My son just bought a 2007 kevlar Tsunami 175 pro. The fellow we bought it from had stored the kayak hull up for the past 7 years in the sun. It looked in pristine condition and we thought we got a good deal but when we brought it home we noticed that oxidation on the hull was extensive. The kayak is a red top and white bottom. When we run our hand along the white hull a white powdery substance comes off on our hands. Can this be brought back to life? What is the best approach/products to use? I have never dealt with this kind of problem before - don't know where to start.