Sealer for stamped concrete?
 

Does anyone have any recommendations for a good clear sealer for
stamped concrete? The original application was done by the guy that
did the concrete and was an organic solvent based product. Since
then, I've done it several times using a water based acrylic product
that is also used for pavers. However, the solvent based one looked
better and lasted longer, so I'm likely going to go with that type.
Anyone have any suggestions?