Many decal makers are now insisting on the 1ml layer of vinyl to hold the decal and make it easier to apply. I'm not a big fan, but I just used some on a powder-coated bike, and I'm much less nervous about decal damage, and part of that is due to the 1ml vinyl layer. I see no need to clear on those. You can see the edges, though. Now, if you wet-sand and apply the decals, even with the vinyl, when you clear-coat, the edges pretty much disappear.