Just to verify paint peeling off the wall when sticking with Photo Tex - the key is the wall needs to be primed and painted, if there was no primer used then any adhesive can take the paint off. 99.5% of all surfaces are primed. Also like you mentioned just old paint jobs with several coating can be an issue. The good news with Photo Tex is the adhesive does not strengthen over time like all the others
Also the new EX stronger adhesive is now 50% stronger than when we brought in the first batch, as I agree the first batch needed more of a kick, so we are happy to send a new sample for testing this strength.
wanting better color - please e-mail me and let me see who we can hook you up with to tweak the color.
walterjr@phototexgroup.com