>>10325773>should I apply varnish (Vallejo matt varnish) when Im doneIt really depends. If you have decals you want to seal, or if your paint was glossy and you want a matte finish (or vice versa), then yes, you should spray a clear coat of appropriate type after you're done. Otherwise, you don't have to.
Contrary to what
>>10325779 says, clear coat is not a magic elixir that makes everything look better just by being there, it all depends on the effect you want to achieve.
Can't say good things about Vallejo though.