... chemicals. General:Rustoper (corrosion terminator)VCI powder, a kind of water soluble antirust powder that may be used in both dry process ... of pressure vessel such as boiler, VCI powder mixed with water is often used for hydrostatic test. Features/Advantages: 1 The ... in a wet process, prepare the powder into 1%-2% water solution, and then perform spraying, brushing, flushing or soaking procedures ...