Dynaprep AE Additive #1 is an aluminum etch additive formulated to prevent sludge and scale while significantly extending the etch bath life. Dynaprep AE Additive #1 provides better bath control and allows the operation of the etch bath at higher levels of dissolved aluminum. This reduces the necessity of dumping or decanting the tank. This, in turn, reduces waste treatment costs versus straight caustic soda or other proprietary etches. Additionally Dynaprep AE Additive #1 is very cost effective as it is designed to be used with plain caustic soda.