even acrylic crystal clear from a can affects the glue on decals.
KBS Diamond coat is guaranteed not to react with any other paint.. which it doesnt. havent used it on a vinyl application yet though.. maybe i should experiment and find out?
Unfortunately KBS does react with the glue on decals, I found out the hard way
Point to note though, I didn't spray it, hand applied. As you said it rippled some of the decals along the edges.