Fiona 0 Posted January 13, 2012 The raw aluminium threads on the Spectra Back Boxes look like they'd easily corrode when threaded into the mounts - IWY; pole mounts etc. Question: What product or method is used to prevent those threads from corroding when installed in wet, damp or humid locations? What does Pelco recommend? Share this post Link to post Share on other sites
Soundy 1 Posted January 13, 2012 I don't think I've ever put anything on these threads other than Teflon thread tape, or a brush-on thread sealer... never had a corrosion issue. Only problem I've ever had is when the locking set-screw rusts so you can't loosen it to remove the back-box. Share this post Link to post Share on other sites
hardwired 0 Posted January 13, 2012 They usually (used to, anyway) package a small tube of thread sealer to put there... Although a few years ago, for a short time, they packaged some Loctite sealer that practically welded the threads together. We had a Spectra on a PP351 arm with that sealer that we couldn't get loose for service, so we took the whole assembly in to them (we're just a few miles from their headquarters). They had three guys, pipe wrenches, and eventually a torch, and they never did get it loose (it was quite a show, though!). They ended up giving us a new backbox and arm for free. Share this post Link to post Share on other sites
Fiona 0 Posted January 13, 2012 Thanks Soundy, if corrosion isn't an issue at your lattitude then I guess it shouldn't be a problem. Thread tape crossed my mind, along with transparent grease. Hardwired, that's a terrific annecdote about Pelco recommending and providing Loctite and then having to eat their words with a free arm and BB replacement. Share this post Link to post Share on other sites
