It is incredible how much you can extend the lifespan of individual items by merely treating them with care and respect. Now, this is not mentioning that you need to treat your kneeboard like royalty. No, all you need to do is take some time to care for it.
For starters, while not in use, keep it away from direct sunlight as UV rays will degrade the materials. Secondly, especially if you go kneeboarding in the ocean, rinse the board with fresh water after you are done with it. Salt is not a very solid substance; let ’s say that.