So recently ive spilled like 1l of Coke on my Type Cover...it has survived...God i like Microsoft for build quality. After 2-3 days drying inside rice ive noticed that all my keys were sticky, i tried "wash it" using 96% alcohol...no go...tried pure Alcohol Denat., better but still not the same as it was before... After that ive decided to use "play" method and it works like a charm. Type Cover became like a new one. So i take a pack of wet napkins(good ones), alcohol 96%(or 99%), few needles. Ive spilled a bit of alcohol inside pack of napkins, pressed a bit(just a bit) so rest of alcohol went away. After that ive used needles and put wet napkin under a key, pressed on that key few times(10 or more), then ive push napkin left-right under a key and take it away...done!=) Key like new. Same procedure ive used on every key on Type Cover 3 and finally all my keys were like new=) PS: ive created a new topic, case while i was looking for a method to clean keyboard ive found few topic related to this problem but without any solution. PSS: sorry for my english, not my main language.