Making a Set of Mini Pallet Toe Clamps for the Milling Machine

[Janderso]

I can't remember what I used for black oxide, potassium something or other. A user called markx on another forum detailed the proceedure. Works very well and is super durable, more so in my opinion than oxpho-blue.

Potassium something? That’s a start I guess.
So, don’t use the Brownell’s stuff?
I’ll see what I can find.

 

[Papa Charlie]

I have used the Brownell's solution. Worked well for me.

Your clamps are looking great.

 

[aliva]

I use cold blue oxide from Caswell plating

Black Oxide Concentrate - Caswell Canada

Black Oxide Concentrate

www.caswellcanada.ca

 

[Janderso]

I went too slow but got them cut.
7/32 Carbide 3 flute Kyocera.

 

[tjb]

I went too slow but got them cut.
7/32 Carbide 3 flute Kyocera.

Very nice.

 

[Ulma Doctor]

Sweeeet!!!!

 

[mattthemuppet2]

Potassium something? That’s a start I guess.
So, don’t use the Brownell’s stuff?
I’ll see what I can find.

see, this is why I shouldn't rely on my memory It's ammonium nitrate (it's got an "ium" in it I guess?) that you need.

Here's the link

Black oxide experiment - The Home Shop Machinist & Machinist's Workshop Magazine's BBS

I found it gave a deeper black that was much more wear resistant than the oxpho-blue (I think from Brownells) that I used for some other stuff.

 

[Janderso]

Gave the Oxpho-Blue a try.
I’m impressed with how easy it was.

 

[mattthemuppet2]

did you give it a good scrubbing with wire wool between dips? Looks good and black!

 

[f350ca]

Very nice.
I use the Caswell plating kit, it comes with a coating you dip the parts in after blueing. Smells like a varnish, but feels more like an oil. Really brings out the colour and further protects against rust

Greg