I PVAed several bits of gripperrod to dry cement screed, left them
overnight and not one stuck. But why? I thought pva liked both wood &
cement/sand.

Lots of undiluted pva used, items all weighted down overnight. One I'm
not confident on though, I used No Nonsense brand pva - I normally
steer well clear of that brand, but figured 48% pva is 48% pva whoever
its from.

Where did I do wrong? Unfotunately its too late to see which surface
the pva failed to stick to.


NT