[TowerTalk] Plastic Cutting Boards for Antenna Stuff ?
k6uj at pacbell.net
Sat Apr 21 21:19:44 PDT 2012
Yes, they have that same slippery feel like teflon. As you said with a thick panel it probably will hold up OK in the sun. For wire antenna usage I would probably be changing
the wire or feedline anyway long before the poly shows signs of failing. Its salvation is the thickness then. It should be a breeze to cut up with my table saw.
On Apr 21, 2012, at 9:06 PM, Grant Saviers wrote:
> Usually some form of high density polyethylene (HDPE) or a variety called UHMW - ultra high molecular weight which is quite slippery and used as an inexpensive substitute for TFE in sliding bearings, e.g. conveyer strips, low speed sleeve bearings, and part handling machines. UHMW is not fun to machine because it is so slippery and gummy.
> Both are not UV resistant, although it might take a while for thick panels to degrade sufficiently to be a problem. It's biggest advantage is it is cheap. Polyethylene is also a very good RF insulator if protected from exposure, but not very strong.
> Grant KZ1W
> On 4/21/2012 8:30 PM, Bob K6UJ wrote:
>> I brought this up in a post about dipole center supports and thought I would ask the towertalk gang about this.
>> I keep looking at those white cutting boards and wonder if they would work for antenna stuff. Anyone know what type of plastic they are ?
>> The ones I have seen are about 1/2" thick and look like they are begging to be used for antenna support projects. They are white and look and feel like
>> teflon, but I'm sure they are not, hihi.
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