No passwords, no registration, no paywalls, no popups, no AI

As an Amazon Associate & eBay Partner we earn from affil links

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

Search our quarter-million Q&As

Home of the finishing HOTLINE since 1989

-----

Inhibiting rust formation on polishing pins

2003

I am using light weight metal pins and 1/8 ball bearings to wet polish small pewter castings and this works great. My problem is that I only need the machine a couple of days a week and if the pins and bearings are left wet they rust.
Drying 10 lb of metal is very difficult, can I add anything into the water between operations that will stop the rusting?

Any suggestions would be very appreciated.

Gary McGee
hobbyist - Lower Hutt, Wellington, New Zealand

Hi, Gary. Anything at all that is either alkaline or oily will help somewhat. If the product needs to be food-safe, magnesium hydroxide or even baking soda [in bulk on eBay or Amazon [affil link] will help a bit. Chemical suppliers can offer metasilicate and other formulations. Good luck.

Regards,

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Need quick confidential answers? $25
Need project assistance? $100/hr.
October 14, 2009

Sorry! Finishing.com is temporarily Read-Only.
Ted Mooney is retiring but I have several offers to take it over.
We're working hard to make sure we find it the best new home.

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: