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ckalley
03-06-2004, 12:59 PM
I am in the process of rebuilding a tri-band Yagi antenna for my Ham Radio setup. It was built wit zinc (or Cad?) plated hardware and over the years the plating disappeared and now the stamped aluminum boom-to-element plates are covered with rust stains. Other than using a stainless wire wheel or bead blasting any one have any good ideas on how to clean these parts up?? Tnx on advance
Craig
N1ABY

Joel
03-06-2004, 02:02 PM
Vinegar or CLR and Scotchbrite maybe?

Evan
03-06-2004, 04:50 PM
It depends how much effort you want to put in. If I were rebuilding it I would strip the aluminum parts down in a lye bath and then re-anodize them. Replace the hardware with stainless steel.

Mike W
03-06-2004, 07:53 PM
You can buy aluminum "wheel brightener" at some parts stores. You are supposed to spray it on and then wash it off. I think it is a weak acid. It will also take off rust.

ckalley
03-08-2004, 02:15 PM
Thanks to all. CLR and a "Welder's Toothbrush" cleaned them up almost good as new. Now all I have to do is put it all back together.....
Craig