When setting up spot gloss artwork you should supply two files of identical dimensions, one file for the print, and one for the spot gloss layer. Everything on the spot gloss layer should be in 100% black and should be placed relative to where it should appear on the print file. All files should include a minimum 2mm bleed and preferably include crop marks. Please bear in mind that lines below 0.25mm cannot be guaranteed to come out in spot UV application, and that there is a 1mm registration tolerance that should be taken into account when creating your artwork.

Spot gloss example (pages 1 and 3 are artwork, 2 and 4 are spot gloss)