Quote Originally Posted by JOGARA View Post
I have left it in for 20-30 mins and even an hour. Same result as putting it in for 20 seconds.
Yep Anodizing > Rinse > Dye > Seal
Have not got to seal yet though...

I have directly connected my alligator clips to the part and it still didn't accept the dye. The power supply is 48V 5A so plenty and I have left it in for 2+ hours yesterday.

I believe my solution is around 20-25% acid to water.
My acid was only 85% though so I might add some more.

Calculated for my part 25V max, 2.7A for 72 mins.
Is your part electrically conductive across its surface after anodising?