KORODUR System Bonding Bridge HB 5/60 rapid

Application

For the force-fit screeds created by NEODUR HE 60 rapid and with KORODUR FSCem on hardened concrete. For indoor and outdoor use.

Properties

• Faster curing
• Mineral
• reliable, Permanently
• waterproof, suitable for wet rooms
• Chloride-free
• Physiologically and ecologically harmless
• Optimal composite Vapour
• diffusible

Processing

• Substrate: The load-bearing concrete (at least as C25/30, surface tensile strength ≥ 1.5 N/mm2) must be prepared, e.g. milling and shot blasting. For a force-fit composite, the surface must be crack-free, even, free of loose and crumbly components and ultra-fine mortar enrichments, as well as rough and open-pored. The requirements of DIN 18365 and DIN 18560 apply. The flatness should comply with DIN 18202, Table 3, Line 3. Thoroughly pre-wet load-bearing concrete one day before installation, avoid puddling.

• Processing: Mix KORODUR HB 5/60 rapid with the specified amount of water with a slow-running whisk for at least 2 - 3 minutes until a soft-pulped sludge is formed. Do not use overwatered material. Spread the ready-mixed adhesive bridge on the prepared substrate (the pre-wetted load-bearing concrete must be matt damp on the surface) and brush it up to a thickness of approx. 1 - 2 mm with a hard street broom. Do not rework any adhesive bridge that has already dried (recognizable by skin formation), but remove it. The NEODUR HE 60 rapid rapid screed to be installed is immediately laid on the KORODUR HB 5/60 rapid bonding bridge, which is still fresh, in order to counteract premature drying of the bonding bridge.

Joints

All joints in the substrate must be removed. The composite screed must be separated from rising components (walls, columns, etc.).

Delivery form

25 kg paper special packaging

Storage

Store in a dry place like cement. Shelf life approx. 12 months.

Colour: grey

Temperature (processing, ambient and substrate temperature): ≥ 5 °C

Water addition: approx. 5.5 l/25 kg container

Material consumption (depending on surface structure and absorbency of the substrate): approx. 2.0 kg/m2/mm