Mike< as per your statement,on the decals being wiped with denatured alky or some other cleaner, I have worked with your graphics on a few boats, as with any graphic I never use a solvent based cleaner of anykind.i always apply the decals as per manuf, directions and use nitrile gloves to avoid getting dirty smudge prints from oily fingers.. at the bodyshop I am emloyed at we use standox products( a division of formerly Du pont, now Axalta} they have a fantastic water based cleaner, thats is the only thing i use on the boats after graphics are applied, has worked for me for years, maybe your clients could check with their local jobbers and get a comparable product, just my 2 cents.... will call you with a thunderboat graphic order in the following months..have a good turkeyday....( i am the painter that painted Ed Krumnows boat in your gallery, all graphics were applied and cleaned in the way I have described) thanx......larry