It sort of depends on how many coats you want. You can do a good layer of Klasse AIO and SG in about an hour or so. Same with Blackfire. I don't know about Zaino but I would imagine it would be the same. Just tack an extra hour onto your average detail time. Check the Product Review section. I put a bunch of threads down there that were Klasse and Zaino related so you can get an idea of what you want to use. I think there are some Blackfire posts down there too but you could do a search and find some either way. Good luck! :xyxthumbs