Chemical name:

polyalkylene glycol (PAG)


specialty products, lubricants & functional fluids

Markets and applications:

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


lubricants, industry gear lubricants, textile lubricants, metal working fluids


PAG , water insoluble


PCC Rokita SA Polyols Business Unit

CAS No.:



Rokolub 220VI is a polyether polyol obtained by means of the starter propoxylation and ethoxylation. The product has liquid form ranging from transparent to light yellow colour. It is water insoluble and contains (BHT free) antioxidants. The kinematic viscosity of the product (ISO VG 220) at 40°C ranging from 240 to 275 cSt and its viscosity index is high (viscosity index VI>190).

Rokolub 220VI may be used for production of synthetic lubricating oils as PAG type, group V, base stock, as well as a finished product. This polyol maintains its flowing power at the temperature below -30°C, which results in obtaining good low temperature properties. This makes the product suitable for year-round application without temperature limitations, especially wherever waterless lubricating systems for machines and mechanical equipment are required.

Based on its high quality Rokolub 220VI is suitable for food contact.

Main application advantages of Rokolub 220VI:

  • Reduced tendency for sludge forming enables maintaining cleanliness of the machines and equipment lubricated;
  • Reduced tendency for deposit or varnish forming compared to mineral oils;
  • Possibility of using the polyol as a lubricant for equipment operating under variable conditions, including at law temperatures (pour point Tp<-36°C);
  • Compatibility of Rokolub 220VI  with NBR and EPDM type elastomers and insolubility in mineral oils


Most frequent applications of Rokolub 220VI:

  • Lubricating oil used for gas compressors and refrigeration compressors;
  • Component for production of service fluids and metal working fluids in various industries;
  • Hydraulic fluids, base oil for gear lubricant formulations;
  • Anti-foaming agents;


Products made based on Rokolub 220VI 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:

  • Cleanliness, better lubrication and operation of machines and equipment;
  • Reduced tendency for deposit or sludge forming compared to mineral oils;
  • Possibility of using the polyol as a lubricant for equipment operating at low temperatures;
  • Compatibility with NBR and EPDM type elastomers;
  • Used as lubricating oil for gas compressors and refrigeration compressors;
  • Component of hydraulic fluids and anti-foaming agents;
  • Used as base oil for gear lubricant formulations;
  • Component of service fluids and metalworking fluids;


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