Every board I've ever used has been a victim of the same thing...dust/grime/dirt. It's kind of inevitable considering it's something you step on with your shoes. What are you guys using to clean your remote? It's worth noting that I keep it in a road case when it's not in use, so it's not being left out 24/7 collecting all sorts of dust from the room, but father time and mother nature win all battles.
I clean my computers out with an air compressor that has a dryer (filter) hooked to it. Takes me 15 minutes to unplug all the cables and about 5 seconds to blow it out. There are no fans on the Kemper so I don't think inside cleaning will be needed until about 30 years old unless you bury it in the desert.
I just use a slightly (slightly!) damp microfiber cloth and then a dry one. Same for my guitars.
