It is very difficult and you have to exert a lot of pressure to press the mass as low as possible in the keyboard. Under no circumstances rub otherwise there is crumbs, if necessary, you can roll it. But it is quite time consuming when you want it reasonably clean, so it must allow at least 15 minutes when the keyboard is already a few years old. In Dried but you have to laboriously scrape away with cotton swab or a fingernail, the mass goes away does nothing. Not even the smallest places. The keyboard looks now certainly fresh again, but an old keyboard of course, is not rendered novel. Due to the high pressure, so that ever does anything, it would not be surprised if soon make any buttons funny business. Overall I would say that can be mainly achieved in keyboards with low keys good results. The higher the keys and the denser the stand, the more pressure you have to apply. In the crowd you see at the end of the absorbed, such as hair, crumbs ... For the hands, as the someone complained, so if you hands after properly wash with soap sticks anything ... your hands are just dry. During the application I had no feeling of "stick" - the mass is just damp, presumably by the disinfectant which is contained therein.
Would probably not buy again, but rather to change the keyboard every few years. Most of dirt will anyway be inside the keyboard where to turn itself and knocking little helps. For the meantime also disinfectant spray, evaporate the residue and possibly blow through with compressed air helps. Both are cheaper to obtain than the mass here and is particularly hygienic, because who wants the mass already 10x hernehmen, with all that "the collected". The amount of disinfectant in the mass will probably vanish eventually.
