What causes shrink back (joins to open)?
Shrinkage occurs when the wallcovering does not adhere to the wall properly before drying. Most wallcoverings expand when wet and will try to shrink back on drying if the wall adhesion is poor or the paper is over-stretched. If the wall surface has been correctly prepared, the paper will soon adhere to the wall and should not shrink back whilst drying. Poor wall adhesion can be caused by poor wall preparation or by too little/too weak adhesive and the wallcovering starting to dry out before the hanging commences.
