A long time ago I used to order small p.e.t. cards 0,2 mm, or frosted p.e.t., I only remember that it was printed with uv ink and that we first printed a opaque white as underground color for the FC are transparent. I'm not sure but for max. densities or screen it think it was not that special, like a normal density for coated stock, but it is almost 10 years ago since i last ordered this.
