Primed several parts. Third system in use, this time etching solution (Turco WO-1, similar to Alumiprep) and chromate (Alodine 1001). Tried small parts first, used individual containers for the WO-1, Alodine and the water rinse after each step. Still have to work out the "soaking" time in each bath. Parts came out slightly yellow/golden coloured.