Rusting of Satellite Dishes

[odalyst@yahoo.com]

Working on this project concerned with rusting of satellites dishes
I would like any suggestions on any material that can be used in place of the regular ones that rust.
Thank you

 

[Phil Allison]

oda...@yahoo.com wrote:

Working on this project concerned with rusting of satellites dishes
I would like any suggestions on any material that can be used in place
of the regular ones that rust.

** Stainless steel & anodised aluminium are two.

Properly coated ( ie galvanised and powder coated ) steel does not rust.



.... Phil

 

[Cursitor Doom]

On Thu, 04 Jul 2019 21:08:36 -0700, odalyst@yahoo.com wrote:

Working on this project concerned with rusting of satellites dishes I
would like any suggestions on any material that can be used in place of
the regular ones that rust.
Thank you

Galvanised steel, I would suggest.



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[whit3rd]

On Thursday, July 4, 2019 at 9:08:38 PM UTC-7, oda...@yahoo.com wrote:

Working on this project concerned with rusting of satellites dishes
I would like any suggestions on any material that can be used in place of the regular ones that rust.

If you can wire-brush the loose rust, an application of 'cold galvanize' paint (commonly
used for wire fences) will usually work. Keep it all clear of the aperture of the
receiver, though, JUST paint the metal dish.

 

[Jeff Liebermann]

On Thu, 4 Jul 2019 21:08:36 -0700 (PDT), "odalyst@yahoo.com"
<k.ukuaortsin21@gmail.com> wrote:

>Working on this project concerned with rusting of satellites dishes.

Rust never sleeps.

I would like any suggestions on any material that can be used in place of the regular ones that rust.
Thank you

Satellite dishes need to be accurate to about 1/10th wavelength
difference from a perfect parabola in order to work well. That makes
them rather difficult to repair.

I used to help maintain the satellite feed antennas at a local AM/FM
station located in a salt water lake. These rusting steel dishes:
<http://www.learnbydestroying.com/jeffl/antennas/dish-move-project/index.html>
were eventually replaced by these fiberglass equivalents:
<http://www.learnbydestroying.com/jeffl/antennas/dish-new-install-project/index.html>
Unfortunately, we had to later move one of the steel dishes:
<http://www.learnbydestroying.com/jeffl/antennas/dish-move-03/index.html>
The dish should have fallen apart from all the rust, but 2 years
later, is still functional and in one piece.
<http://www.learnbydestroying.com/jeffl/antennas/dish-move-03/slides/DishMove03-004.html>

The main advantages of fiberglass are somewhat easier to assemble, no
rust, no paint required, less reflected heat, and easier to clean.
However, the support structure and hardware are usually steel, and
will need to be protected from corrosion.

If you want details and particulars, my email address in the signature
works.

--
Jeff Liebermann jeffl@cruzio.com
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558