Hi Bob, 3M VHB 4945 is the good stuff. You will need to properly prepare both surfaces for best adhesion. Do not assume that just wiping the surface with a rag will suffice. Particularly painted &/or oxidized surfaces. Use a cleaning agent and clean rags or cloths. Works best with moderate temperatures and low humidity. The "worst" thing you can have happen is to have your placard fall off because the tape didn't stick permanently to the opposing surface. Now you have a placard ($$$) with some really stubborn gooey stuff ($$$) stuck to the back that you have to clean off and start over. So much better to do it right the first time. MUCH better pricing is available IF you can take a few rolls. www.pack-n-tape.com <http://www.pack-n-tape.com/> is one source. 3/4" x 36 yd; Min 12 rolls; $62.04/roll 1" x 36 yd; Min 9 rolls; $77.56/roll 2" x 36 yd; Min 6 rolls; $155.10/roll You might also be able to get a good deal from one of the formerly whoop-de-do-big-shot integrators that are on their way out of business right now. From what I hear, everything must go and any offer will be considered.... If you hear of any of these, give 'em a call. I'm not gonna mention any names to anybody, so please don't ask. Some folks might get their panties in a bunch over this, but I prefer mechanical attachment for outdoor applications on vertical surfaces. Tap & screw or rivet. Spot the back (inside) with a good liquid sealant and call it a day. I know... "might violate enclosure NEMA whatever rating"... Is the intent to put a permanent placard on or not? I have seen way too many missing placards over the years. Always with the same signature... Some discolored adhesive. There's a reason that mature electrical equipment manufacturers (Square D, GE, Cutler-Hammer, Etc) use mechanical fasteners to attach their signage! -Matt Lafferty _____
From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Bob Clark Sent: Monday, November 16, 2009 7:42 PM To: re-wrenches@lists.re-wrenches.org Subject: [RE-wrenches] Tape for attaching NEC Labels RE-Wrenches: Our little PV install business has located a local label maker (metallic label with contrasting text). We are searching for an adhesive tape to secure these labels that is rated for out-door locations and high temperatures. Thus far we have found 3M VHBTM 4945 that meets UL standard 746C for electrical use-two, 100-ft. x 1" rolls for $219.70 (THIS WILL LAST A LONG TIME!). Anybody have another equally effective, code satisfying, but less costly tape alternative? Bob Clark SolarWind Energy Systems, LLC P.O. Box 1234 Okanogan, WA 98840 (509) 826-1259
_______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org