Highly durable, elastic, tolerance-compensating 1-component hybrid construction adhesive. Sikaflex-552 AT is suitable for bondings which are exposed to dynamic loads.suitable substrates are metals especially aluminium also anodised, sheet steel also phosphated, chromated and galvanised, primers and paints (2-component systems), ceramic materials, plastics. This product is only suitable for experienced users. In order to be able to guarantee adhesion and material compatibility, preliminary tests must be carried out with original materials under the respective conditions.