They do not work "better" than a hand wash... they are a supplement to the hand wash process.
There are two options for foaming mechanisms, a foam lance which attaches to a pressure washer and produces thick, heavy foam.. or a foam gun which attaches to a standard hose and produces thin, soapy water.
Layer of soapy water created with
Gilmour Foam Gun
Layer of foam created with
DI Foam Lance and pressure washer
In any case, the products are used in the same fashion. There are two ways most people utilize foaming tools.
1 - A foam presoak. This adds a step to your wash process as you rinse the car and then cover it with a layer of foam to help loosen dirt on the paint prior to washing. I explain this process in the following article.
How to Implement a Foam Lance into your Wash Routine by Zach McGovern
2 - As soapy water for the wash process. In this scenario, the foam is sprayed onto the car and then immediately washed with your wash mitt, therefore replacing the need to have a bucket with soap and water in it.
Hope that helps
Zach McGovern
Detailed Image Ask-A-Pro Blog Author
www.DetailPeoria.com