[TowerTalk] fiberglass mast question

[Patrick Greenlee]

Bill, Prep with a generous solvent wash.  Do not just wipe with solvent 
dampened rag as that just spreads around what you need to remove.

Paint with (preferably 2 coats) a good exterior UV stable enamel like 
polyurethane enamel or a good brand of one or two part "boat"paint for 
fiberglass boat's topsides.

This will likely give more than 10 years of life.  If later it starts to 
look too ratty then a light scuff sanding and another coat of paint will 
likely extend the life another 10 years or more.  I have had fiberglass 
boat decks exposed to salt air (and water) and oodles of sunshine plus 
foot traffic last over 20 years with the above recipe. It is unlikely 
you will get long service from really cheap "bargain" paint.

You are using your expensive time and muscle (a valuable limited 
resource), so don't ruin the job with substandard materials.

Patrick       NJ5G


On 3/28/2018 10:36 AM, bill K7WXW wrote:
> I am making plans for a 16' mast that will hold dual band and GMRS 
> antennas (Comet GP-3 and Tram). I have a stack of Army surplus 
> fiberglass mast sections that I'd like to use for the project. Here's 
> my question: Given their tendency to flake and susceptibility to UV 
> damage, what's the best way to prep them to improve their longevity?
>
> I don't need the mast to last forever but ten years should would be 
> nice. ;)
>
> thanks and 73 de bill K7WXW
>
> ______________
> brevity is beautiful.
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