Automotive Clear will work fine but you MUST put on a light dust coat or 2 and allow to flash to seal it in before you do a wet coat of clear. Bond all will help also if you heat set it. Wicked Colors from Createx has some nice effects also with better adhesion. Watch your shading with createx paint as the opaques are not fully opaque.
I like to use a test panel when I am not sure what will happen when combining different medias
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