PYROSIL® Process

Creating a nanoscale-roughness

The PYROSIL® Process is based on the flame-pyrolytic deposition of amorphous silicon dioxide on a substrate material, and thus a type of silicate coating. The surface to be treated will be fed through a gas flame which is doped with a silicon-containing precursor material (PYROSIL®). The PYROSIL®, also referred to as the precursor, burns in the flame and deposits on the surface in a very thin but dense and firmly adhering silicon oxide coating (5 – 100 nm). Due to the short flame-substrate interaction the material's surface temperature remains moderate. Thus, the PYROSIL® Process is suitable not only for glass, ceramics or metals but also outstanding for plastics.

Structured, strongly enlarged surfaces with improved chemical bonding opportunities can be treated effectively and cost-efficiently with the PYROSIL® Process.

Coating Properties
      • Roughening (nano-porous) of the material surface
      • Hydrophilisation of the surface, very high surface energy
      • Invisible and flexible coating
      • Realization of a well-defined and highly reactive surface
      • Long-term stable coating (in combination with a primer, it can be stored without activation loss for 1 – 4 weeks before further processing
          Process Properties
          • Effective and cost-efficient scalable process
          • Low temperature protects material
          • Can be used for nearly any materials
          • Parameters can be customised for customer requirements
          • Adhesion promotion layer for varnishes and glues
          • Corrosion protection layers
          • Sealing layers
          • Barrier coatings
            Deposition of silicon dioxide coating on the material surface
            Funcional principle of PYROSIL® Process
            Nano-roughness depending on the PYROSIL® concentration
            Without pre-treatment (left), improved adhesion by PYROSIL® pre-treatment (right)

            We will gladly advise you. Please contact us.

            Contact person:
            Dr. Norbert Eckardt
            Phone: +49(0)3641 20 49 8-27
            E-mail: eckardt(at)