In replacing window glass, my dad taught me (perhaps 35 years ago) to
clean the surfaces where the replacement glass will contact the (wood)
window frame, prep the surface with boiled linseed oil so the wood won't
absorb oils from the glazing compound and dry it out prematurely, and
then apply a small bead of glazing compound around the perimeter of the
Then install the glass, seat it against the compound & secure with
Fine, but now, I have a bunch of really old windows with dried out
glazing compound between the glass & frame, so they leak air & water.
Otherwise they're sound, and they look good, so I can't justify
replacement (even if I could find a replacement product).
The question is, what would be the downside of applying a bead of
silicone or siliconized latex caulk around the perimeter instead? I
could predict some difficulty in removing the glass, should I ever have
to deal with the same window again, but otherwise?
The window panes are fairly large (26 x 36, some of them) and the glass
is very old, and probably brittle. I'm concerned about pressing too
hard to seat the glass into the frame, and the glazing compound is just
too stiff to allow the glass to set down in there. Besides, the
silicone is so much easier to work with.