Parks 50 Quench

Joined
Jul 23, 2006
Messages
1,231
Hi Guys,

I was just wondering, how often do you replace your Parks 50 quench Oil. I have an unheated garage and live in PA, and my shop my temperature fluctuates from quite hot to extremely cold depending on the season. In the winter I use a few kerosene heaters while I'm working in the shop and the temperature get up into the mid 60's -mid 70-s.

Any information would be greatly appreciated.

Thanks,

Bobby
 
It will eventually lose quenching speed as it degrades. Should last years or thousands of pieces. The industrial solution is to measure quenching speed and add a special product to restore quenching speed back to original specs, or replace the oil if needed. Generally speaking, if you're getting the proper hardness out of the quench, then the quenchant is fine.
 
My current quench is just about 4 years old, but no where near thousands of quenches. More like several dozen. I should just order some more from Heatbath.👍

Thanks for the information Sir
 
If I can ask a related question, what is the proper way to dispose of old commercial quench oil like Parks 50?
 
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Mine is 12 years old and still works fine. Worst thing for it is flame ups.

Don, do you think the fact that my detached garage isn't heated will degrade my quench oil faster?
 
My AAA quench oil is 10 years old I think and has quenched tons of blades and still works as good as the day I got it.
 
If I can ask a related question, what is the proper way to dispose of old commercial quench oil like Parks 50?

used motor oil collection center
oil recycling facility
sometimes cities sponsor hazardous waste roundups
call an environmental services company, we get our machine shop oil and coolants hauled away for $175 per 55 gal drum
 
And the good news is that it almost never flames up because you don't have to heat it beyond normal "room" temperature even in cold weather. As such, you don't get that little vapor cloud on the surface like you can with slower oils that require heating to like 130-150. The only timeI see flames is if I pull a clay coated blade out of the quench too early and that is on the clay. If that happens put it back in the quench FAST because you are "auto-tempering" your blade and it may mess up your final hardness.
Mine is 12 years old and still works fine. Worst thing for it is flame ups.
 
Parks 50 is my favort quench oil. I love AAA but man parks is nice
 
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Mine is 12 years old and still works fine. Worst thing for it is flame ups.

Don, do you think the fact that my detached garage isn't heated will degrade my quench oil faster?

Cold temps wont hurt the oil, but you might need to heat it a bit to get it up to 'room temp'.

Keep a lid on it and it'll be fine.
 
And the good news is that it almost never flames up because you don't have to heat it beyond normal "room" temperature even in cold weather. As such, you don't get that little vapor cloud on the surface like you can with slower oils that require heating to like 130-150. The only timeI see flames is if I pull a clay coated blade out of the quench too early and that is on the clay. If that happens put it back in the quench FAST because you are "auto-tempering" your blade and it may mess up your final hardness.
Yes all that. But the big flame displays on that TV show is so cool! ;)
 
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Cold temps wont hurt the oil, but you might need to heat it a bit to get it up to 'room temp'.

I guess ill just strain out the scale then ... thanks
 
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