Varnish Removal

ISOCLEAN Fluid Conditioning
Conditioning Services can be performed on site, often while your system is running thus avoiding any costly downtime.
Contact Us
SHOCO Industrial Solutions
5135 East 74th Avenue
Commerce City, CO  80022
303.289.1677

Scott Hohnstein
Director
303.929.9114

Paul Johnson
Service Specialist
303.880.2275

Becky Hohnstein
Administration
303.929.9111


Varnish buildup can significantly increase maintenance costs and can sometimes result in costly unplanned downtime. Varnish is caused by oxidative and/or thermal degradation often when anti-oxidation additives in the fluid are at a low levels.
Given the right conditions, oil has the ability to “make” its own contamination leading to varnish formation. Varnish precursors often form in the oil as soluble impurities and are held in the oil until a saturation point is reached. The saturation point is a function of the type of base oil and the oil’s temperature. The best way to avoid problems is to remove these varnish precursors before thay can cause harm. If not removed, the soluble impurities become insoluble suspensions in the oil. Due to the very small size (less than 1 micron) of these particles, they are not filtered out with conventional filters which are in the 5 to 10 micron range. These impurities eventually begin to migrate to machine surfaces and start to build layers of soft gums. Over time as these layers age and cure into lacquer.

Since the varnish precursors are small And soft, they are resistant to removal by traditional mechanical filtration. There are 4 technologies that have been shown to be effective at removing insoluble varnish precursors before they can plate out. One method can remove even soluble precursors. The first method uses Depth Media Filteration which remove  insoluble varnish precursors by adsorbtion. The second is called Balanced Charge Agglomeration or BCA which splits a stream of fluid putting a positive chare on one stream and a negative charge on the other. When the streams are “mixed” the charged particles agglomerate into particles that can be removed by mechanical filtration. The third technology is Electrostatic Filtration where a positive an negative charges is applied to collection elements to attract precursors particles. The forth and newest technology in Ion Charge Bonding or ICB. This technology targets varnish precursors while still in the soluble state

Rocky Mountain Industrial Solutions is equipped to employ all of the above technologies in order to provide the best solution for our customer’s situation