I used a standard Everbuild high-modulus general-purpose silicon sealant to fit a new door sill, it had the usual smell of acetic acid but it also had a curious lumpy texture, like porridge. Now 24 hours later it has not gone off, it's still as sticky as when I applied it. It is behaving more like the low-modulus stuff I have used for fitting double-glazed units in frames.
Anybody else come across this?
Anybody else come across this?