I found this stuff on a lightning deal, and since it didn’t cost much, I thought I’d give it a try. Unlike the illustration I saw that shows the entire can of it dumped out onto the keyboard, I decided to use just a small amount and see if it is really necessary to use it all up in one go. It isn’t. I took a glob about the size of a marble, maybe an inch and a half around or so, and I squished it up till it was warm and pliable. Then I rolled it over the tops of the keys; not only did they look cleaner, but after a few repetitions, they began to shine, which I didn’t expect. So cool! Once it was good and soft, I began squishing it all the way down between the keys. (You will know you have succeeded when you have to give a little tug to get it out again.)
I didn’t disconnect my keyboard from the computer, nor did I shut it off. I did, however, open a new window before I began, lest I do something unforeseen in cyberspace while cleaning; yikes! I continued squishing and tugging till the whole keyboard was (pretty) clean; I’d give it 90% after about half an hour of squishing and pulling. I’ll attach pictures and you can see. First, the dirt; then, the process; the clean version; and the goo after use.
Not one tiny speck of blue goo remained down there; it all came up in one piece, every single time. When I was done, there was a little pet hair on the surface of the blue goo, but the most obvious sign that the dirt had transferred from the keyboard to the goo, came when I tried returning the goo to the container. It is a totally different color, almost an ocean green! Needless to say, I am not going to keep it in the container for reuse; the used portion is getting thrown away. However, unless I decide to use it to clean a lot of other things, this one modest container will last me for years. What a deal! Highly recommended.