DIYbanter - View Single Post - Replacing window pane. 'Putty' recommendations.

Stuart Noble

wrote:
wrote:

I thought acrylic sealants were generally not as long lived as
silicone, which itself isnt longlived enough for wooden glazing.
Linseed normally lasts over a century. It can fail of course, but as
often as acrylic? I doubt it.

NT

I find white silicone very convenient to use rather than putty. You
could run round several windows in an hour with a tube of silicone

But could you get a good finish and not get any on the glass? Also,
being soft and rubbery, it attracts dirt.

if you were to replace the putty it would take days.

You've obviously never watched a glazier puttying a window. It is
precisely because it's so cheap and fast to apply that they continue
using it.

Putty has had its day. It is obsolete because its so difficult to
remove

Not half as difficult as silicone. Glaziers won't touch windows where it
has been used

and when it drys it lets the rain in. I wouldnt take it for
nothing.

Unfortunately it lets the rain in before it shows any outward signs of
failing. By the time the paint film cracks, the damage is done.

We have to move on with the new materials. I guess silicone and related
products have replaced many of the difficult finishing jobs like
sealing door and window frames and skirting and decorating etc etc.

Agreed, but silicone is not a good replacement for putty.