Sir Nancy Flowers
ClioSport Club Member
M140i
Its most visible when just doing a 'foam and rinse' kind of wash. I mainly do these in the winter just to keep the car looking good when the weather is freezing or I dont have the time to go in for a contact wash.What residue did you get from BH Autofoam?
I've only used it 3 or 4 times, but it's rinsed down fine for me.
I used to notice it mainly on glass (especially tinted windows #drugdealerspec) and its a bit like when foam dries on and leaves a kind of smear behind. It definitely didnt dry though. I could be wrong here but I think its to do with the anti-corrosion chemicals in AF that BH are famous for. Its quite well documented on Detailingworld that AF can smash some LSP's or reduce beading after not going in for a contact wash