Any tire "dressed" would have to be cleaned of all product to get anything else to stick to it..
A proven product, that has been out for years, Tuff Shine Clear Sealant is really great..
Once your clean your tires really well, (and they make an outstanding cleaner for this as well), a few coats of this will keep your tires really nice and black, not sticky or greasy, not ugly, just perfect, and again, proven in the Pacific Northwest, to out last anything out there..
Have been using it on my personal car/s and Clients for years, and especially love getting a return Client that was treated such, knowing I will have very little to do to get the tires back to beautiful..
Good luck with your research -
DanF