Any sanding or stripping should/ 'MUST" Washed down with wax and grease
remover. To prevent Fish eye, I always use a fish eye preventer as a last
bastion to the dreaded fish eye ! Sanding a coat of silicone will just
spread it over the whole job........ Spend the extra $25.00 for wax & grease
remover, and fish eye preventer............. Here's a question,...........if
your going to do all the work required and $$$$$$$ for a good paint job,
........"Why wouldn't ypo"?

Skipper