Zymol is the best stuff available and is totally natural, carnauba in its natural form is harder than concrete and zymol contains way more than the others so offers more protection. many people find it difficult to use and the instructions a bit baffling but if you get the correct info it is simple and easy.
the whire residue some of you complain of is chalk which is used as a drying agent, but read the bottles and see some of the other ingredients (petroleum dissilate) solvents, harsh chemicals who would want to put these on there car when natural products far superior are available. the products are also not expensive, you just get a lot for your money, please, please please drop me a line if you need any help.
