Akzo Nobel is Sikkens, Lesanol, Wanda, U-Tech, maybe others? ........ all of it commonly used in the auto body industry; and in my opinion, there isn't much difference in any of them
BASF is Glasurit, R-M, Limco.......
I'm not as familiar with PPG, but I know they offer a "Shop Line"?, something like that.....
I would never use any really cheap generic materials, that would not be a gamble I'd be willing to take.......
but sometimes I think the "very top of the line" exists for people who "must have the best at any cost"......
see post #4