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Des-Case Blog

Varnish – Killing Quietly

Feb 12, 2020

Mark Barnes, our Senior VP in business development, recently had the opportunity to write an article about the mysteries of varnish for Efficient Plant. With over 21 years of experience in lubrication management, oil analysis and contamination control he shares valuable education about varnish and the effects it can have on equipment.

Varnish is an ubiquitous term used to describe the formation of deposits within a lubricated system. While that term might imply a single process at work, there are 20 to 30 lubricant degradation pathways. Each pathway involves complex tribo-chemical interactions and reactions between the lubricant base oil and additives, the system components such as pumps, valves, piping, coolers and filters.

Varnish is like bad cholesterol in the human body. Once too many deposits form in a manufacturing system, performance is impaired, resulting in reduced oil flow, sluggish operation, loss of system control, bearing deposits, and pump failure.

Read the full article HERE