Confirm marks on mill table after vise removal - 3 weeks and treated table

[rwm]

Very interesting video. I have never seen the residue he shows with the CRC and the Boeshield. (I have both) His testing was outside. I wonder if the sunlight exposure caused the product to discolor? I have never seen this in the shop. Nevertheless, I am going to try Stabil as he recommends. Seems like the Minwax finish would be good for machine tables also.
Robert

 

[RJSakowski]

Hey Folks, I took my new vise off a new pristine table after approx being mounted approx 3 weeks. I am seeing lines of darkening. Not sure these are rust as it does not make sense to me based on time, treated surface, and not being particular humid (mid upper 50's RH) and that they are not a color I would expect, just dark. Looking to confirm if these is rust, staining from product, or by product of some other form of oxidation.

Prior to setting it in place, I put a healthy layer of Fluid Film (lanolin based) on the underside of the vise as well as the table. I took the vise off as I need to lift the mill to set its trip tray, and had left it off for a bit over a week, went back today to put it back on and after wiping the table was surprised to see dark marks corresponding to the relieved parts of under the vise and its outline.

The lines correspond to where the heavy deposits of Fluid Film were. The underside of the vise also had the same markings, again where the heavy lines of film where. I dont know if they were there at removal (since I did not wipe them down as I probably should) versus after sitting off for a week. My though is this product is the type that suspends moisture and that possibly too heavy a layer is a bad thing?

The lines do not remove with solvent. Non reactive to rust product like naval jelly. Come off with scotch brite pad.

Thoughts?

View attachment 382831

View attachment 382832

What's up with the bottom of your vise? It looks like there is some sort of plastic sheet on it. If so, it may be giving off vapors that caused the staining. Some water based coolant mixtures will cause staining but the stain is usually under the contact points between the two surfaces. In your case, the staining is at the edges or in the area exposed to air under the vise.

 

[erixgix]

I think Boeshield is peroleum based while Boelube is not and is biodegradable. I prefer the more toxic and dangerous version.
It's also flammable which is nice.
Robert

YES! I like how you think.

The learning never stops. I watched quite a few reviews of the various inhibitors and kept seeing reference to machinists like of lanolin for certain things. Only after taking this off and doing some research did I see that this is a common thing among items that contains sulfur compounds. Lesson learned. Probably is....all the wonder products seem to contain them.

my table was slathered with fluid film and has looked new since that day, so it is curious that it being sandwiched made only that area do it. One would think it would stain everywhere. But it seems a function of areas of excess buildup where it was squeezed out. too much of a good thing? First I though galvonic reaction, but both are similar metals and not everywhere, so it must be from something in the wonder goo's.

Sta-Bil from that video looked interesting, showed no staining on the iron 'coupon', but then again, it wasnt sandwhiched.

That was great about having an inexpensive mill prior to my new one, I didnt care. Making that CC payment is still too fresh to have the love marks darn it.

Appreciate the imput. Looking for non staining I ran across a synthetic grease that promises to improve your life and make your lost dog return home. And is edible. But like Robert, I have a hard time trusting anything that children can ingest without problems. No danger...no worky?

https://www.mercerinnovation.com/product/kleergel-heavy-duty-synthetic-grease/

 

[erixgix]

What's up with the bottom of your vise?

Sorry, missed this. That is the fluid film buildup that squeezed out into the flat areas when I put the vise down, and after removing it I was wiping it off areas, but had not cleaned it off. Yes, the dark was at the perimeter of the slots and cavities at the the bottom of the vise. Interestingly that is where the fluid film would have been the heaviest. So I am of the mind its some chemical reaction from the heavy deposits and possibly something that may have been on the vise though I thought I cleaned it up with WD40 before install.

Mill is kept downstairs in stable temps and the rest of the table was covered with lighter fluid film and is perfect so I know its not an environmental issue.

I'm using the vise bottom to test spot various things to see. Phosphoric acid does not do much to those areas, nor oven cleaner. Evapo Rust seem to lighten it about 25% and subsequently removes easier with light scotch brite. From that it seems to be consistent wtih a chemical oxidizing process forming something other than rust. Though I am not clear why the phosphoric based items wouldnt effect that.

I appreciate this is ''normal" to a degree over time....but having only been 3 weeks is the part I was taken by and had me ask. I know I am not going to use fluid film as the oil boundary. I may try the WD40 specialist next.

 

[aliva]

I've got the same stains, just live with it. No one will see it when the vise is on anyways, except 30,000 member here

 

[pineyfolks]

I don't know if it's good or bad but I've had good luck with olive oil cooking spray as a rust inhibitor. I tried it on my horizontal mill table one winter when I was out of everything else and it worked great.

 

[Winegrower]

I always advise people who want their mill to look like new to simply never use it. It's way too risky.