+x Warren (Staff) - 3/22/2018 5:10:12 PMWelcome to the Forum!Yes you are correct in that you can use GlassCast 3. If you are pouring the final resin pour and then leaving the natural resin finish, then we would recommend doing the main pour in GlassCast 50 and the final surface pour of a few mm in GlassCast 3. This is because the surface of GlassCast 3 is every so slightly smoother straight from the pour. Thus if you do not plan any further finishing then that is the method to use.If you plan to sand the surface perfectly smooth anyway, then it is not necessary to use the GlassCast 3, because any slight surface imperfections will be removed in the sanding process anyway.