No, in fact, I believe it is best to actually use a wipe on/wipe-off method. IHG is nothing more than mineral oils, so if it is left to dry on the surface, it can be rock hard to remove requiring massive buffing. Oils really do not need to cure, they are just oils and do not bond to the surfance.
As TigerMike said..best to wipe in on..work it in some and remove..if it dries on you you will have a workout getting it off...It does not need a cure time..in fact the sooner you apply your wax the better...it will lock in the fillers...do not use alot of the product..go as light as you can..
Also use a few MF towels as when you remove it ..the glaze will clog up the towel..and may dust some during removal..
Heh heh, IMO the IHG's effect isn't nearly as great as that of the Meguiar's stuff
Directly comparing IHG to #5 (which is probably the least impressive of the Meg's pure polishes) convinced me to leave the IHG on the shelf. But yeah, the IHG and #7 have a lot in common.