Arizona Wind & Solar sells a lot of different stuff. The Kyocera panels you're talking about were originally designed for static installations. They're not sealed along the frame. Adam Correa used two of those on his Folkboat in the 2010 SHTP and saltwater got into the junction box and ruined the panel in 21 days. Some of you might have a little quicker trip than he did, though. LOL!
My panels are rigid frame, polycrystalline panels and use small cell technology. 36 cells in my 50-watt panel. This really helps with partial shading or low incident of light situations such as extreme sun angle. The frame is sealed with polysulfide (not silicone), as is the junction box. I use a very expensive junction box that has a packing gland type entrance for the wires and a rubber o-ring gasket on the lid. They were designed from the outset for marine use. They're about 2' x 2' square and are an excellent value for a saltwater-rated panel. You can check them out on my site at
www.southboundsolar.com.