I was thinking the other day about how to cold blue some of my air guns, I dont have the money nor space to hot blue unfortunately. I have had mixed opinions about this but still not decided.

I have seen that heating up the metal before hand can help the process, While I do have a 2000w heat gun, I thought to myself "why not just buy a large cheap deep fat fryer"?

I mean all they are is basically a kettle (piece of plastic with a metal element at the bottom of the water/oil) And it would be easier to get the metal to a high temperature than a heat gun. Mainly for small parts/pistols.

Now, call me paranoid but I dont quite like using electrical equipment for other purposes than they were designed for, especially when water is involved. So is this safe to do?

Again, sorry if its a stupid question.

Cheers