Re: [RE-wrenches] Plastic washers

[Allan Sindelar]

Chris, As only the threads of all SS bolts need anti-seize, there's a much neater method. Anti-seize is available in a solid twist-to-extend tube that is neat and easy to use. One light swipe across the make threads of each bolt - doesn't take much to prevent galling. I checked in my toolbag - I'm holding a tube of Loctite Quickstix Silver Grade Anti-Seize, product #37230. Probably got it through Fastenal. Allan Allan Sindelar al...@sindelarsolar.com NABCEP Certified PV Installation Professional NABCEP Certified Technical Sales Professional New Mexico EE98J Journeyman Electrician Founder (Retired), Positive Energy, Inc. 505 780-2738 cell   On 1/28/2016 11:35 AM, Chris Mason wrote: Our house is on the ocean,  in the Caribbean. If you are using something like SnapNRack,  where a stainless bolt goes through an aluminium channel nut, use Permatex or it will seize. Other than that,  I have not seen racking corrosion in eight years on the roof. Put all the clamps, bolts, nuts etc, in a bucket and spray it all with Permatex anti seize. It will be messy but very effective. You'll have fingerprints on the modules but oh, well. On Jan 28, 2016 2:16 PM, "Ray Walters" <r...@solarray.com> wrote: I would use a SS washer with integrated Neoprene rubber gasket.  We use them on roof work, and Unirac uses them under the lag on their roof flashings. https://www.copperstate.com/shop/429/neoprene-washers Thanks, R.Ray Walters CTO, Solarray, Inc Nabcep Certified PV Installer, Licensed Master Electrician Solar Design Engineer 303 505-8760 On 1/28/2016 8:25 AM, Jay wrote: Hi Larry I wasn't planning on installing anything between al and al. Just between SS and al. So the module will still be bolted directly to the al rack material. I'm not too worried about the grounding, and certainly not worried enough to install lay in lugs with copper to each module.  As lones pointed out, there are parts that would insulate the bolt.  But as the owner hasn't requested that, not going to suggest it! I sure didn't plan on stirring the pot like this.  Just really wanted some help on sourcing the washers Thanks Jay Peltz power On Jan 28, 2016, at 6:49 AM, Starlight Solar Power Systems <la...@starlightsolar.com> wrote: Hey Jay, I’m still trying to picture this and had a thought: If you isolate the module from the rack electrically with these washers, and both are grounded, and the two grounds are not at the same potential (different length ground runs), you may be creating a path for high voltage into the array in event of a near lightning strike.  Also, if the washer is between the two metals, how will you isolate the bolt that puts them together from not touching the sides of the holes?  Perhaps you need to look into non-conductive fasteners as well. Larry Crutcher Starlight Solar Power Systems On Jan 27, 2016, at 6:44 PM, Jay <jay.pe...@gmail.com> wrote: Ok here is the long form.  Customers system is in Mexico, Baja. So I'm not concerned about legal issues.  It is a custom racking design to fit his house.  Flat concrete roof,low tilt design with extra heavy duty engineering for hurricanes. Easy access for future MX of all fasteners Owner lives on his own island in the South Pacific.  This is his 2nd ( more?) house.  He wants this. I've told him all of what you all and have said including that there will need to be future mx to check bolt tightness.  I am going to do it for him.  Thanks for all the advice on where to get look for the parts he's looking for. Jay Peltz power.  _______________________________________________ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org _______________________________________________ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org _______________________________________________ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org _______________________________________________ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org

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