UPM's label liner portfolio spans roughly 24 to 81 microns, with thickness varying by material type to suit different converting and application needs. PET liners run thinnest, from 24 to 30 microns, supporting more labels per roll and fewer roll changes on high-speed lines. Glassine liners span a wider mid-range, from 41 to 69 microns, while clay-coated kraft (CCK) and polycoated kraft (PCK) liners run from 53 to 81 microns for applications that call for more robust handling.
These ranges overlap rather than sit in strict tiers, since material properties, not thickness alone, often determine which liner performs best for a given application. Visit our label product finder to compare exact specifications across our full liner range.
