Re: Tool maintenance

Schuyler Larrabee

Jim, Excellent question! And you’ve hit on the fact that these tools have been around on my desk for years without this issue, at least, not to this degree. And yes, I had left the top off a bottle of Testor’s liquid cement for styrene. As you are, I am not sure if that is a categorical acidic vapor or not.

One thing that was odd: The square’s blade was corroded on the underside (when it sits on the tabletop the blade is so short as to be parallel to the table) but not the top side. I’m wondering if the vapors might sink and be closer to the table than up (a little) higher.

That doesn’t quite extend to the nippers, though, as they were a little farther away.

I think the “hurricane leftovers” are a big part of this. Cool damp weather . . .

I was annoyed with myself enough for leaving that top off without this as a side effect!


From: STMFC@... [mailto:STMFC@...]
Sent: Monday, October 09, 2017 2:43 PM
To: STMFC@...
Subject: [STMFC] Re: Tool maintenance


You've gotten some good recommendations for prevention - various
light oils all work well. Put a small amount of some in a soft cloth
(I use cotton) and wipe it across the surface of the tool - if you can
see any look of "wetness" it was enough ... you do not need enough
that the tool feels oily and transfers oil to your fingers when you
handle it (wipe off the excess!).


But ... I didn't see any one ask this question ...

If I understand correctly you had some tools that - in just a couple of
weeks got rusty. And that these are tools that you've been using for a
long time and regularly and that they don't get rusty.

===> You should be asking your self "what was different for that
two weeks?".

Two weeks is not a lot of time and normal moisture should not
normally attack a tool in that amount of time. Is it possible that
you had some sort of corrosive in the air (and near your workbench)
- such as an open bottle of paint thinner, or any other 'acid' (not an
actual acid as much as anything that might have accelerated the
rust rate). Some of the products that are in that category would
be ACC, vinegar, any paint thinner, etc. Products that I would not
expect to cause a tool to corrode would be acrylic paints (nor
most thinner based paints but just due to the amount of thinner
in them), white glue (or KK), etc. One product that I don't know
which category it would fall into would be styrene glues such as
Tenax, etc. Although 'just' water in a container would create
a certain amount of humidity ... I wouldn't expect that to cause
a problem (and I often have a plastic cup of water on my bench
that dries out due to time and temperature. Similarly - I would
not be quick to point the finger at ACC ... simply because it is
so highly volatile that I can't imagine it affecting any tools on
the bench even if it was right next to the tools.

Was there something that when you got back to your bench
that had dried out?
- Jim B.

[Non-text portions of this message have been removed]

Join to automatically receive all group messages.