[RE-wrenches] Label Durability

[Jesse Dahl]

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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