The treatment of surfaces for influencing the adhesion of glues, coatings or printing media by means of combustion is a method established for years in numerous industrial fields. A further significant improvement of the adhesion can be achieved by deposition of a reactive silicate layer, produced by flame pyrolysis. Through combustion of a silane additive component in a combustion-gas atmosphere, are produced very dense and adhering silicate layers with high surface energy to materials, such as metals, glass, ceramics and plastics.
The surface pretreatment ensures the generation of a high-energy silicate layer (layer thickness max. 100 nm) on the material surfaces via flame pyrolysis (surface silicate coating), the application of an adhesion promoter, suited to the adhesive, the coating or to the printed medium, as also the Improvement of the wettability of the surface.
In combination to adhesion promoters with the corresponding functionality, the layers ensure the basis for long-term-, water- and solvent-stable adhesions, coatings and prints. Further applications of this technology are the temporary corrosion protection as well as the production of diffusion barrier layers.
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Sample applications of the SurASil-Process:
Automobile construction and repair: replacement of chromating, painting preparation and elimination of grinding work
Plastics technology: bonding, printing & coating
Glass industry: production of laminated and decorative glasses, glass printing, glass processing, glass pretreatment
Printing industry: printing on glass, metals, plastics
Coating technology: optimal pretreatment of glass, metals, ceramics, plastics and composite materials
Construction industry: bonding construction materials
Aerospace: gluing, coating and printing of aircraft components and space systems
Solar technology: coating of solar modules and solar cells
Optics: bonding of lenses and other optical components
Sensor technology: bonding and printing of sensor components
Electronics: bonding and printing of electronic components, electronic circuits and control modules
Medical technology: printing and coating of medical products, medical measuring devices and instruments
Model construction: component gluing, painting and coating
Solutions for you
Surface Pretreatment - Systems and Devices
The test-inks kit SurAChem TT K with six test inks in the energy spectrum 25-72 mN/m is suitable for measuring the surface energy on plastics, metals, glass, ceramics as also composite materials.
Surface pretreatment with the SurAChem VG 03 manual fire torch. Ideal for industrial applications. Ideal for surface pretreatment up to several square meters.
Surface pretreatment with the SurAChem VG 02 K Kit and the SurAChem VG 02 manual fire torch. Ideal for the significant increase of adhesion on plastics, metals, glass, ceramics and composite materials.
In combination with a surface pretreatment device, the SurASil cartridges are suitable for the deposition of amorphous silicate layers on metal, plastic, glass and ceramic surfaces, increasing significantly the adhesive strength of coatings, adhesives and printing media
SILICOAT DU silane dispensing unit for the dispensing of a silane-based precursor in a combustion-gas atmosphere. The SILICOAT DU is to be connected to an external gas control unit.
SILICOAT AD flame control system with integrated silane dispensing unit and customer-specific burner for the dispensing of a silane-based precursor in a combustion-gas atmosphere.
The flame pretreatment systems apply flame pyrolysis to materials for various applications, increasing significantly the adhesion of coatings, adhesives and print media. The width and geometry of the burner, as well as the transport through the flame pretreatment system, is individually adapted to the size, shape and material property of the pretreated parts.