Paul, the answer to your muddy car question is; yes.
Martin,since you are a newcomer to the car wiping trade, I am wondering wether your familiar with soft clearcoats,micro sratching and swirling etc?
Len,a division of our company is involved in contract car valeting and does between 12 and 15 thousand valets,on new and used cars,yearly.
I can assure you ,we have tested these products.
The first time it was offered to us was in the early '90s(Driguard).
These products are maintenance potions for lighty soiled paintwork.
Furthermore the trend amongst carwash manufactures/operators is now developing towards touchless or brushless systems,makes you think he.
David.