If you are unsure of how to use any Zaino product, I would definitely recommend calling them on the phone and getting it straight. In the meantime, I believe ZFX is a chemical you mix with a small amount of Z2 or Z5 to quicken the drying time. Prior to ZFX, you had to coat the finish with Z1, apply Z2 or Z5 over it and wait at least one hour, which was optimistic, for the whole thing to dry. ZFX allows you to remove the Z2 or Z5 in a matter of minutes and further allows you to apply a second coat of Z2 or Z5 immediately, as opposed to the 24 hr. wait time previously required. Again, this is just for your information. Contact Zaino directly with any questions. You paid a lot of money for those products and they will be glad to help you with them.