Varnish deposits can cause absolute havoc when they form in turbine oils, control valves and other machinery components, often leading to severe interruption to the smooth operation of the system.

Therefore, early detection of an oil’s varnish-forming potential is key to maintaining components operating at their optimum level. At WearCheck, we conduct a host of tests on turbine oil to measure its varnish-forming potential and also to determine the oil’s remaining useful life.

Once an oil is contaminated with varnish, the oil cannot simply be changed. The varnish must be removed properly, and the cause of the varnish formation identified, in order to prevent or minimise future varnish formation.

To learn more about measuring varnish-forming potential, effective ways to remove varnish, and how to identify the root cause of the varnish formation, please click here to view Technical Bulletin 62.

Published in Blog

Social Media links

More stories


Lube Tip 14: Thermal failure in lubricants
Lubricants can thermally degrade for a variety of reasons and causes. Unlike oxidation, thermal failu...
1317 Hits
Talking Condition Monitoring
Dennis Swanepoel – WearCheck’s reliability solutions consultant, Mobius trainer and CAT IV gradua...
1346 Hits
We’ll be at African Utility Week 2019
WearCheck will once again be exhibiting at African Utility Week (AUW), which takes place in Cape Town...
1318 Hits
Oil analysis training in May - book today - don’t delay!
Calling all Capetonians - WearCheck is running these training courses this month: Oil Analysis 1 (14t...
1548 Hits
CM training keeps Malawian wheels rolling
WearCheck technical support consultant Quentin Gustav von Kleist recently travelled to Nchalo in Sout...
1185 Hits