I bought this to clean the tiny grooves in my car, as well as the dust that always collects on the dash and door! I travel a lot and eat while I drive, so crumbs end up in all the cracks and crevices.This putty worked great! However, I tried pressing it in a littler farther on some of the buttons on my steering wheel. Some got stuck. I'll need a small needle-like tool to get it out, now.So, I recommend to NOT press it down hard, especially on buttons and would never lay it all out and press into a keyboard, unless you're wanting to buy a new keyboard to replace it anyway.I used just a very small amount in my car, and when it was brown and full of chunks, I threw it away and started with a fresh new piece.I do think most gooey stuff would do the same thing (like the flarp from walmart), so I might try that when I need to replace this.I like that it came with 4 packages, each a different color. I like the different packages, so if it doesn't seal all the way, you have 3 other packages to use and try again. Read more