[TowerTalk] Insulating towers

[Charlie Gallo]

On 12/26/2013 Patrick Greenlee wrote:

> Any thoughts on insulating a tower?  I have some Rohn 25 that I want to use
> to make a home brew version of a Hy-Gain Hy-Tower multi-band vertical.  I am
> considering two approaches:

> 1.  Buy a plastic cutting board to cut up for material to home brew 
> insulators to be electrically between the tilt base and the tower proper. (I
> have a friend with MS Mech Eng and 35 years hands on experience who will, if
> asked, consult on this or help me design it.)

The issue with plastic cutting boards is that they are made from High Density Polyethylene (HDPE)  HDPE will "cold flow" (technically called Creep), and is known for "Poor weathering resistance"

You may want to look at one of the "filled" versions, or some other filled engineering grade plastics - or use something like PEEK, PES or even Phenolic

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-- 
Charlie
www.baysidephoto.com
www.thegallos.com


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