Hi. I have gecko eco 2021 board.
Is it possible for water to come in contact with bottom/wooden part of the board after few years?
Is wood well protected with layer of protactive coating of some kind? And how do I maintain protection - are there any waxes or spray lacque or do I need not to worry about it?
no, no need to worry, there is a layer of glass over the wood as protection, so if you have a ding/damage, repair it with epoxy and the rest should be fine.