I'm going to try Optimum Polish for the first time and I was wondering if I can put my sealer (4*UPP) on right after the polish or if I need to use a cleaner first? Does Optimum leave oils that will affect a sealant?
You'll be just fine going right to UPP if ou want. Personally, I like to use UPC before UPP, but that's just me. I like the slickness and squeaky clean feeling I get from UPC. But, it isn't required at all with Optimum.