Fixing a mirror into a wooden frame

Provided it isn't an old and valuable mirror (among other things the silicone might affect the silvering badly) I'd think this would be fine.

Nick

Have you seen

I have now, thanks. I assume it does not have the same destructive powers of silicone sealant, since it is meant for mirrors.

In another NG, they suggested panel pins. I would think I would have to put a sheet of cardboard between for that, so I don't get a scratched mirror over time.

Bob

For that size glass, 3/4" panel pins. Lay the pin flat on the cardboard, push down hard and whack it with the edge of a flat sided chisel or similar. Difficult with a hammer.

I actually have a panel pin pusher that I have only used once before, that should do the trick.

Bob

Not ideal because the pin will be at an angle equal to the size of the pusher's handle plus your fingers, and often the rebate isn't deep enough for an angled pin.The beauty of the chisel method is that the pin goes in flat *and* square and stops the glass rattling. For a one-off small mirror you could always bend the pins flat.