Berryman offers two different Chem-Dip formulas. Our product for general consumer use is available in 1-gallon paint-style cans as part #0996 and is safe on for use on plastic, rubber, and most paints and metals. However, it can react with some grades of aluminum and aluminum alloys. If you use this product and have an aluminum-based component (which is quite common in small carburetors), please limit soak times to 30-60 minutes per dip.