aren't as waterproof as straight phenolic tubes. Especially the ends where
the paper sandwich may be exposed. So next time you build something with
those tubes please seal the ends with epoxy or CA. I know this from
experience (I wet sanded one and I noticed that the ends were un-wrapping
itself... had to fix it with a dab of CA)
Im just saying the flexible phenolics has drawbacks as well...
--
TAI FU
formatting link