Clean without






Varnish can be a dangerous menace in your system

See how VARTECH® industrial System Cleaner (ISC)

can help clean your system on varnish.



Man inspecting turbines for varnish Man inspecting turbines for varnish


How a varnish

problem starts

High operating temperatures in your system deplete protective additives in your oils and cause it to degrade over time. The results—oxidation by-products, contaminants and more—can start to precipitate out of the oil. When they do, these deposits attach themselves to equipment surfaces and build up over time, forming a coating of varnish that quickly begins to do its dirty work.

The real business impacts

Varnish buildup reduces a lubricant’s heat transfer properties and causes your system to run hotter and hotter. The consequences won’t just threaten your equipment—they’ll hit you on your bottom line.

De-rated equipment, unplanned shutdowns, inefficient operation

Increased maintenance labor, management and spending

Higher costs and lost profits for the business owner



                   The issue with conventional cleaners…

Chemical cleaning is the most common method to clean systems of varnish,

with most conventional industrial system cleaners being applied at the end of oil life.

But due to several compatibility problems in conventional cleaners, they can swell

and damage seals, plug  system filters and—if not removed in a timely manner—

may redeposit the varnish in your system.





  • Can cause critical component failures, system damage


  • Contributes to lubricant performance degradation 


  • Requires a system flush 



Conventional cleaners Conventional cleaners


           New option: System component

             and lubricant-compatible cleaner



                     Use a new, state-of-the-art system cleaner that doesn’t damage system seals and does

                     prevent varnish deposits from re-forming during the cleaning process. It does not need

                     to be used in conjunction with a varnish filtration system. And if traces remain in the

                     system after cleaning, it minimally impacts the performance of the new oil.

New Option background New Option background


VARTECH® Industrial

System Cleaner (ISC) 

VARTECH barrel VARTECH barrel

Designed with triple-action varnish removal technology. When added to the in-service oil at its end-of-life, VARTECH® ISC works quickly

and effectively to help you restore equipment to peak performance for outstanding reliability and productivity. It’s quick, effective and easy to use.


Introducting Vartech Introducting Vartech
When it’s added to end-of-life, in-service oil, VARTECH® ISC:

Cuts through hard varnish to remove it as micro-sized varnish particles

Captures varnish particles in a protective barrier to enable effective removal from the system without re-depositing on the equipment

Provides compatibility with in-service oil for optimum operational flexibility and system performance during the cleaning cycle


Pair it with a premium partner:

GST Advantage® RO 

GST barrel GST barrel

VARTECH® ISC is designed to be
compatible with multiple

lubricant brands. But if you

choose to upgrade to GST Advantage® 

RO , you’ll gain the added advantage 

of using a turbine oil that’s also engineered

to minimize varnish deposits.

Defeat destructive varnish to optimize turbine performance. Interested in VARTECH® ISC?