[Inferno]

Here is my preparation process:

First dip in acid until all the oil zinc is gone
Rinse in DI water
Dry
Polish with a wire wheel
Dip in acid for a couple of minutes
Rinse
SP degreaser
Rinse
To plating bath

If my parts where preped poorly wouldn't the zinc fail to adhere? The zinc seems durable. Is there a film on the freshly plated parts that causes the chromate not to adhere?

I have been going from the plating bath to a rinse then directly to the yellow chromate.

Thanks for any advice, Ross