We have used IJ40 in the past on several wall wraps and most of them have done well. As others have said on this thread, each wall is going to be different and needs to be tested. We have one client in particular where several of their wall wraps with IJ40 have failed, they are willing to spend and have the dollars to support using IJ180, we haven't a single issue with one of the wraps installed with IJ180. If you're lucky enough to get the client to repaint the wall or catch them in the construction phase, they should paint with a non low-VOC paint. Low-VOC paints do not like wraps, and textured finishes do not like anything other cast films that are heated in, we usually do this with a heat gun and a rolly-pro.