[Antennas] Fiberglass Paint

Thu, 08 May 2003 17:16:31 -0700

Dave,

Decibel Products has an application note on their website about what
paint to use on fiberglass radomes.  The term "radome" includes the
fiberglass tube that encloses the elements of vertical colinear
antennas.  You might also check with RFS/Celwave for the paint they
recommend for their Stationmaster antennas.  As I recall,
Sherwin-Williams is one of the few manufacturers of the special
polyester epoxy paint that sticks to fiberglass and is RF transparent. 
The same stuff should work just fine on fiberglass spreader bars.  Be
very careful about using discount-store paint.  Not only might the cheap
paint contain pigments that are conductive, but the formulation may not
be consistent between batches.

73, Eric Lemmon WB6FLY

Dave Thomas wrote:
> 
> I need to paint the fiberglass spreaders for a quad I recently obtained.
> They are presently in their manufactured state (never used but 20 years old)
> and should be protected from UV. I prefer to color them green for camouflage
> with spray paint(Krylon) from Wal-Mart. I have heard comments as to the
> right and wrong types of paint (another reflector) with respect to it's
> conductive properties. I am not familiar with this problem and wondered if
> anyone else was.
> 
> Thanks,
> 
> Dave Thomas N4CLR
> 
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