PAG polyalkylene glycol synthetic lubricants base stock high viscosity index hypercompressor oil metal working fluids MWF hydraulic fluids lubricants
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