I'm not exactly sure of what you are doing, but I have a couple of comments nevertheless. I wouldn't dilute the rusting solution. There is really no need to. I use Laurel Mountain but Pilkingtons is fine. I wouldn't use Mark Lee's express blue. Stick to Pilkingtons or Laurel Mountain. Dilution of the ferric chloride at 15% is not locked in stone. I use a stronger etch. You might have to experiment to get it right. But I would recommend a stronger etch or more etching time in the solution.
Also, polishing at 400 grit is not recommended for Parker grades under CHE. Parker did not polish the lower grades this fine. I polish to 220 grit on Trojans and 320 on VH through DH.
Feel free to send me a PM if you have more questions as you work the process.
|
Threaded Mode