Flat Out Flat is safe to recoat with proper cleaning and scuff sanding.
General Finishes does not use a wax such as parafiin, carnauba or PTFE (Polytetrafluoroethylene) that cause adhesion failures in the finish Flat Out Flat.
We do use a very small amount of a different wax (part of the secret sauce) and it is used to improve matting, abrasion and mar resistance.