Hello. Does anyone have any tips for preventing the "dripping" of white residue from my white rubrails which have become "chalky/oxidized" over the years. They are still very functional but I don't like the appearance of the white streaking down my hull. Is replacing them my only option? I'm just worried that the same thing will occur eventually. Has anyone tried any topical applications of any products to the rub rails to prevent this white residue from bleeding down the hull. Thanks in advance. (It's on an Ericson 30+ 1980 - I'm not sure but I assume they are the original rub rails - and I'm in sunny/steamy florida)