It's all about Fiberglas today, from Owens Corning. The first ad is from 1939, for Fiberglas Air Filters:
Fiberglas draperies from 1957:
These next ads are from 1968:
And here's how the Fiberglas insulation looks "Now":
I couldn't find out exactly when Owens Corning began using the Pink Panther in their advertising, but yes, he's still there!
Cue the Henry Mancini theme.....