Mobil Rarus™ PE R 220

Mobil industrial , Austria

Ethylene compressor oil

Product Description

Mobil Rarus™ PE R 220 is a premium ethylene compressor oil of ISO viscosity grade 220.  It is a polymer thickened, food-grade white oil based lubricant used for the lubrication of ethylene hyper compressors.


In the production of polyethylene, high-speed reciprocating compressors are used to compress ethylene gas to high pressures up to 3000bar. In these applications, the compressor lubricant can come in contact with the polyethylene in the polymerization process.  Under these circumstances, the lubricating oil required must be of acceptable purity and be known not to modify the properties of the polyethylene.


Mobil Rarus PE R 220 provides good lubrication of the compressor cylinders and is compatible with the polyethylene process.  It can be used to produce polyethylene where food contact can occur such as in food packaging.  Mobil Rarus PE R 220 offers good thermal and chemical stability.


Features and Benefits

Mobil Rarus PE R 220 is specifically engineered to help provide long and trouble-free compressor performance. Mobil Rarus PE R 220 is NSF H1 registered and meets the requirements of FDA regulation 21CFR 178.3570 for lubricants with potential for incidental food contact. Mobil Rarus PE R 220 also meets the requirements of FDA regulation 21 CFR 177.1520 for processing aids used in the production of olefin polymers intended for use in contact with food.

Mobil Rarus PE R 220 compressor oil offers the following benefits:

•  Suitable for applications where it can come in contact with food

•  High purity levels so that it will not modify properties of polyethylene

•  Excellent cylinder lubricant helping to prolong compressor life

•  Good thermal and chemical stability resulting in lower deposits and longer oil life



Advantages and Potential Benefits

High neutrality and low reactivity components

Do not interfere with catalytic polymerization reactions

High purity components

Do not induce any discolouration or odor in the final polymer

Components approved for food contact

Suitable for the manufacture of polymers for food packaging

Low polarity

Suitable in the manufacture of polymers for electrical insulation and thin bags (plastic bags)

Premium quality product

Reduced maintenance shutdowns



Mobil Rarus PE R 220 has the following applications

     •  High pressure ethylene compressors

     •  Compressors used in the production of polyethylene used in food contact applications


Specifications and Approvals

This product is registered to the requirements of:



This product meets or exceeds the requirements of:

FDA 21 CFR 177.1520

FDA 21 CFR 178.3570

Burckhardt VSB 1001180


Properties and Specifications




ISO 220

Acid Number, mgKOH/g, ASTM D974


Density @ 15 C, kg/l, ASTM D4052


Flash Point, Cleveland Open Cup, °C, ASTM D92


Kinematic Viscosity @ 40 C, mm2/s, ASTM D445


Pour Point, °C, ASTM D97

- 12 max

Saybolt Color, ASTM D156

+ 27 min

Water Content, mg/kg, ASTM D6304



Health and safety

Health and Safety recommendations for this product can be found on the Material Safety Data Sheet (MSDS) @

All trademarks used herein are trademarks or registered trademarks of Exxon Mobil Corporation or one of its subsidiaries unless indicated otherwise.


ExxonMobil Lubricants & Specialties Europe, division of ExxonMobil Petroleum & Chemicals BVBA. 
This information relates only to products supplied in Europe (including Turkey) and the Former Soviet Union.

B-2030 Antwerpen

Typical Properties are typical of those obtained with normal production tolerance and do not constitute a specification.  Variations that do not affect product performance are to be expected during normal manufacture and at different blending locations.  The information contained herein is subject to change without notice. All products may not be available locally. For more information, contact your local ExxonMobil contact or visit
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