How to calculate the correct ratio for snow foam
How to calculate the correct ratio for snow foam
When using snow foam, the product might come with instructions that you should, say, use a 4% ratio of product. However, this ratio is normally calculated for how much product should be used directly on the car, *not* how much should be put into the foam lance bottle ! This is easy to get confused about.
For a given amount of snow foam in your bottle, the ratio at the car will depend on the characteristics of your foam lance, of your pressure washer, and even of your water pressure !
Do not despair though, because via a simple experiment you can calculate how much snow foam your particular setup will deliver at the car.
See this thread from Detailing World.
Does it really matter that much? I tend to do it by eye and so far I haven't made a foam that's too thick or anything, but can not having the mixture spot on have any adverse affects?
I don't think it can have any particular adverse affects, just that if you're not using it at the correct ratio, then you're not using it as it was originally designed, so not getting the best out of it.
The calculation might sound complicated, but it's pretty easy really, and you only need to do it once.