[TowerTalk] Lexan

[K8RI on Tower talk]

> Jim:
> Also Fiberglass bars can be used , the cutting board brings some ideas to 
> my head, i get a few years ago

Fiberglass resin normally does not stand up well to UV unless protected.

>some industrial material , Nylon or similar, that was used for gears in 
>some food machine, the one that can be >easy cutted in good element 
>brackets,  also in the N6CA web page  he use something that can be good 
> >option.

Nylon is not normally a good electrical material in wet environments.

>
> and also I want to get a good design of 6m Antena using the 3/8 elements 
> and KLM original mounting  , i >have a 7 elements that i wll like to 
> convert in a bigger gain  antenna.

Some of the old KLM element insulators had a relatively short life time due 
to UV deteoration. I think I replace the ones on my 2-meter FM beams (14L) 
twice.

The one son the 20 and 15 meter beams held up well but I only had them up 
about 5 years.


Roger Halstead (K8RI and ARRL 40 year Life Member)
N833R - World's oldest Debonair CD-2
www.rogerhalstead.com
>
>
>
>
> Hector Garcia XE2K / XF1K
> Mexicali B.C DM22fp
>
> http://www.dxxe.org
>
>
> ----- Original Message ----
> From: Jim Miller <JimMiller at STL-OnLine.Net>
> To: TOWERTALK Reflector <TOWERTALK at contesting.com>
> Sent: Sunday, June 25, 2006 9:12:45 PM
> Subject: Re: [TowerTalk] Lexan
>
>
> I would like to see replies about using kitchen cutting board material for
> this purpose.  Strength, UV, etc.
>
> tnx es 73, de Jim KG0KP
>
> ----- Original Message ----- 
> From: "Ed Stallman" <n5blz at ev1.net>
> To: <6mEME at yahoogroups.com>; <towertalk at contesting.com>
> Sent: Sunday, June 25, 2006 9:37 PM
> Subject: [TowerTalk] Lexan
>
>
>> I'm building a 6 meter yagi and I'm insulating the elements from the 
>> boom.
>> my plans are to use a U bolt with saddle around the boom, then use lexan
>> fastened to the saddle with the 1/2 inch element then fastened to the
>> lexan. The question I have is who is a good source for lexan? I did a
>> search on MCMASTER-CARR web page http://www.mcmaster.com/ for lexan and I
>> found POLYCARBONATE Sheets 1/4 inch thick PN 85805 K28
>> Will this be strong enough? will it hold up under UV ? They have other to
>> choose from, so is their a better choice?
>>
>> Tnx for ur help Ed N5BLZ
>> _______________________________________________
>>
>>
>>
>> _______________________________________________
>> TowerTalk mailing list
>> TowerTalk at contesting.com
>> http://lists.contesting.com/mailman/listinfo/towertalk
>
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>