[hdway]

New to the Caswell Electro Plating system, got my equipment set up about 3 weeks ago and tried some test plates. Did 5-1.5" square plates with copy cad then did two with Yellow chromate and two with Black chromate, they all came out very acceptable.
Today I got set up to do a bunch of bolts and screws with copy cad and black chromate using a plastic plating basket I made with copper wire laced through the holes in the plastic on the bottom and 1" up the sides to provide continuity. Plated them with zinc for 20 minutes and then rinsed, 3 second dip in 5% muratic rinsed and into black chromate solution, they would not turn black just black haze and streaks. Backed right up bead blasted, degrease, rinse, pickel, zinc plate, rinse, pickel, rinse and black chromate. This time they just got a yellow tint to them, tried redoing just keeps comming out the same.
Any idea's