The plan is to buy fiberglass tubes from MGS4U, a site selling to hams, and
apply my own primer and paint. They claim their fiberglass already has the UV
additives.
The idea is to have a X arms support for wire antennas on top of my 95' tower.
The QTH is VE3 with -20F cold winters and 90F sunny summers.
Can you recommend specific marine grade primer and paint?
Rudy N2WQ
Sent using a tiny keyboard. Please excuse brevity, typos, or inappropriate
autocorrect.
> On Jul 30, 2017, at 9:05 AM, Patrick Greenlee <patrick_g@windstream.net>
> wrote:
>
> Not all fiberglass (AKA GRP Glass Reinforced Plastic) is created equal. Some
> is made with Acrylic resins, some with various epoxy resins and so forth.
> Some have UV stabilizer(s) in the mix and some don't. Comparing anecdotal
> "evidence" of environmental robustness is essentially futile unless the nitty
> gritty of the chemistry is also known. It is like saying, I have a bag of
> stuff and it is pretty heavy and when exposed to the weather in Minot, ND
> during a really cold winter it didn't catch fire. Now compare that to your
> bag of stuff in a meaningful way.
>
> Painting fiberglass? Is it contaminated with mold release? If yes, then
> what kind, silicone, water soluble, or what. Many variables to consider when
> painting fiberglass. Clean is good. Lightly abraded to foster tooth is good.
> Well proven coatings successfully employed on fiberglass boats with exposure
> to sunlight and foot traffic are good candidates for fiberglass coatings
> exposed to the weather in many ham applications.
>
> Patrick NJ5G
>
>
>
>> On 7/30/2017 12:41 AM, Wes Stewart wrote:
>> I was thinking about building an LPD antenna and purchased some Strongwell
>> 2" square fiberglass tubing about 7 years ago. I never finished the project
>> and the tubing has been kicking around the yard in the AZ sun since then. I
>> see no signs of degradation and it had no treatment whatsoever.
>>
>> Contrast that to the fiberglass military mast sections that turn to
>> hazardous waste in a year or so.
>>
>> Wes N7WS
>>
>>
>>> On 7/28/2017 6:27 PM, Rudy Bakalov via TowerTalk wrote:
>>> Hi folks,
>>>
>>> Does anyone have first hand experience to share? What can I expect from
>>> primed and painted UV resistant fiberglass?
>>>
>>> Thanks!
>>>
>>> Rudy N2WQ
>>>
>>> Sent using a tiny keyboard. Please excuse brevity, typos, or inappropriate
>>> autocorrect.
>>>
>>
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