Yes another Bluing Question

[usabaker]

I used a mixture, mostly motor oil and some other oil. I still have some sulphur oil which can work well too

When I am hardening steel used motor oil is what I use.

---------- Post added at 05:18 PM ---------- Previous post was at 05:17 PM ----------

I'm guessing that no one has tried Brownells Classic Rust Blue since I haven't got an answer to the original question.

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[RCS]

I wanted to check my work area, here is what I have used as a cold blue touch up: Brownells Oxpho_Blue creme formula and
recommend it.

[usabaker]

I wanted to check my work area, here is what I have used as a cold blue touch up: Brownells Oxpho_Blue creme formula and
recommend it.

I was looking at rust blues, but for really small things, minor scratches, Mosin spike bayonets, swivels, and the like, I prefer Van's Instant Blue. Because of how it goes on I'm able to match the exiting blue without issue, I can even bleed it so it blends into troublesome areas. A 4oz bottle lasts me years... wish there were smaller bottles.