Quote:
Snow foam is a great tool to use but as well as taking off the dirt and loosening stubburn dirt it also takes off any wax and protection too
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A good PH Neutral snow foam won't touch your wax layer

Will just help soak the dirt making it easier to rinse / wash clean without having to use or rely on the wash mit to take the dirt off......
Although to a degree, each and every wash of the car even using PH Neutral products will have a small effect on the wax layer on your car but generally using a good snow foam or wash products is not seen to be the biggest factor in a wax being removed or degrading because of it....