Agree, once the windows are soapy from foam applications, in an EE adding foam to equipment does not enhance the show. Perhaps for a FS it will.
Wash n Shine, in your post #2 you comment about ho foam applied to material will not flush contaminants as well or work it' way thru the material which would seem to adversely affect lubricity yet you seem to then state it won't.
What am I missing?
Foaming a product at the same concentration as not foaming it will not result in any increase or decrease in lubricity in the chemical itself. However, the state the chemical is in (foamed or not foamed) will impact its ability to penetrate into spinning material and flush it clean.
I think of it this way:
Imagine one of your wraps spinning and you are standing in front of it spraying it with either a foam gun - like in a self serve, or a non foamed liquid out of a nozzle. The lighter and more airy foam out of the gun will not penetrate as well as the liquid coming out of a nozzle. The heavier (no air) liquid can drench the material more easily because it will be able to get pushed further into the brush whereas foam will not as much.
Sorry if that was not clear in my first post. But again it is not a lack of lubricity in foam that will not flush contaminants as well, but rather the physical properties of a liquid that will penetrate and flush better than the physical properties of lighter foam.
This has been my experience over the years and I base my opinions on what I have observed at my washes.
I hope I clarified my opinions.