Porosity contribution

How mineral fibres work

Icon related to working mechanism of lapinus mineral fibres in brake systems. friction material

Porosity can be generated during processing of the friction material with the use of crosslinking gases. This porosity is generally present in the phenolic matrix. 

it can also be generated with the use of raw materials: they can create porous structures or can create structures where voids are generated. Porosity affects thermal conductivity, damping properties, friction, wear and squeal.

Fibre length, fibre coating, shot content and fibre diameter are relevant parameters contributing to the generation of porosity.