[TowerTalk] center insulator material

[Jon Pearl - W4ABC]

Hi Charlie,


Product info: http://www.kingplastic.com/products/king-starboard/

Retail: 
https://www.boatoutfitters.com/material/plastic-sheet/king-starboard?product_list_limit=36


73,


Jon Pearl - W4ABC



On 2/8/2020 11:57 AM, charlie carroll wrote:
> I need some help selecting some type of material to build some custom 
> center insulators.  I have what approaches zero experience in this area.
>
> The insulators will be used to support near vertical dipoles for 
> 160-meters.  The antennas will be installed in the Caribbean and will 
> need high resistance to UV and salt water.  I also want to install an 
> SO-239 and home made common-mode choke on the insulator.  It would be 
> preferable that I be able to fabricate the final shape with common 
> home workshop tools and not have to rely on a machine shop.  The 
> insulators won't be under a lot of tension because of their 
> orientation, but low weight material would be preferred.  The 
> insulators may be subject to some winds containing sand particles.
>
> I'm looking for some help selecting some appropriate material (UHMW, 
> Ultem, UV augmented HDPE, ...) that I can investigate further.
>
> thanks
>
> 73 charlie, k1xx
>