I think I cover those questions here,
How To Use Detailing Clay - Part 1
[video=youtube_share;gfxAesk4Po4]- How to use detailing clay - Part 1[/video]
How To Use Detailing Clay - Part 2
[video=youtube_share;opfK408uIxM]- How to use detailing clay - Part 2[/video]
The short answers are,
As you visually see your clay loading up with contaminants, use common sense and throw contaminated clay away and switch to new clay.
To store you can place in the container the clay came in, (if it came in a container), and mist in some spray detailer, or store in a Zip-lock baggie and mist in some spray detailer so the clay won't stick too much to the plastic. (It doesn't hurt anything if it does).
Note that if you have never clayed your car before and when you feel the paint it feels like rough sand paper, then you're going to load the clay up with contaminants faster than if when you feel the paint and it feels somewhat smooth.
So how contaminated your car's finish is determines how fast or slowly you use up your clay bar(s).
For more videos, see the links in my Signature Line...
