Forming fabrics for board and paper machines

Forming fabrics

Valmet has constantly improved their forming fabric technology and created fabrics providing excellent runnability, high wear resistance, long running time, good paper profiles and good retention. Specialized forming fabric designs for packaging grades continue to improve drainage.


Polarized forming fabrics


Polarized forming fabrics are made with special polarized technology designed to diffuse drainage which results in:  

  • Very good runnability
  • Better cleanliness
  • Improved retention
  • Excellent wear potential
  • Low marking

Traditionally, all SSB (sheet support binding) fabrics have had direct drainage channels. In the polarized structure, the machine direction yarns on both the paper side and the roll side are shifted to form an off-stacked structure. This special structure removes the direct drainage channels traditionally used in forming fabrics.

The unique polarized structure allows controlled initial drainage in the paper-making process. That improves retention and helps keeping the machine clean. Good runnability and cleanliness reduce breaks and therefore increase production capacity remarkably. Cost-savings are created by being able to use less chemicals.


Valmet's forming fabrics comprise a wide range of excellent forming fabrics to fulfill all customer expectations: 

Valmet Forming Fabric GM (earlier known as GapMaster) is the widest SSB fabric family on the market and it is designed for:

  • Demanding board and paper machine conditions
  • Long fabric life
  • Even paper profiles
  • All printing and writing paper grades
  • FBB, liquid and cup boards

Valmet Forming Fabric GM uses polarized forming fabric technology.


Valmet Forming Fabric PM 

Durable SSB triple layer fabric for packaging paper and board machines
Valmet Forming Fabric OPA  Stable SSB fabric with high wear resistance

Valmet Forming Fabric OP
High wear resistance and safe to use
Valmet Forming Fabric Hybrid CS  Thin and stable, providing improved formation, excellent sheet dryness and a clean run


Seeking excellence with polarized forming fabrics

Seeking excellence with polarized forming fabrics

In 2016, Valmet introduced a new generation of forming fabrics with a polarized structure. Customer experiences have shown that these polarized forming fabrics have the potential to revolutionize water removal in the papermaking process.

Huge improvements  through forming fabrics

Huge improvements through forming fabrics

The right forming fabric can bring about huge improvements in boardmaking. Valmet Forming Fabric OP improves machine efficiency and paper quality as well as providing major cost savings – all benefits warmly welcomed by packaging grade producers.