Quite a while ago I bought some neutral cure silicone sealant (probably
several years, IIRC from Screwfix - but not sure). The original reason
for buying it disappeared (change of mind), but, needing some sealant
yesterday, I opened it. No surprise - a small plug of set sealant came
out - but the rest seemed OK. (Never having used NC before, I couldn't
be sure.)

I used it on the WC connector (which I had dismantled to fit new floor
covering) - and yet a full day later it has pretty much the same
consistency as when I applied it.

o Has the sealant 'gone off' in the cartridge?
o Is NC silicone very similar to ordinary acetic forms?
o Anything I can do to force it to cure into a solid?

--
Rod

Hypothyroidism is a seriously debilitating condition with an insidious
onset.
Although common it frequently goes undiagnosed.
www.thyromind.info www.thyroiduk.org www.altsupportthyroid.org

On Sun, 01 Mar 2009 15:41:02 +0000, Rod wrote:

I used it on the WC connector (which I had dismantled to fit new floor
covering) - and yet a full day later it has pretty much the same
consistency as when I applied it.

o Has the sealant 'gone off' in the cartridge?
o Is NC silicone very similar to ordinary acetic forms?
o Anything I can do to force it to cure into a solid?

I think it's gone off. I had this happen to me, and the sealant cured eventually
-- it took at least a year, though. The chemist I asked said that the catalysts
in the non-silicone do go off...


Thomas Prufer

Thomas Prufer wrote:
On Sun, 01 Mar 2009 15:41:02 +0000, Rod wrote:

I used it on the WC connector (which I had dismantled to fit new floor
covering) - and yet a full day later it has pretty much the same
consistency as when I applied it.

o Has the sealant 'gone off' in the cartridge?
o Is NC silicone very similar to ordinary acetic forms?
o Anything I can do to force it to cure into a solid?

I think it's gone off. I had this happen to me, and the sealant cured eventually
-- it took at least a year, though. The chemist I asked said that the catalysts
in the non-silicone do go off...


Thomas Prufer

Thanks. I feared as much.

--
Rod

Hypothyroidism is a seriously debilitating condition with an insidious
onset.
Although common it frequently goes undiagnosed.
www.thyromind.info www.thyroiduk.org www.altsupportthyroid.org

On Mon, 02 Mar 2009 08:44:32 +0100, Thomas Prufer wrote:

On Sun, 01 Mar 2009 15:41:02 +0000, Rod wrote:

I used it on the WC connector (which I had dismantled to fit new floor
covering) - and yet a full day later it has pretty much the same
consistency as when I applied it.

o Has the sealant 'gone off' in the cartridge?
o Is NC silicone very similar to ordinary acetic forms?
o Anything I can do to force it to cure into a solid?

I think it's gone off. I had this happen to me, and the sealant cured eventually
-- it took at least a year, though. The chemist I asked said that the catalysts
in the non-silicone do go off...

Thomas Prufer

In the days of 'RTV' used in military and aerospace apps., before becoming
available generally (cost a bomb), we used to keep it in a fridge; I still
do, as my usage is intermittent, and it seems to last for 3 - 4 years.
--
Peter.
You don't understand Newton's Third Law of Motion?
It's not rocket science, you know.