... For cleaning the wax of alloy, copper, iron, such as watchband, watchcase, jewelry, alloy and lighting. Feature:Density: 1.018PH Value: 8 ... .40Appearance: Darp Yellow Heavy Ropy LiquidApplication Guide:Density: 10-30ML ... For cleaning the wax of alloy, copper, iron, such as watchband, watchcase, jewelry, alloy and lighting.2. No sodium ...