I sprayed and cut and polished the bottom of my brothers super sanger with black polyester gel. For the top I plan on using the gel as a primer. I'm going to sand to 400 grit them spray base clear colours on the top side. Does anyone know if automotive clear will adhere to gel sanded with 400 grit? Will I have to put sealer and base on before I clear. I plan on doing some candy paint around the edge.