How would you describe the difference? I've got 845 on a black pearl GTI right now and I really like the way it looks.
I'm not sure I want to go back to a past wax since I really like how easy 845 is to apply by machine, but it's testimonials yours that make it tempting. Too bad I now have a decade-long supply in that 16oz 845 bottle!
I know it was thought for many years, that a paste wax would usually be more durable, and outlast a liquid wax. Perhaps the inherit quality of quite a few that could be quite hard to remove, and thus people thought that if it was hard to buff to a shine, and rub off, then it "must last longer".
Through the years there's been of course "hiccups", that a liquid came along that had very decent durability, and would outperform some pastes.
I would say that Collinite #845 IW is one of those that breaks that mold, it has very good durability, and on the same hand won't work you to death. As I understand though, #845 is a hybrid, containing both natural, and synthetic Polymer Sealants.
As for any of the Collinite Pastes, they too may also include synthetics? I've never seen claim either way?
I'm going by an old, somewhat fuzzy memory, but I believe #915 was reputed to have the highest concentration of Carnauba, yet is not purported to be their longest lasting product. That honor I believe goes to #476 Super Doublecoat Wax. #915 might "look" better, but is said to be not as durable as #476.
So then, why would #476 be the longest lasting product they make?
Again, I might assume a fortification of another ingredient, perhaps synthetic?
I've used them all for many years on many vehicles. In any instance you truly cannot go wrong with any of the Collinite products.
The things I have learned about Collinite, is not only their initial wow factor, that you know pretty much immediately that these are products that stand apart in many ways, but down the road, and after time, and washings pass, they all hold up extremely well, they continue to keep a finish looking great, and this IMO equates to less work over time maintaining a vehicle.
I cannot say the same about many other pastes, and liquid wax-sealant products.
Mark