Authoritative Answers, Fun, & Aloha -- no cost, no passwords, no popups
(as an eBay Partner & Amazon Affiliate we earn from qualifying purchases)

Home /
T.O.C.
Fun
FAQs
Good
Books
Ref.
Libr.
Adver-
tise
Help
Wanted
Current
Q&A's
Site 🔍
Search
pub     mobile?
Metal finishing Q&As since 1989

-----

Shotgun refinisher needs to get rust off hard-to-reach spots





What would be the best way to get rid of rust from the inner portions of shotgun receiver? I've just begun a refinishing job with a friend's single barrel 12 ga and I'm relatively new to this. I plan to use the Swiss Arsenal W+F 1877 Bern, rust- blue solution/process which appeared in this forum some time ago.The solution works beautifully on test pieces. Getting the rust off from the exterior is no problem with #120 Silicon-carbide paper, gradually moving down to #400. My only problem is with getting the rust (pretty severe) from the innards of the receiver. It's hard to stuff any abrasive into tiny slots like the trigger/hammer slots. I have a set of needle files and I'd considered using them but didn't do so for fear of filing off critical tolerances.I also read somewhere that a 1:7 solution of Nitric acid and water respectively, would be a good rust removal agent- does it work? I thought I'd ask here first.

MOA LONGKUMER
hobbyist - SHILLONG, MEGHALAYA, INDIA
2004



2004

Simple, non toxic and good rust remover:

1 lit water 50 gm citric acid [on eBay or Amazon (adv.)] add some ammonia [on eBay or Amazon (adv.)] 25%,solution pH must be 3,5! (80 °C temp., cold solution works too, but slow).

Good luck!

Goran Budija
- Zagreb , Croatia



simultaneous replies 2004

Most any acid will remove rust, mild acids are better because they will attack the base metal the least. To give you an idea of just how mild: I've used store bought lemon juice to clean up a bike for my Grandmother before. Worked pretty well too...

Good luck,

Jim Gorsich
Compton, California, USA



Thank you Mr.Goran Budija, I'd like Just a few clarifications - How do I work the solution on the rust? Simple application? Lots of it or do I just dampen the areas? And what would be the time period for the process? (The rust in the slots seem to be pretty severe- somewhat crusty) Or do I have to immerse the whole part into the solution? I'd appreciate the guidance.

Regards,

MOA LONGKUMER
- Shillong, Meghalaya, India
2004




Hi all,

Thank you for all the suggestions. Jim I'll give the Lemon Juice treatment a try with the next shotgun I get. Nice idea I never thought about it! Thank you Mr.Sishani, for the kind suggestion. By artist blasting, do you mean those air-brushes used in art/painting? Thanks Mr.Budija, since I've got all the required stuff at hand, I'll give your formula a try first. I've got some ammonia Solution -25%, Specific Gravity- 0.91 but no Ph rating printed, how do I find out that? Elsewhere in this form I had come across a Bluing(?) formula you had put up. Once the solution is ready, what is the process like? Immersion? if so how long? How many times?

MOA LONGKUMER
- Shillong, Meghalaya, India
2004




(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:

Finishing
Jobshops
Capital
Equipment
Chemicals &
Consumables
Consult'g,
& Software


About/Contact  -  Privacy Policy  -  ©1995-2024 finishing.com, Pine Beach, New Jersey, USA  -  about "affil links"