No passwords, No popups, No cost, No AI:
we earn from 'affiliate link' purchases, making the site possible

Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ

finishing.com -- The Home Page of the Finishing Industry

  The authoritative public forum
  for Metal Finishing since 1989

-----

HOW DO I ACTIVATE MY POT METAL

2000

We restore pot metal parts for antique cars and other things. After grinding the metal and polishing it and filling in whatever pits can't be removed with silver solder there are still white looking spots commonly referred to as "dead spots". We clean and activate in diluted Sulfuric acid, Cyanide copper plate, and Acid copper plate. Then we take it back to the buffing room and buff. The white spots or "dead spots" will bubble and blister. These spots do not occur in all pot metal only in select pieces. We have tried Fluoboric Acid with a 20% solution. I need to know if there is a way to activate these spots without all the drilling and filling which is very time consuming. And if anyone knows exactly what these spots are please let me know.

Thanx in advance

Barbey

Barbey Richardson
- Wellford South Carolina

(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories: