Wow, buying these products is really a great investment.
If I had a detailing business I would most definitely but all the products I could in bulk and save even more money.
I got my collinite 845 for $18 shipped, but I just saw AG selling a case of 12 and each comes to around $12.
These products are liked very highly because the cost to quality ratio is very high IMO.
I've got a good number of Polishes on hand here from makers like Wolfgang, Menzerna, Optimum, Meguiars, 3M, and #205 is a product that you cannot go wrong with having on hand always. It is so easy to work with, gives totally outstanding results, and even works beautifully by hand, both applying and removing. Another upside, if needed in a hurry, the auto stores and even wally world carry it in my little one horse town.
For many years I've used Collinite products as far back as about 1989-1990 I believe I am a big time lover of #476, and have used it more times than I can count. Also Fleetwax, and #915.
The person who originally tipped me to Collinite was a best friend Sam in Chicago back then. And for years he touted the Insulator Wax as being his personal favorite from the line. That he really liked the look it gave, and the ease of use.
Well, hard headedly, I one day finally broke down and said what the heck, and ordered a bottle to try. That was about 6-7 years ago.
Coming from 476, and others like Zaino Z2, Megs #20-#21 boy I really fell in love with #845 IW. Foolproof, great shine, hard protective finish, and it lasts.
And as for 476 it's even better in some respects to 845, but it will work you a little bit more cause it's a hard paste. Depends on the temps-humidity and how thin you can spread it.
I might try getting back into the detaiing game again this spring-summer with a few select clients. #845 is a good one to have on hand. Doubtful anyone would ever complain about how their vehicle looks after applying it, and the beading still going strong many months later.