[DannyBee]

Yes, i agree with your viewpoint of what Metallizing is about, though Metallizing is still generally considered a secret prior art case, in the way "secret prior art" is used: Things the inventor could not have possibly known about at the time of filing, even if they had attempted to know everything.

In that sense, it is in fact, a secret use, even though the holding was that it was a public use :)