We parked beside another 5th wheeler this past fall. He had a 2004 unit and said he had fully cleaned the unit, then used ZEP the bought at Home Depot to apply five coats. He said it didn't require buffing and was very easy to apply over the gel coat including the decals. His unit looked brand new. The ZEP is a floor product available through Home Depot, and other locations on the internet, but when I checked, there are numerous products. I'm wondering if anyone else has used this product, and can give any details on the specific product to use? I plan on getting our unit ready for full time use this May, and want to be sure I use the correct one.