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The declared product of HVU2 is a twocomponent system. The resin component comprises a resin based on methacrylates as well as mineral fillers. The curing agent component comprises of peroxide hardener. Mixing the two components in the borehole initiates the curing (hardening) reaction of both binder systems. During the curing phase a very strong bond is formed. The system formed during curing results in a crosslinked duromer with desired design properties (high bond strengths within short curing time) and particular longterm stability. Composite foils are used for the HVU2 capsule. This kind of packaging serves the following purposes: waste volume reduction, easy storage and transport, less packaging material. Through legislation and increased public awareness users have increasingly become discerned towards the use of styrene and other highly volatile components with their resulting unpleasant odour and low flash point (flammability). The reaction resins used in all Hilti hybrid adhesives contain no styrene, are practically odourless and have a considerably higher flash point, i.e. higher than 100 °C in comparison to 34 °C for styrenebased products. HVU2 is the ultimate performance foil adhesive capsule for heavyduty anchoring in concrete.