Collinite 885 Fleetwax
Marc,IMHO - You are going in the right direction getting a Porter Cable orbital sander/buffer. Make sure you are using an orbital NOT A CIRCULAR buffer. The PC 7424-7426 is the same machine (orbital). A circular buffer takes some technique to avoid burning - damaging the gelcoat. The wax is the final protection for the boat surface, the shine comes from the pre-wax polishing stages.I use the Collinite 885 fleetwax, pure carnuba paste applied over a polished surface using foam pad (blue). Full season+ protection, you'll be amazed seeing the water still beadingn on the surface in November during layup.Suggest you visit a couple of sites to learn about application and productshttp://www.lakecountrymfg.com/padappguide.htmlhttp://www.autogeek.net/index.htmlBobD