Dave,
The best bamboo that is used for fishing poles and spreaders has been
"flame" cured (dried) which hardens the wood (drives the moisture out) and adds
a
hard finish which is somewhat blackened by the flame. DO NOT char the
surface, but raise the surface temperature until some blackening occurs. You
might
Google for some specific details, Southern Louisiana is a popular place for
the cane pole industry.
Norm W4QN
=================================================================
Message: 8
Date: Wed, 26 Dec 2007 18:58:11 -0500
From: "WA3GIN" <wa3gin@comcast.net>
Subject: [TowerTalk] Bamboo Quad Spreaders
To: _TOWERTALK@contesting.com_ (mailto:TOWERTALK@contesting.com)
Hi Folks,
Santa brought me a dozen 40ft bamboo stalks freshly cut and ready for drying
and UV sealing treatment.
I'm looking for suggestions regarding the sealing paint/varnish material
used.
In the past 920 years ago) I used marine spar varnish which was mixed for
100% outdoors use...much has changed in the paint/varnish industry since then.
I have no idea what works today.
I tried polyurethane on one element and it flaked away in a few years of
exposure to the sun.
I'm also open to speader color ideas. I know from experience that people who
paint their front doors black experience severe wood spliting, apparently
from the excessive heat build-up when the doors are exposed to sunshine, so I
think black is not a good color but what about silver, white, sky blue?
Thoughts are welcome,
dave
wa3gin
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