Quote:
Originally Posted by dP3NGU1N
The foam is suppose to act as a lubricant for all the stuff that's caked onto your car. It's there to remove large particles and help to dissolve bird **** and tree sap. After you rinse that off then you still need to go over the car with a wash mitt and 2 bucket system to get rid of some more stubborn areas. If you've done the foam step right y ou should never need to apply any pressure to the wash mitt greater than the weight of your hand.
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Correct- the foam helps to break up contamination and help lift it off of the paint prior to the hand wash, which hopefully will keep you from having to push down on the paint with the mitt to wash the panel down (which causes contaminants to embed in the paint and also leaves swirls).