I plan on making some small moulds of interior car parts that i can repeat (the usual kind of pieces bits of trim etc) I dont want to skin the parts as that is a permanent change and want to revert back if need be.  Im looking for a nice high gloss shiny finish but not sure which is the best way to get it. Is there a preferred method depending on the application? I guess i will be doing the lay up method without a vacuum at the moment.