[RE-wrenches] Label Durability

[Dave Angelini Offgrid Solar]

Sharpie in the JB is fine. Outside, not so fine...


Dave Angelini Offgrid Solar
"we go where powerlines don't"
http://members.sti.net/offgridsolar/
e-mail offgridsolar at sti.net
text 209 813 0060

On Sun, 28 Jun 2020 10:11:52 -0500, Jesse Dahl <dahlsolar at gmail.com>
wrote:
> I bring up the sharpie because as an electrician that’s what we did,
> sharpie on boxes. Now that I work on solar and try to explain to folks
that
> are older than me about durability and solar and.... they tend to just
blow
> me off and sharpie away. It would be great to show them with this photo
> “here is your sharpie” 
> 
> Jesse 
> 
> Sent from my iPhone
> 
>> On Jun 27, 2020, at 9:46 PM, Jay <jay.peltz at gmail.com> wrote:
>> 
>> Hi Corey
>> 
>> Well done. 
>> 
>> Question
>> 
>> What is the orientation of this test?
>> 
>> Jay
>> 
>> Peltz Power. 
>> 
>>> On Jun 27, 2020, at 10:59 AM, Corey Shalanski <coresolar at gmail.com>
>>> wrote:
>>> 
>>> 
>>> About ten years ago we set up a test wall of sorts at our company
>>> headquarters in New Orleans. The purpose was to monitor the
>>> durability/degradation of various materials - including warning
labels.
>>> We tried to attach a variety of label types: plastic trophy plaques,
>>> vinyl stickers, labelmaker tape. We also used various adhesives:
sticker
>>> OEM adhesive, double-sided tape, "Gorilla Glue", PVC cement. It should
>>> be noted that the wall faced southeast and was uncovered, so that it
>>> received daily full sun and was exposed to all other environmental
>>> conditions (rain, etc).
>>> 
>>> The results today do not look good (attached photo). None of these
>>> products would appear to meet the "sufficient durability" requirements
>>> of NEC 110.21(B).
>>> 
>>> I am curious if anyone is aware of any similar (but more formalized)
>>> product testing? and can share results?
>>> 
>>> Has anyone found a warning label product that performs particularly
>>> well over time?
>>> 
>>> --
>>> Corey Shalanski
>>> <Durability Test Wall.jpg>
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