How long to "book" York wallpapers

From my limited experience, 5 to 10 is about right. I've not done papering for years now. Don't miss doing it either.

Yep. Five - ten minutes is fine. My former GF wallpapered the kitchen 25 years ago.It's still holding up pretty well. It was on new (primed) drywall.

Thanks for the advice. The small bathroom I'm papering is about 3/4 done, I booked for only 3 minutes and it seems to be working out ok, I also sent a message to York and pointed out the problem with their instructions. I' ll post here when I get a response (hopefully they do give a damn about the ir customers).

It can be variable depending upon the hardness of the water. I, and most of the other contractors I know, use a pre-mixed pre-paste adhesive applied with a 7" roller instead of wetting the paper. FWIW YMMV