Defoamer P290 designed for oil system like motor oil,lubricant ,hydraulic oil etc.

　　The strong mixing of foam with air will enhance the oxidation reaction, which will cause cavitation erosion and insufficient oil transfer in the circulation system, and even lead to non-lubrication.Such as internal combustion engine oil, hydraulic transmission oil, hydraulic variable speed oil, gear tank and other circulating systems, because of its intense agitation it is easy to produce foam.In addition to causing a loss of overflow or exhaust belt, it also reduces oil pressure and affects lubrication.Especially when the oil level is low, a large number of foam into the oil, so that reduce oil supply, and even plug the oil channel, interrupt lubrication and burn out parts.Hydraulic oil bubbling, hydraulic system pressure will be unstable, even gas resistance and stop work, on the machine tool will affect the precision of machining parts.The froth of turbine oil makes the oil circulation not smooth, the oil supply is insufficient, and the lubricating oil accelerates the oxidation deterioration.

　　Polyether antifoaming agent P290 is a kind of non-silicone antifoam agent, it is composed of polyether ester and synergist agent,It can be used in water based ,oil based/solvents system, stable and good effective in high temperature ,strong alkaline,high viscocity.This antifoam overcome the normal defoamer weakness of incompatible with emulsified oil, easy to mix with all kinds of lubricants,and will not floating on the surface ,high capability of anti-shear during the grinding proces,no floating oil when saponified oil mixed with water, will not lead clingage on the surface of machine. Long lead time for foam inhibition.