[R-390] Note on Krylon Appliance Paint

[Barry Hauser]

Hi Dave & crew:

There was a thread on paint way back in which someone (Dr. Jerry, I think),
pointed out that regular Rustoleum takes months to cure fully, even after
baking.  I believe it.  That's why I like to use a extra panel for
refinishing and then swap it on months later.  It's also a good idea to wait
until then before re-filling the stampings.

Regular Krylon dries and cures much faster than Rustoleum, but it's not as
durable.  I don't know just how different their epoxy paint is, but it may
be a very slow curing paint like Rustoleum, and so has some tendency to
continue to re-gel or settle, restoring the gloss.  One rule of thumb
someone had pointed out -- if it still has an odor, it's still curing.  If
it's still curing, it's not at maximum hardness.

It may be possible to decrease the curing time by baking longer or at a
higher temperature.  However, even after baking, the Rustoleum-ed panels
I've done still have an aroma weeks and months lately, so I put them up to
age, like wine. ;-)

(You would need to remove the bezels and paint them separately.  Baking
whole meters is not a good idea.)

Hope this sheds some light on the subject.  Not so much a "self-healing"
feature, as the stuff probably just takes forever to cure. (or it wasn't
well mixed or you had a bad batch -- or maybe some other reason altogether
;-)  I betcha if you made a mark in it now, it wouldn't self-repair.

Barry

----- Original Message -----
From: "David P. Goncalves" <dpg@coe.neu.edu>
To: <r-390@mailman.qth.net>
Sent: Sunday, November 02, 2003 4:13 PM
Subject: [R-390] Note on Krylon Appliance Paint


> Some months ago, I reported on my experience with Krylon 'epoxy' appliance
> paint sprayed on my rebuilt meters, which indicated that it was not tough
at
> all, and that wrapping them with soft paper and transporting them in a box
had
> rubbed some spots to dullness. After that report, I put the meters on the
> shelf in defeat, promising myself that I'd get back to them toward the end
of
> my (slow) restoration work.
>
> This afternoon, then I look another look at the meters, I found something
very
> interesting: The dulled spots had regained their shine, leaving only a
slight
> roughness! Wow! Who would expect that - self healing paint.
>
> I'm not looking for an explanation, though one woulod be interesting. Just
> telling you what I've noticed.
>
> Dave Goncalves, N1XZB
> N.U. Wirless Club, W1KBN
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