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[TowerTalk] De-soldering old, & Sold'g New, Flex-Weave,etc. Tips by DAVI

To: "Tower Talk" <>
Subject: [TowerTalk] De-soldering old, & Sold'g New, Flex-Weave,etc. Tips by DAVIS RF Co.
From: "Steve Davis -Davis RF Co." <>
Date: Thu, 7 Feb 2008 13:18:06 -0500
List-post: <>
The following not only addresses cleaning of aged, bare, Flex-Weave Tm (168 
strand # 14 AWG and 259 strand # 12 AWG), but also provides an easy to do tip 
to protect solder joints that you make when using new Flex-Weave Tm (or other 
less stranded or solid wires) for aerial building.  Again, this refers to bare 
wire situations, but when soldering jacketed aerial wire you would use this tip 
also on your solder joints.  We will soon be including the information herein 
on our web site and with every Flex-Weave Tm order.


Plumbing supply stores and some retailers like Home Depot carry "Plumbers 
Acid".  Or, obtain Hydrochloric Acid (HCl) but be sure you have gloves that are 
rated for HCl and also wear safety glasses.   As the labels tell you:  fumes 
can be toxic to the lungs, so you must be in a well ventilated area.   There 
are also water diluted HCl's out there but I have not tried them (industrial 
HCl itself contains about 65% water as is without further dilution).  Others 
have mentioned using "Copper Glo Liquid", but I have not tried it.


Soak the end of the wire that you are cleaning in the acid for about 10 minutes 
and then use a small wire brush to brush the area you want clean.  Go in one 
direction:  toward the end of the wire, with the brush.  The oxidation on the 
fine wires will come off.  Dip it back in the acid a few times after brushing 
it, swish in hot water then wipe it by pulling it through a rag.  Allow to dry 
for about an hour, or set it in the flow of a muffin fan, or use a hair dryer.  
Then final form it with your fingers and tin it with your iron or gun.

That will do it.   NOTE:  Whenever soldering new, old or cleaned Flex-Weave Tm, 
once soldered put some silicone grease over the whole solder joint  and an inch 
or so on the wire to either side of the joint.  Then put any waterproof (not 
"moisture proof") UV resistant tape (such as Scott or AMP Fusion Tape or Coax 
Seal Tm) over the solder joint (do not use PVC electrical tape, it will not 
hold up over time).    This will allow you to deal with the solder joint in the 
future, if ever need be, without oxidation build up.


Bottom line, if you are in an area of high acid rain levels, or salt air 
environment, it is best to use a jacketed version of Flex-Weave Tm (either PVC 
or PE is available), in order to have a very long lasting antenna.  Also, at 
less cost is the option of tinned Flex-Weave Tm, for the same environments but 
tinned wire is not as strong a barrier to oxidation. 

 We also carry all the other favorite aerial wires such as lesser stranded soft 
and hard drawn copper, bare or insulated, and copper clad steel.  Also 
available is stranded / insulated copper clad steel.  Please see our web site 

I hope that this is of some help.

Tnx, 73,  Steve Davis   K1PEK   DAVIS RF Co.



Where Customer Satisfaction is our Premier Goal

~ Davis RF Co., Div. of Orion Wire Co.,Inc.
Distribution to numerous industries,  Andrew 
Heliax; Times Microwave LMR; RFS Celwave and others.
Cable design engineering. RF Peripherals.
Tel: 1-800-328-4773 (1-800-DAVIS RF) Tech'l: 1-978-369-
1738, Fax: 1-978-369-3484 

~ DAVIS/ORION Marine Wire and Cable Co., Distribution and Design: UL/USCG 
Marine Stds.  Tel: 877-242-2253  Fax: 603-787-2221 (Direct tel to Steve Davis: 
978-369-1738 or Fax: 978-369-3484)

~Orion Wire Co., Inc., Design Engineers of Specialty/Custom Cable
Tel: 1-800-328-4773, 1-603-787-2200 Fax 1-603-787-2221,


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