I wonder if shak meant this
http://www.columbiaflooring.com/prod...tyhardwood.php
A tad less than half way down the front page it says:
Columbia 25-Year DiamondPlate Finish Warranty
Your Columbia hardwood flooring is protected by DiamondPlate™, our exclusive, state-of-the-art, clear, aluminum oxide finish. This means that your floor, when maintained according to Columbia's care and maintenance recommendations, will not wear through the DiamondPlate aluminum oxide finish during the specified warranty period.