You might wonder where I have been all these years but until yesterday
I have had no need to use no more nails. I have bought a competitor
brand, Polycells's Strong Hold.
The instructions say
6. Press item firmly into position ...
7. Allow to dry for 24 hours
8. Pull the surfaces apart IMMEDIATELY press into place again
They don't mean that do they? There is no way I am going back 24 hours
later to pull my work apart. Just checking.
Back on line again after her computer died :-( Luckily it went hiccup
hiccup death so I was able to get an up to date backup.