Rust bluing

[HW777]

I have a few questions regarding rust bluing

Is slow bluing better for overall finish when using Hydrochloric acid

Does the vessel for boiling the parts need to to be stainless steel

Are there any other solutions used for quick blue other than Hydrogen peroxide

And what is the best way to plug a barrel prior to starting the process

Thanks in advance of any replies

Atb

HW55T

[Papa g]

I have a few questions regarding rust bluing

Is slow bluing better for overall finish when using Hydrochloric acid

Does the vessel for boiling the parts need to to be stainless steel

Are there any other solutions used for quick blue other than Hydrogen peroxide

And what is the best way to plug a barrel prior to starting the process

Thanks in advance of any replies

Atb

HW55T

Mark Lee express rust blueing solution as sold by brownells uk, I’ve had great results with this stuff
Follow the instructions to the letter you won’t go wrong. A length of 50mm plastic waste pipe sealed at one end place the treated items in it, boil a kettle of rain water pour it into the pipe making sure everything is covered & leave for 5mins, do this after every application works a treat, I would put some pics up but I don’t know how!

[wil95k]

Mick, (T 20) on here,wrote a good guide,I can't find the link sorry.maybe contact Mick.

[T 20]

Mick, (T 20) on here,wrote a good guide,I can't find the link sorry.maybe contact Mick.

Thankyou sir but I was working from your guide.

Here's the thread but unfortunately the photobucket links don't seem to work :-

http://www.airgunbbs.com/showthread....13#post5002013



All the best Mick

[Peter Dunkley]

Hi I use Blacknells solution works well. I do use a stainless boiling tank and boil in de ionized water. Dont know if a stainless tank is essential, I would think not they were rust bluing long before stainless was invented, I plug barrels with long threaded rod with lab bungs on each end held in place with nuts and washers. No need to polish with anything finer than 320 grit. De greasing is my mail hurdle
Best of luck
ALL MHO of course.

[lightning22]

I have a few questions regarding rust bluing

Is slow bluing better for overall finish when using Hydrochloric acid

Does the vessel for boiling the parts need to to be stainless steel

Are there any other solutions used for quick blue other than Hydrogen peroxide

And what is the best way to plug a barrel prior to starting the process

Thanks in advance of any replies

Atb

HW55T

You need to be careful with the acid when you are fume bluing, too strong or left too long you will etch the surface and could pit it.

The vessel doesn’t need to be stainless, I welded one up from mild sheet years ago and have used it many times. It’s replacement now I’ve tired of scrubbing the rust off it every time it gets dragged out, is a 24” stainless fish kettle bought for not very much on the auction site.

There are various solutions out there and plenty of recipes on the net, I use one I mixed up years ago from one of these recipes.

I don’t plug my barrels and I’ve never caused a problem yet, if I was I’d hammer in a dowel at each end and notch them for the suspension wires.

Rain water is good for this, you can also used the condensate from your dehumidifier.

[grieva]

I use a steam tank (plastic pipe) after rusting, ten minutes all done, using a wall paper steamer, never plugged the barrel had no problems cleaning with a pull through, have used brick cleaner to rust had good results.

[Papa g]

You need to be careful with the acid when you are fume bluing, too strong or left too long you will etch the surface and could pit it.

The vessel doesn’t need to be stainless, I welded one up from mild sheet years ago and have used it many times. It’s replacement now I’ve tired of scrubbing the rust off it every time it gets dragged out, is a 24” stainless fish kettle bought for not very much on the auction site.

There are various solutions out there and plenty of recipes on the net, I use one I mixed up years ago from one of these recipes.

I don’t plug my barrels and I’ve never caused a problem yet, if I was I’d hammer in a dowel at each end and notch them for the suspension wires.

Rain water is good for this, you can also used the condensate from your dehumidifier.

As above, I use rain water & I never plug barrels, I just blow every part including inside the barrel with the airline after boiling
Regards Graham

[BC312]

I done a P14 rifle which were rust blued before hot blueing which came out in the mid 1930s. I used Sal ammoniac
which was recipe for Enfield rifles at the time. I polished and degreased the parts and applied the solution on a swab stick and let the part rust no longer than 24 hours or when the part was rust orange. Then boiled in a stainless tank or pot, personally i dont think this mattered as they used iron tanks years ago, a stainless one lasts longer. Boil part for 20 minutes till black and card off but wear cotton gloves, ten rust again, applying the solution, rust the boil and card about 5 or 6 times or more and you will find the part becomes a dull grey after the last card. Then oil and just like magic the part will turn this blue black or black, depending on the rust formula used.