finishing.com -- The Home Page of the Finishing Industry
A website for Serious Education, promoting Aloha,
& the most FUN smiley you can have in metal finishing

HomeFAQsSuggested
Books
Help
Wanteds
Advertise
on this site
FORUM
current topics
topic 31068

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


(2004)

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 12ga 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 somewhwere 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)

Simple,non toxic and good rust remover:

1 lit water
50 gm citric acid add some ammonia 25%,solution pH mus be 3,5! (80 C temp., cold solution works too,but slow).  

Good luck!

Goran Budija
- Zagreb , Croatia


First of two simultaneous responses -- (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
Accurate Anodizing Inc.
supporting advertiser
Compton, California, USA
accurate anodizing banner


Second of two simultaneous responses -- (2004)

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


First of two simultaneous responses -- (2004)

You can immerse parts in solution (30 minutes to 8 hours-it depends on thickness of rust). If that is problem you can mix it with agar-agar, gelatine or celulose wallpaper glue to thick gel and use it on rusty points. Rinse well!

Goran Budija
- Zagreb , Croatia


Second of two simultaneous responses -- (2004)

Why don't you try artist blasting with a 500 mesh abrasives you can remove corrosion from a very small areas , all you need a pencil shape blasting gun and small compresser.

Good luck

Cair Shishani
Cair Shishani
aircraft maintenance - Al Ain, United Arab Emirates


(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



This public forum has 60,000 threads. If you have a question in mind which seems off topic to this thread, you might prefer to Search the Site

ADD a Q or A to THIS thread START a NEW THREADView CURRENT TOPICS

Disclaimer: It's not possible to 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 may be deliberately harmful.

  If you need a product/service, please check these Directories:

JobshopsCapital Equip. & Install'nChemicals & Consumables Consult'g, Train'g, SoftwareEnvironmental ComplianceTesting Svcs. & Devices


©1995-2018 finishing.com, Inc., Pine Beach, NJ   -   About finishing.com   -  Privacy Policy
How Google uses data when you visit this site.