Printing on Clear material works best with black ink or very dark colours. Light colours are usually achieved by printing a lighter coverage onto white paper, but this doesn't work when the material is clear. Pictures and gradient effects also don't work the same on clear as they do on opaque stocks, therefore it is best to stick with solid vector shapes and thicker fonts in black or dark colours.

The only way to use light colours on the clear stock would be to first print background of opaque white ink, then print on top of this solid area. If the design requires CMYK + White, the file will undergo additional inspections to ensure that it is set up properly and that the desired effect will be achieved.