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Author Topic: Tower Paint  (Read 325 times)
N9CPL
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Posts: 27




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« on: November 12, 2001, 10:37:33 AM »

After inspecting and cleaning my tower what would be the best primer / paint to use before putting it up?
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RobertKoernerExAE7G
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Posts: 1435




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« Reply #1 on: November 12, 2001, 01:52:11 PM »

http://www.championradio.com/cgi-bin/WebStore/web_store.cgi?page=misc.html&category=yes&cart_id=633850_15082
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KL7IPV
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Posts: 984




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« Reply #2 on: November 12, 2001, 06:31:35 PM »

My thought is: DON'T paint it! Paint will hide defects that occur later on like hairline cracks or corrosion from the inside of the tubing. It will keep apparent cracks caused by freezing from being seen and since you are in cold country, I would just clean the tower and if it is corrosion free and free of cracks, use it unpainted.
73
Frank
KL7IPV
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WB2WIK
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Posts: 20545




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« Reply #3 on: November 13, 2001, 10:59:08 AM »

I thought it was a real exception to the rule to paint a tower, also.  Although I've seen them painted with strong marine-grade polyurethane paint when used near the sea, to help preserve the base metal better than galvanizing, in most normal amateur applications I wouldn't paint a tower, either.  If it's so rusty and discolored that it looks really bad, I'd probably use the Yellow Pages to find a shop that does hot dip galvanizing and bring the tower to them for a dip.  This is not expensive, and under normal circumstances a dip galvanizing job lasts at least 20 years; the inconvenience and cost is normally in getting the tower to them, and carrying it away again.

73 de Steve WB2WIK/6
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AD6JN
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Posts: 172




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« Reply #4 on: November 15, 2001, 12:37:34 PM »

Concerning towers I always recommend looking at the safety and legal aspects.  Contact the local building authority to see if a new permit is required.  You may have been "grand-fathered in" when originally installed.  If permitted they will document the installation as removed and repaired.

Inspection.  There are local inspection companies that can recommend a good non-destructive test method.  These will reveal hidden flaws especially in welded joints.  They will issue an inspection certification.

As far a protection.  The original tower manufacturer may recommend a process.  Document this also.

Aluminum - a good protection is anodize.  For under paint chemical film is adequate.  Good outdoor metal paint sprayed on is fine.  The anodizer will recommend a clean operation.

Steel - the galvanize is the best way to go.  The galvanizer will recommend a good clean operation like sand blast.

Be sure to document everything for the safety and legal aspects.  The permitter may require this.

73,
Bob
AD6JN



   

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