mixing oils

[alfonso]

I wonder if I can mix olive, peanut oil and old car engin oil or even duck fat for heat treatment...
Different densities?
Any harm in this?
Thanx

[PS_Bond]

Have a look at some of the weird & wonderful recipes for "goop" as a quenchant. I'd probably be inclined to avoid old engine oil because of some of the contaminants in it, personally.

[Trond]

Hello Alfonso, sorry i dont know the answer for your question, i have another for you, why do you want to do this?

Welcome to us btw :)

[alfonso]

I just have some bottles of used oil from different sources (mineral, vegetal), and a can of duck fat.

[one_rod]

I'd probably be inclined to avoid old engine oil because of some of the contaminants in it, personally.

For quenching "engineering" type tools at work I have never used anything EXEPT old engine/gearbox/hydraulic oil (whatever I can find, mixed in random proportions).

Keep it off your skin and try not to breath the smoke, you will be fine.


one_rod.

[Kevin]

Is a thick density/consistancy of quench oil better than a thin density/consistancy?.....will one disipate heat from a quenched blade better than the other?.....What are we idealy looking for in quench mediums?.....does it depend on the steel we use?...what makes a good quench medium?......hmmmm

[alfonso]

Thanx everybody!
I'll have a try...