Coding, Printing & Labeling: Page 6

'We said at the beginning, we need to replace the aluminum layer, but we said we should also avoid over-engineering when possible. So we set ourselves two separate targets. The first one was to find a barrier level which is the equivalent of metalized PET. And we're talking barrier to water vapor (WVTR) and barrier to oxygen (OTR). The equivalent of metallized PET is a barrier of less than 1 OTR, and less than 1 WVTR. We also needed a barrier which is equivalent to aluminum. So we need to have less than 0.1, OTR and less than 0.1 WVTR. And if you look at the values here, AluBond, the metallized version, has three points. And that is the equivalent of less than 0.1 OTR and WVTR, so that's your aluminum barrier. And for those who don't need that level, you can have the option of the transparent version, which here you can see as the AlOx (aluminum oxide), we've called it and that has two pluses, because that's that less than 1 OTR, and less than 1 WVTR. In our language to simplify things we call one high barrier and the other ultra-high barrier,' Alexander says.