[TowerTalk] Refurbishing tower sections

[RICHARD BOYD]

The acid bath should REMOVE any existing rusting, thus will stop it by totally taking the existing rusting off.

It will not stop future rusting.  In fact, once all the galvanizing has been removed and you have bare steel the rust process will pick up in earnest and within weeks the whole tower will be brown.  That is why you want to, shortly after the acid (or other, e.g. sandblasting) process that takes it down to bare metal, apply the rust preventative treatment, be it galvanizing, "Rustoleum" type paint products, etc.

73 - Rich, KE3Q
  ----- Original Message ----- 
  From: Jim Miller<mailto:JimMiller at STL-OnLine.Net> 
  To: TOWERTALK Reflector<mailto:TOWERTALK at contesting.com> 
  Sent: Monday, May 01, 2006 11:57 AM
  Subject: Re: [TowerTalk] Refurbishing tower sections


  Wow, your picture is enough to convince me (anyone?) that had any
  reservations to make sure the tower was placed where it couldn't fall on
  anything you cared about.

  Question, does the "acid bath" used prior to re-galvanizing STOP any
  existing rusting?

  73, Jim

  ----- Original Message ----- 
  From: "Terry Gerdes" <terry at ab5k.net<mailto:terry at ab5k.net>>
  To: "Red" <RedHaines at centurytel.net<mailto:RedHaines at centurytel.net>>; "TowerTalk" <towertalk at contesting.com<mailto:towertalk at contesting.com>>
  Sent: Saturday, April 29, 2006 10:36 AM
  Subject: Re: [TowerTalk] Refurbishing tower sections


  I was given a 150 foot R25 tower last year that had some serious rust damage
  to one leg at 60 feet.  We  dropped the second set of guys and pulled it
  over with the truck.  It was definitely rusting from the inside out.  It may
  have been a bad galvanized section from the factory.  Pic at:
  http://www.ab5k.net/images/LoranTowerLeg.jpg<http://www.ab5k.net/images/LoranTowerLeg.jpg>


  73 Terry - AB5K


  ----- Original Message ----- 
  From: "Red" <RedHaines at centurytel.net<mailto:RedHaines at centurytel.net>>
  To: "TowerTalk" <towertalk at contesting.com<mailto:towertalk at contesting.com>>
  Sent: Saturday, April 29, 2006 10:06 AM
  Subject: [TowerTalk] Refurbishing tower sections


  Perhaps it is wise, when refurbishing a galvanized tower section that
  shows some rust, to inspect the inside of any tubular member for rust or
  other deterioration.  Rust is a symptom of deteriorating galvanized
  coating, which may, in some cases, occur inside a tube at a rate greater
  than on the outside.  If the galvanized coating fails on the inside,
  painting the outside only may not make that tower section safe to use.

  73 de WOØW
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