[TowerTalk] Adding Expanding Foam inside boom
jimlux at earthlink.net
Thu Apr 26 09:06:01 EDT 2018
On 4/26/18 3:34 AM, john at kk9a.com wrote:
> I'm not sure how you would completely fill a 12' piece of tubing with the
> foam and I think it would have the potential to trap water. I like to
> keep my booms completely open (no end caps).
> John KK9A
the other problem is that the foam may not "cure" properly in a sealed
(or nearly sealed) container. The tesla coil community has fooled with
this to make large toroids by doing stuff like filling a truck tire
inner tube, or a ring of expandable duct, with the foam, in an attempt
to "rigidize" it.
I think the take home from all those experiences is that "it depends on
the brand and type of foam"
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