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?