RK-7515M silicone antifoam is made of a special silicone grease system , which is developed in conjunction with aspecially designed polyether modified silicone emulsifying system.The new silicone grease system provides excellent balance of antifoaminng properties. The special emulsifying system ensures compatibility, dilution stability and excellent shear stability of system.Small addition can achieve the optimize result. It has very excellent foam control performance which is suitable for full synthetic metal cutting liquid, semi-synthetic metal liquid and emulsified oil system.