Sika Technology Ag

Stefan Egli

Dana Maiwald

Reto Dohner

An adhesive system, having an adhesion promoter composition, containing at least one mercaptosilane, at least one polysilane, at least one transition metal complex having substantially only monodentate ligands, and at least one non-alcoholic solvent, and an adhesive, wherein the adhesive, within an hour after application and storage at 23&#xb0; C. and 50% relative air humidity, has a tensile shear strength of at least 3 MPa, as measured according to ISO 4587, and/or, within an hour after application and storage at 23&#xb0; C. and 50% relative air humidity, has at least 50%, preferably at least 60%, of the tensile shear strength achievable after application and storage for 7 days at 23&#xb0; C. and 50% relative air humidity, as measured according to ISO 4587. An adhesion promoter system has a liquid container having a manually actuable output apparatus, and an adhesion promoter composition, as disclosed above.

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Zurich, Switzerland

Stefan Egli