UPM Forte™ is a reactive glassine precoating that creates an ideal surface for fast silicone curing and resilient anchoring on release liners. This proprietary technology gives you the flexibility to prioritize the benefits that best support your production goals-whether it’s cost savings, energy efficiency, or speed. 

UPM glassines powered by our proprietary Forte technology bring benefits to the entire value chain .

 

Self-adhesive labelstock manufacturer

  • More degrees of freedom in silicone engineering - including formulations with lower platinum and faster curing recipes - thanks to a stronger bond between silicone and paper, without compromising performance.
  • Allows you to reduce costs by reduction of platinum use of up to 50% and energy saving potential up to 15%.
  • Faster running speed and more robust quality  

Label printer

  • Matrix stripping is trouble-free even at very high speeds. 
  • Better print result especially with sensitive pretreated filmic face materials thanks to reduced silicone transfer.

Brand owners & retailers

Label dispensing is trouble-free even at very high speeds and provides a less peel speed dependent release profile. 

 

Unlock cost savings with UPM Forte

Discover how glassines with UPM Forte technology can transform your production efficiency and bottom line. UPM Forte glassines are compatible with silicone formulations that enable 50% reduction in platinum use and support lower curing temperatures for energy savings of up to 15%, UPM Forte delivers measurable cost benefits at every stage of labelstock manufacturing.  

With the flexibility to choose faster-curing silicone formulations and the support of UPM’s expert team, you can achieve substantial annual savings while maintaining top performance and sustainability standards.

Find out how much you could save

 

Consistent release performance 

Stronger bonding between silicone and paper means fewer issues with silicone rub-off. This ensures consistent release performance and reduces the risk of liner failure during label application. 

The chart below compares the silicone anchorage rub-off over an 8-week period between a standard market glassine grade and a glassine enhanced with UPM Forte technology, when using a faster-curing silicone formulation with reduced platinum content.

Superior print quality for maximum shelf-appeal

Silicone transfer occurs when a small amount of silicone coating from the release liner moves onto the label’s face material during production, which can interfere with printing and cause defects or poor ink adhesion, especially on sensitive pretreated films.  

With glassines made using UPM Forte technology, silicone transfer is minimised, so you achieve flawless print results, sharp graphics, and consistent quality throughout production. Rely on Forte for outstanding print performance and maximum shelf appeal!

 

Without UPM Forte

Silicone transfer. 

With UPM Forte

Forte prevents silicone transfer, safeguarding print result.

 

How does the UPM Forte technology work?

UPM Forte technology is an enhanced surface treatment for glassine papers which includes more reactive groups, enabling stronger bonding between the silicone layer and the UPM Forte surface treatment.

In conventional liners, curing and anchorage occur at different times; typically, the silicone cures before strong bonds with the paper are formed. With UPM Forte technology, these processes are synchronised, resulting in a strong bond—like a zipper—between the paper and silicone.

 
 

UPM Glassines with UPM Forte technology