We use black boxes for batteries as the increase in performance in the
winter overrides the damage to the batteries in the summer
On 08/15/2019 04:31 PM, Ken Hohhof wrote:
The difference between standard machine grey and just bright white spray
paint from the hardware store is dramatic. I suspect everything beyond
that is incremental.
Also back around 2005 when I ordered my first outdoor cabinet from DDB,
I thought I wanted unpainted metal aluminum since all the traffic
control boxes I see are plain metal or stainless steel. The salesperson
said I absolutely didn’t want plain metal because it would get hot in
the sun and what I wanted was the cream color.
*From:*AF <af-boun...@af.afmug.com> *On Behalf Of *Bill Prince
*Sent:* Thursday, August 15, 2019 6:19 PM
*To:* af@af.afmug.com
*Subject:* Re: [AFMUG] Solar load
If you look up insulating paint on Wikipedia, the entry there says all
ceramic heat-reflective coatings are snake oil.
I did find a good discussion on Scientific American
(https://www.scientificamerican.com/article/benefits-of-insulating-paint/).
They don't exactly describe it as snake oil, but they also suggest that
you not get your hopes up.
I suspect you can get your best results with a coat of reflective white
paint, and try to keep it clean.
bp
<part15sbs{at}gmail{dot}com>
On 8/15/2019 1:12 PM, ch...@wbmfg.com <mailto:ch...@wbmfg.com> wrote:
Be interesting to do a bake off between this and the plain
“satellite white” I use.
I have always found it interesting that highly reflective things
like polished aluminum, chrome and silver paint seem to be really
bad at reflecting heat/sun. But we have all grabbed a chrome wrench
that has been left in the hot summer sun and realized hot much it
absorbs. I am guessing what we see as reflective, Infra Red sees as
flat black.
*From:*Bill Prince
*Sent:*Thursday, August 15, 2019 1:46 PM
*To:*af@af.afmug.com <mailto:af@af.afmug.com>
*Subject:*Re: [AFMUG] Solar load
Which reminds me of this material that a friend clued me in on.
You can get this at Home Depot (for example). It is pricey; around
$250 per 5 gallon bucket, AND it needs a top coat of another
material at near the same price. However, for an advertised
reduction in temperature of over 60 degrees F, it may be worth a look.
https://superiorcoatingsolutions.com/super-therm/
bp
<part15sbs{at}gmail{dot}com>
On 8/15/2019 12:35 PM, Lewis Bergman wrote:
I remember Chuck doing a study on this same subject so I thought
there might be some interest.
Cabinet heat load
<https://www.ddbunlimited.org/wp-content/uploads/2019/08/Solar-Load-on-DDB-Enclosures.pdf>
--
Lewis Bergman
325-439-0533 Cell
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