Gtechniq has been hard at work on this new formula and it took 54 different iterations before they settled on one for release. You heard that correctly, fifty four different formulas! This version, v5, offers a denser final surface that is less porous, decreasing coating clogging and increasing overall hydrophobics. Toss in the single layer application and a 9% increase to the gloss meter from v4 and EXO v5 is one every detailer needs to try out.