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Old 11-13-2009, 08:12 AM
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Cavalry Cavalry is offline
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Default Coolant that does not rust?

I am using a mister on my mill, and with Koolmist 77 am getting a lot of rust on the table and vice.

I found a jug of Tricool TC1 I had forgotten about and mixed that up this morning. It claims to prevent rust.

Any suggestions?
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  #2  
Old 11-13-2009, 09:49 AM
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A lot of time with coolant/rust it is due to the mixture not being correct. Over time as the water/coolant seperates and evaporates, you may need to add more coolant, or more water to hit the optimum mixture. Using a mister may also lead to the coolant/water seperating causing issues too. Really the only way to know that it is a good mix is to use a refractometer to check the mix, and adjust according to recommended specs.
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Old 11-13-2009, 09:55 AM
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Quote:
Originally Posted by Cavalry View Post
I am using a mister on my mill, and with Koolmist 77 am getting a lot of rust on the table and vice.

I found a jug of Tricool TC1 I had forgotten about and mixed that up this morning. It claims to prevent rust.

Any suggestions?
Quote:
Originally Posted by greywynd View Post
A lot of time with coolant/rust it is due to the mixture not being correct. Over time as the water/coolant seperates and evaporates, you may need to add more coolant, or more water to hit the optimum mixture. Using a mister may also lead to the coolant/water seperating causing issues too. Really the only way to know that it is a good mix is to use a refractometer to check the mix, and adjust according to recommended specs.
Ya know I would like to help you but the last time I offered help
I was told I don't know shit about coolants...
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Old 11-13-2009, 10:16 AM
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Well.....there's always Hydrocarbons...

Oil for the rest of us.

But yes I can see your application would not do well
using oil. As your using a mister, I assume it's a total
loss system, so concentration is maintained, as you
mix up a new batch ?

Is the rust happening immediately ? or after the mill sit's
unused for awhile ? I understand that the "sit's for awhile"
rust "under the vice" is normal, and to be expected with
any water based coolant.

But flash rusting (especially on the part being machined)
is not.

This comes up once in awhile over at Practicalmachinist.com
might want to search there.

Shade:
Come up with "designer fragerances" for coolants,
and then they'll listen.
How about a list: (feel free to add your own)
1. Beer
2. Tobacco
3. Pot smoke
4. Oranges
5. Peanut butter
6. Chocolate
7. Mountain Dew
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Old 11-13-2009, 10:34 AM
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Walker Walker is offline
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Quote:
Originally Posted by Shade Tree Welder View Post
Ya know I would like to help you but the last time I offered help
I was told I don't know shit about coolants...
It's okay Shade, we understand and have tolerance for our less informed bretheren on the board
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  #6  
Old 11-13-2009, 10:35 AM
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I used to put a coat of oil under the vise to prevent that rust from occuring, but after a while it would stink when you took the vise back off!!
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Old 11-13-2009, 11:09 AM
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Quote:
I am using a mister on my mill, and with Koolmist 77 am getting a lot of rust on the table and vice
Your table may be rusting but your lungs aren't.

Quote:
Ya know I would like to help you but the last time I offered help
I was told I don't know shit about coolants...
Shade, I must have missed that one.
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Old 11-13-2009, 11:59 AM
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I was always concerned about the mist in the air. I had pneumonia about every year when I was breathing rolling oil everyday .We did do a decent job of controlling bacteria and molds in our synthetic and natural lubes ( weekly test ).
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Old 11-13-2009, 12:22 PM
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Cavalry Cavalry is offline
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Quote:
Originally Posted by digger doug View Post
But yes I can see your application would not do well
using oil. As your using a mister, I assume it's a total
loss system, so concentration is maintained, as you
mix up a new batch ?

Is the rust happening immediately ? or after the mill sit's
unused for awhile ? I understand that the "sit's for awhile"
rust "under the vice" is normal, and to be expected with
any water based coolant.
yes total loss, concentration is maintained. I am getting rust as soon as it dries. 5 hours or so, just little spots.
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  #10  
Old 11-13-2009, 05:45 PM
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Distilled water will eliminate 90% of the rusting, according to the makers of Koolmist.
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