Foam Gun test with various shampoos

JamesLA said:
How did you assess/score cleaning ability when you were spraying the car multiple times with multiple products? It seems nothing after the first spray would be able to provide a valid assessment. For me the one and only factor that would matter is how much dirt comes off when I foam and then rinse.
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I was sort of thinking the same thing. The test seems great to show who foams the longest but that is not really a true test of cleaning ability.
 
I dont have a foam gun yet but I'll assume the reason they measure dwell time is they are using it like a pre-wash. This would help to loosen and remove dirt before washing to decrease the risk of inducing marring.
 
thecarguy said:
what is dwell time?



do you not rinse this stuff off? (or, why do you let it set 5 minutes)
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Yeah, that's the right idea.



Dwell time is the period that the product sits on the surface- letting it soak for a while gives it time to do its thing. Like spraying a stain remover on laundry and letting it sit for a while before putting it in the washing machine.



I don't let it dwell that long though, don't want to risk it compromising my LSP let alone drying on the finish. Spray it on, let it dwell, then proceed per usual. It just gives the shampoo a little time to start dissolving any built-up dirt.
 
Great write up and pictorial :thx !!!!!!!!



the funniest reply had to be comparing a foam gun with simple green foaming spray bottle. Some people just spend too much time behind the tailpipes if you know what i mean
 
JJ_ said:
Thanks for keeping this alive guys! :)
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I've got the karcher and will get the foam wand this weekend. Is this combo adequate for quick washes in the winter when it's too cold for a hand wash?
 
I just got my Gilmour gun today and couldn't wait to try it out (even tho it's been drizzling all day). The wife's WRX was absolutely filthy, so I did a strong dilution of Z7 and went at it. Easily went over the car 2-3 times, cranking the gun up to high soap usage, then rinsed off. I'd say it did a great job of cleaning up loose pollen and dirt. I'm going to love using this thing and I think the wife might actually WANT to wash her car now :)



I got the gun at autogeek on sale along with some of their brass quick disconnect fittings and brass on/off flow control knobs. Also very nice. Stuck one on my firehose sprayer and one on the foam gun.
 
what do i need to use a foam gun? and what is the benefit of it?? I have a hose, and a pressure washer, what else is required? I have no idea about these, but keep hearing about them...any links would be great... thank you.
 
I dont know how you get away with such little soap, I used about 6 -7ozs of CGS super suds and it barely lasted the length of the wash
 
i am purchasing a large supply, and figure that 10%off plus shipping and shipping for other stuff would be greater than combined shipping with other stuff from auto geek...?
 
Why not support an Autopia sponsor? Danase has the same price on the quart size foam gun and also has a 10% Autopia discount.
 
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