[RE-wrenches] Plastic washers

[Jay]

The rack company general specialties recommends a SS washer between aluminum to aluminum, as in rack rails m



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> On Jan 27, 2016, at 10:10 AM, William Miller <william at millersolar.com> wrote:
> 
> Jay:
> 
> Conrad has a very pertinent point to make below. We are discovering that neither aluminum racking nor module frames hold up well in a marine environment. If you navigate to Miller Solar/case studies you will see photos and commentary about a particularly serious case of aluminum degradation. 
> 
> We pulled all of the equipment off the roof and we are waiting for advice from the rack and module manufacturers.  Various ideas brainstormed do include plastic spacers to minimize al to al or al to ss contact. 
> 
> William Miller
> 
>> On Jan 27, 2016, at 6:36 AM, Conrad Geyser <conradg at cape.com> wrote:
>> 
>> Jay,
>> 
>> I would suggest that he has a point, that the dissimilar metals do have a reaction.  But that the reaction is self limiting and that stainless fasteners with aluminum are used in marine applications albeit only with anodized aluminum.  Or say fine and invoice accordingly for the plastic washers.
>> 
>> Conrad
>> Cotuit Solar
>> 
>> 
>> 
>> 
>> Conrad Geyser, Principal
>> Cotuit Solar LLC
>> 508-428-8442
>> 
>>> On Wed, Jan 27, 2016 at 8:02 AM, Jason Szumlanski <jason at floridasolardesigngroup.com> wrote:
>>> Another engineer, eh?
>>> 
>>> I'd say no... Tell him to find another installer. 50 million Elvis fans, I mean PV installations, can't be wrong.
>>> 
>>> Ask him if he brings his own scissors to the hairdresser? That's my favorite line.
>>> 
>>> 
>>> Jason Szumlanski
>>> 
>>> 
>>>> On Wed, Jan 27, 2016 at 12:37 AM, Jay <jay.peltz at gmail.com> wrote:
>>>> Hi all
>>>> 
>>>> I've got a client who insists on "plastic " ( synthetic) washers between SS washers and the aluminum racking and modules.
>>>> 
>>>> I'm tried every angle to assure him it's not a problem to no effect.
>>>> 
>>>> So anybody have any recommendations about type, material, and where to buy?
>>>> 
>>>> Thanks
>>>> 
>>>> Jay
>>>> Peltz power.
>>>> 
>>>> 
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