Hard Adirondacks that are bare may often change a soft silvery gray. You are going to want to sand these Adirondacks once per year, ever-so slightly, using a 150 or 180-grit sandpaper. That is just with the objective of "knocking down" any uneven blurry grain that might naturally occur as an effect of exposure to the elements. It will also remove any bigger fibres that separate away and could cause splinters. Additionally, it offers an appearance that is sleek and even to the Adirondack furniture. Do not sand through the silver to expose the normal colour of the wood. The purpose isn't to eliminate the aging that is silver but to only keep it smooth and looking great!