This product is a viscous assembly lubricant for components and equipment designed to use Skydrol aviation hydraulic fluids. Approved by airframe manufacturers, MCS 352B lubricates seals during assembly, preventing them from being damaged. It introduces no foreign material into the hydraulic system because it contains no silicone oils or any petroleum based products.
MCS-352B is the only lubricant approved for use in phosphate ester hydraulic systems. It contains chemical components that are actual ingredients used in Skydrol hydraulic fluids. By using MCS 352B for assembly, there is no foreign contamination introduced into the hydraulic fluid.