I use the Micoscale product. It works great. I have had this same problem with some Slixx decals. They sent me a bottle of the Microscale product and some extra decals. They told me that there was a batch of decals that did not coated. I have used the Testors spray decal coating as well and it works good too. I agree that you should not have to coat a new set of decals but you don't know before you use them and then it stalls your product because you have to contact the mfg. for a new set.