The average time for drying is somewhere between 24-48 hours. However, some wallpapers can take up to two weeks before the adhesive is completely dry and set.Click to see full answer. Also asked, how long does wallpaper paste take to dry before painting? 36 hours Additionally, is it hard to put up wallpaper? It’s difficult to make perfectly straight, long cuts on a vertical surface, even when you’re using a straight edge. Especially when your wallpaper is as thick as cardboard and you have two layers of it to cut through. Considering this, do air bubbles dry out wallpaper? Most blisters and bubbles disappear after the wallpaper has had time to dry, so don’t worry too much. Draw up a bit of wallpaper paste into the syringe. Then penetrate the bubble with the pointed needle and carefully squeeze the paste underneath the paper.Can you paste the wall instead of the wallpaper?As its name suggests, ‘Paste the wall’ papers allow you to apply your paste to the wall before hanging, rather than to the back of the wallpaper. Yes, if you find it easier to hang conventionally then you can paste the back of Paste the wallpapers. It’s still quicker as there is no ‘soaking time’.