? About old/new putty

[May]

On the window I'm doing, most of the old putty's ok and well and truly stuck
in place so I don't see that I need to remove it - but there are many thin
horizontal cracks in it. Is it sufficient to open these out a bit (eg
with a bradawl) and fill with some new (multi-purpose linseed oil) putty
I've bought?

When it's dried out, should new putty first be painted with a primer or just
u/coat and topcoat?

tia

[PeTeG]

"May" <m...@mayormaynot.com> wrote in message
news:bhfnn3$c9v$1...@news6.svr.pol.co.uk...

Reverting back to my Good(?) old days as a Commercial Glazier, for linseed
oil putty to do its job properly, it must remain flexible. So that the pane
is always supported on a shock absorbing bed. Necessary in opening windows &
glazed doors (wind = slam !!). To keep the putty flexible it must be sealed
(with oil based paint) before it dries out. In fact Local Council
Contractor's spec states that the paint must completely cover the putty &
1/8" up the glass.
So technical, you should hack out (yes, the correct term) the old putty,
(try doing that without breaking the pane!) and replace with new.
But having said all that, your idea of filling and painting over is okay. I
would paint with just the same paint as the rest of the frame as long as one
is oil based.

Peter
(Pull finger out to reply)

[May]

PeTeG <p.j.galswo...@rl.ac.uk> wrote in message
news:bhgab0$16...@newton.cc.rl.ac.uk...

> >
> Reverting back to my Good(?) old days as a Commercial Glazier, for linseed
> oil putty to do its job properly, it must remain flexible. So that the
pane
> is always supported on a shock absorbing bed. Necessary in opening windows
&
> glazed doors (wind = slam !!). To keep the putty flexible it must be
sealed
> (with oil based paint) before it dries out. In fact Local Council
> Contractor's spec states that the paint must completely cover the putty &
> 1/8" up the glass.
> So technical, you should hack out (yes, the correct term) the old putty,
> (try doing that without breaking the pane!) and replace with new.
> But having said all that, your idea of filling and painting over is okay.
I
> would paint with just the same paint as the rest of the frame as long as
one
> is oil based.
>

Thanks very much!! Interesting, too, the bit about painting as far as 1/8"
up the glass.

[in...@nrginternet.comremove]

it's called the painters line

"May" <m...@mayormaynot.com> wrote in message

news:bhh2jj$6i9$1...@news7.svr.pol.co.uk...