POR clearly says that you need the conditioner- especially with bare metal-ie no rust. The stuff loves rust but not clean metal. Go to their site or to a dealer to get a catalog. There is a lot of chemistry in what they do and different levels of protection. POR when used in the 4 steps is considered to be the best. That doesn't make it necessary.
It's all I use now.
Last edited by roger dowty; 08-15-2005 at 11:12 PM.