Clearcoating Decals?

What is the best product for clearcoating decals, once they have been placed on the model? The clear laquers tend to wrinkle decals when first applied over them.

Future

I often use Testor’s Dull-cote in the spray can for a matt finish.
But I have heard very good things about using Future with a small amount of Tamiya’s matting agent mixed in to produce an excellent dull finish.

Are you spraying on you clear coat immediatly after applying them? - If so, let the decals dry 24 to 48 hrs before coating - Laquer clear coating seems to attack decals that aren’t completly dry