Berryman offers two different Chem-Dip formulas. One product is very dark amber/brown in color and is intended for general consumer use. It is available only in 1-gallon paint-style cans as part #0996. It is safe on for use on plastic, rubber, and most paints and metals. When using this product, please limit soak times to 30-60 minutes per dip, and total soak time to 4 hours. The other Chem-Dip product from Berryman is professional-strength with an amber-colored bottom layer for cleaning and a yellow top layer to prevent corrosion and limit evaporation. This product is available in a ready-to-use fashion in 5-gallon cans as part #0905. It will adversely affect many types of rubber and plastic but is completely safe on all metals.