machinists: recommend solvent for baked on cutting fluid on glass?

[Whiterabbit]

Hi guys,

Need some advice. we have some machine parts that are subjected to very high temperatures. If they aren't cleaned well enough by the vendor, the cutting fluid vaporizes and re-deposits on some glass nearby in he heat treat chamber. This stuff does not respond to IPA or Acetone.

I dont know the fluid, but it surely must be common fluid for cutting either aluminum or ceramics, as that is what we typically have in the furnace.

Any suggestions on an alternative solvent to try? I don't need to dissolve it, just loosen adhesion and remove it from quartz glass or sapphire.

[HATCH]

is it flat glass?
Should be able to use a razor blade to remove it

[Whiterabbit]

that's what we are doing now. Doesnt help on the rounded edges though. Definitely fixes the face.

[OLPDon]

Easy Off Oven Cleaner
Don

[HATCH]

ok.. this is worth a shot
Cooktop cleaner
Its for the flat glass cook tops
something like this -> Cooktop cleaner

[OLPDon]

Like this http://www.amazon.com/EASY-OFF-Oven-.../dp/B00009V3TN
Don
PS Some local stores have it or a knock off works also. And if you have a circular saw blade with burnt on wood stuff spray in on there too. And nice and clean....

[zuke]

is the oil milky/white?
If it is, it sound's like water soluable oil. Just wash it off with hot water.

[GabbyM]

Oven cleaner sounds like a good hunch.

The old Trim Sol brand cutting fluid (coolant) we used to have was a water soluble mineral oil. This new stuff is much nicer to use and smell but I've not been to school on it. Probably still a mineral oil of food grade. So your baked on film would be much like cooking oil hardened on a stove top or oven.

Parts that have been surface ground would have a different coolant used.

To complicate things they now have water soluble hydraulic fluid. I've run big milling machines that were leaking five gallons of hydraulic oil per eight hour shift. No rust on your parts anyways. We didn't add coolant / oil water mix. Just straight tap water to cut the oil. About one hundred gallons of water a day.

Another oil. Some parts that absolutely can't rust are sprayed with a rust inhibitor. Some amazing stuff. I'd guess if any of that baked onto your glass you'd not cut it with any solvent. Parts sprayed with that stuff can be rinsed with water with no penetration or removal of the inhibitor. I've run parts for almost three hours in a mill under flood coolant and they come out still oiled.

[boltaction308]

try goo gone, I have used it for lots of things.

http://googone.com/,

[Jeffrey]

WD-40 has some amazing solvent / cleaning abilities.

[W.R.Buchanan]

Oven Cleaner is a last resort,,,, after you try 409 and a scotchbite pad.

I use Oil Eator from Costco more than anything.

Make sure to spray WD40 on any painted surface you strip with any alkylide cleaner or it will eventually crack and chip.

Don't use Actone! It will clean the stuff you have but it will also ruin the paint.

I use Easy Off to clean engines with built up grease that is baked on.

It's just too bad you can't get the older Easy off. The new stuff is pretty tame compared to the older stuff, but it still works pretty well..

Randy