Post
by Surrey Sam » Sun Mar 27, 2016 8:17 pm
It's absolutely pointless foaming a wet car.
Water has an inherent property called surface tension; this is what pond skaters utilise to move across the water surface in a natural wildlife pond and not sink. If you foam a wet car, then the foam will slide across the wet panel doing virtually sweet FA because of this surface tension!
A good quality snow foam will not remove any LSP previously applied the paintwork, the vast majority are PH neutral products. The design of the foam is to agitate and lift dirt away from the surface, so that water can move it away from the paint. Also, don't be fooled by the - more foam = better clean, way of thinking. Letting a foam dwell for more than 10 mins is also asking for trouble; you should not let any cleaning product dry out onto the paintwork.
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